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Lake Okeechobee algae history from satellite

We read Lake Okeechobee from 794 cloud-free satellite scenes between Feb 1, 2016 – Sep 26, 2026. Here is what the surface water showed.

Clear scenes
794
Typical (median), index
84
Highest reading
326 · May 28, 2023
Latest scene
77 · Sep 26, 2026

Algae signal (red-edge index) over time

01002003004002017201820192020202120222023202420252026Feb 1, 2016: 78 index (high)Feb 14, 2016: 73 index (low)Mar 2, 2016: 83 index (low)Apr 1, 2016: 88 index (low)Apr 14, 2016: 104 index (low)May 1, 2016: 87 index (low)Jun 30, 2016: 117 index (high)Jul 20, 2016: 137 index (high)Aug 22, 2016: 93 index (high)Aug 29, 2016: 95 index (low)Sep 11, 2016: 107 index (low)Sep 18, 2016: 95 index (high)Oct 21, 2016: 72 index (low)Nov 10, 2016: 75 index (high)Nov 20, 2016: 58 index (high)Nov 27, 2016: 70 index (low)Nov 30, 2016: 73 index (low)Dec 7, 2016: 72 index (high)Dec 17, 2016: 87 index (high)Dec 30, 2016: 47 index (low)Jan 6, 2017: 74 index (high)Jan 26, 2017: 73 index (low)Feb 8, 2017: 78 index (low)Feb 15, 2017: 78 index (low)Feb 18, 2017: 89 index (low)Feb 25, 2017: 82 index (low)Mar 10, 2017: 81 index (low)Mar 17, 2017: 62 index (low)Mar 30, 2017: 100 index (low)Apr 19, 2017: 118 index (low)May 16, 2017: 95 index (low)Jun 25, 2017: 112 index (high)Jul 10, 2017: 112 index (high)Jul 15, 2017: 120 index (high)Aug 4, 2017: 124 index (high)Aug 12, 2017: 136 index (high)Aug 19, 2017: 94 index (high)Aug 24, 2017: 102 index (high)Sep 13, 2017: 99 index (high)Sep 21, 2017: 93 index (low)Sep 26, 2017: 74 index (low)Sep 28, 2017: 70 index (high)Oct 23, 2017: 79 index (low)Oct 31, 2017: 48 index (low)Nov 7, 2017: 68 index (high)Nov 12, 2017: 91 index (low)Nov 17, 2017: 62 index (low)Nov 20, 2017: 61 index (low)Nov 25, 2017: 63 index (low)Nov 30, 2017: 67 index (low)Dec 2, 2017: 71 index (low)Dec 7, 2017: 76 index (low)Dec 10, 2017: 45 index (low)Dec 15, 2017: 64 index (low)Dec 17, 2017: 83 index (low)Dec 20, 2017: 75 index (high)Dec 27, 2017: 70 index (high)Jan 4, 2018: 48 index (low)Jan 11, 2018: 72 index (low)Jan 16, 2018: 62 index (low)Jan 24, 2018: 62 index (low)Jan 26, 2018: 56 index (low)Jan 31, 2018: 58 index (low)Feb 8, 2018: 72 index (low)Feb 10, 2018: 70 index (low)Feb 15, 2018: 98 index (low)Feb 18, 2018: 72 index (high)Feb 20, 2018: 67 index (low)Feb 23, 2018: 72 index (low)Feb 25, 2018: 69 index (low)Feb 28, 2018: 67 index (low)Mar 2, 2018: 70 index (low)Mar 5, 2018: 62 index (low)Mar 15, 2018: 54 index (low)Mar 17, 2018: 68 index (low)Mar 20, 2018: 81 index (low)Mar 22, 2018: 53 index (low)Mar 25, 2018: 72 index (low)Mar 27, 2018: 56 index (low)Mar 30, 2018: 85 index (low)Apr 1, 2018: 73 index (low)Apr 4, 2018: 88 index (low)Apr 6, 2018: 74 index (low)Apr 9, 2018: 108 index (low)Apr 14, 2018: 110 index (low)Apr 16, 2018: 63 index (low)Apr 26, 2018: 77 index (low)May 1, 2018: 97 index (low)May 6, 2018: 89 index (low)Jun 20, 2018: 91 index (high)Jul 5, 2018: 130 index (high)Jul 15, 2018: 109 index (high)Jul 20, 2018: 131 index (high)Jul 25, 2018: 112 index (high)Jul 28, 2018: 152 index (low)Jul 30, 2018: 96 index (low)Aug 4, 2018: 101 index (high)Aug 9, 2018: 93 index (high)Aug 14, 2018: 100 index (high)Aug 17, 2018: 129 index (low)Aug 19, 2018: 99 index (high)Aug 24, 2018: 88 index (high)Aug 27, 2018: 132 index (low)Aug 29, 2018: 94 index (high)Sep 1, 2018: 132 index (low)Sep 6, 2018: 122 index (low)Sep 8, 2018: 93 index (high)Sep 11, 2018: 119 index (low)Sep 13, 2018: 80 index (high)Sep 16, 2018: 137 index (low)Sep 21, 2018: 137 index (high)Sep 23, 2018: 109 index (high)Sep 28, 2018: 167 index (high)Oct 1, 2018: 99 index (low)Oct 3, 2018: 121 index (low)Oct 6, 2018: 95 index (high)Oct 13, 2018: 96 index (high)Oct 16, 2018: 94 index (high)Oct 18, 2018: 97 index (high)Oct 21, 2018: 88 index (high)Oct 23, 2018: 95 index (high)Oct 28, 2018: 80 index (high)Oct 31, 2018: 81 index (high)Nov 2, 2018: 101 index (high)Nov 5, 2018: 95 index (high)Nov 7, 2018: 86 index (high)Nov 10, 2018: 86 index (high)Nov 17, 2018: 87 index (high)Nov 30, 2018: 64 index (high)Dec 2, 2018: 83 index (high)Dec 7, 2018: 85 index (high)Dec 10, 2018: 76 index (low)Dec 12, 2018: 75 index (high)Dec 15, 2018: 88 index (high)Dec 17, 2018: 77 index (low)Dec 22, 2018: 77 index (low)Dec 25, 2018: 69 index (low)Dec 30, 2018: 89 index (high)Jan 1, 2019: 91 index (high)Jan 4, 2019: 81 index (high)Jan 6, 2019: 78 index (high)Jan 11, 2019: 83 index (low)Jan 14, 2019: 71 index (low)Jan 19, 2019: 84 index (low)Jan 21, 2019: 72 index (high)Jan 29, 2019: 74 index (high)Feb 3, 2019: 72 index (low)Feb 5, 2019: 74 index (high)Feb 8, 2019: 81 index (high)Feb 15, 2019: 79 index (high)Feb 18, 2019: 86 index (low)Feb 23, 2019: 87 index (low)Feb 28, 2019: 91 index (low)Mar 2, 2019: 85 index (high)Mar 7, 2019: 75 index (high)Mar 10, 2019: 88 index (low)Mar 12, 2019: 85 index (low)Mar 15, 2019: 91 index (low)Mar 22, 2019: 63 index (low)Mar 25, 2019: 87 index (high)Mar 27, 2019: 80 index (low)Mar 30, 2019: 110 index (low)Apr 1, 2019: 96 index (low)Apr 11, 2019: 91 index (high)Apr 16, 2019: 85 index (high)Apr 21, 2019: 82 index (low)Apr 24, 2019: 102 index (high)May 6, 2019: 113 index (low)May 16, 2019: 99 index (low)May 21, 2019: 109 index (high)May 26, 2019: 115 index (low)May 31, 2019: 133 index (high)Jun 5, 2019: 105 index (high)Jun 15, 2019: 95 index (low)Jun 20, 2019: 105 index (high)Jun 25, 2019: 126 index (high)Jul 15, 2019: 115 index (high)Jul 20, 2019: 125 index (high)Jul 25, 2019: 127 index (high)Jul 28, 2019: 110 index (high)Jul 30, 2019: 110 index (high)Aug 9, 2019: 124 index (high)Aug 14, 2019: 91 index (low)Aug 19, 2019: 97 index (low)Aug 22, 2019: 108 index (low)Aug 24, 2019: 97 index (high)Aug 27, 2019: 96 index (high)Sep 1, 2019: 140 index (low)Sep 6, 2019: 123 index (low)Sep 8, 2019: 88 index (high)Sep 13, 2019: 104 index (low)Sep 16, 2019: 109 index (low)Sep 18, 2019: 95 index (low)Sep 26, 2019: 88 index (low)Sep 28, 2019: 100 index (high)Oct 1, 2019: 95 index (low)Oct 3, 2019: 85 index (low)Oct 6, 2019: 97 index (low)Oct 8, 2019: 92 index (high)Oct 13, 2019: 84 index (high)Oct 16, 2019: 89 index (low)Oct 21, 2019: 89 index (high)Oct 23, 2019: 90 index (high)Oct 28, 2019: 97 index (high)Nov 5, 2019: 93 index (high)Nov 7, 2019: 88 index (high)Nov 10, 2019: 71 index (low)Nov 12, 2019: 91 index (high)Nov 20, 2019: 61 index (low)Nov 22, 2019: 79 index (high)Nov 25, 2019: 71 index (low)Nov 27, 2019: 85 index (high)Nov 30, 2019: 84 index (high)Dec 2, 2019: 79 index (low)Dec 7, 2019: 73 index (low)Dec 10, 2019: 80 index (low)Dec 15, 2019: 70 index (low)Dec 17, 2019: 111 index (low)Dec 25, 2019: 82 index (low)Dec 27, 2019: 67 index (low)Jan 1, 2020: 69 index (low)Jan 4, 2020: 80 index (low)Jan 6, 2020: 65 index (high)Jan 9, 2020: 65 index (low)Jan 11, 2020: 83 index (low)Jan 14, 2020: 80 index (low)Jan 16, 2020: 78 index (high)Jan 21, 2020: 74 index (low)Jan 26, 2020: 62 index (low)Feb 3, 2020: 70 index (high)Feb 5, 2020: 96 index (low)Feb 10, 2020: 77 index (low)Feb 13, 2020: 87 index (low)Feb 15, 2020: 100 index (low)Feb 18, 2020: 88 index (low)Feb 20, 2020: 92 index (high)Feb 23, 2020: 82 index (high)Feb 25, 2020: 79 index (low)Feb 28, 2020: 80 index (low)Mar 1, 2020: 82 index (high)Mar 4, 2020: 85 index (low)Mar 11, 2020: 79 index (low)Mar 14, 2020: 89 index (low)Mar 16, 2020: 85 index (high)Mar 19, 2020: 89 index (low)Mar 21, 2020: 101 index (high)Mar 24, 2020: 102 index (low)Mar 26, 2020: 89 index (low)Mar 29, 2020: 93 index (low)Apr 3, 2020: 89 index (low)Apr 8, 2020: 106 index (low)Apr 10, 2020: 104 index (low)Apr 13, 2020: 125 index (low)Apr 15, 2020: 88 index (low)May 3, 2020: 104 index (low)May 5, 2020: 91 index (low)Jun 9, 2020: 116 index (high)Jun 14, 2020: 128 index (high)Jun 24, 2020: 117 index (high)Jun 29, 2020: 160 index (high)Jul 4, 2020: 121 index (high)Jul 9, 2020: 118 index (high)Jul 14, 2020: 106 index (high)Jul 19, 2020: 128 index (high)Jul 24, 2020: 122 index (high)Aug 1, 2020: 158 index (low)Aug 8, 2020: 125 index (high)Aug 11, 2020: 126 index (low)Aug 13, 2020: 118 index (high)Aug 23, 2020: 106 index (high)Aug 26, 2020: 151 index (low)Aug 28, 2020: 117 index (high)Aug 31, 2020: 160 index (low)Sep 2, 2020: 112 index (high)Sep 5, 2020: 123 index (low)Sep 10, 2020: 110 index (low)Sep 15, 2020: 122 index (low)Sep 17, 2020: 96 index (high)Sep 22, 2020: 99 index (low)Sep 25, 2020: 136 index (high)Sep 27, 2020: 119 index (high)Oct 7, 2020: 89 index (low)Oct 12, 2020: 92 index (high)Oct 15, 2020: 86 index (high)Oct 17, 2020: 85 index (low)Oct 27, 2020: 86 index (high)Oct 30, 2020: 90 index (high)Nov 1, 2020: 109 index (high)Nov 4, 2020: 80 index (low)Nov 9, 2020: 68 index (low)Nov 14, 2020: 66 index (low)Nov 16, 2020: 75 index (high)Nov 19, 2020: 71 index (low)Nov 21, 2020: 60 index (low)Nov 24, 2020: 60 index (low)Nov 26, 2020: 73 index (low)Nov 29, 2020: 70 index (high)Dec 1, 2020: 52 index (low)Dec 6, 2020: 69 index (low)Dec 9, 2020: 55 index (low)Dec 14, 2020: 72 index (low)Dec 19, 2020: 76 index (low)Dec 21, 2020: 69 index (low)Dec 26, 2020: 68 index (low)Dec 29, 2020: 65 index (low)Jan 5, 2021: 61 index (high)Jan 10, 2021: 62 index (low)Jan 20, 2021: 67 index (high)Jan 23, 2021: 76 index (low)Jan 28, 2021: 59 index (low)Feb 2, 2021: 50 index (low)Feb 4, 2021: 66 index (high)Feb 9, 2021: 76 index (high)Feb 14, 2021: 72 index (high)Feb 17, 2021: 96 index (low)Feb 19, 2021: 78 index (low)Feb 22, 2021: 73 index (low)Feb 24, 2021: 77 index (low)Feb 27, 2021: 80 index (low)Mar 1, 2021: 78 index (low)Mar 4, 2021: 78 index (low)Mar 9, 2021: 69 index (low)Mar 11, 2021: 68 index (low)Mar 14, 2021: 69 index (low)Mar 16, 2021: 76 index (low)Mar 19, 2021: 80 index (low)Mar 24, 2021: 79 index (low)Apr 3, 2021: 72 index (low)Apr 5, 2021: 70 index (low)Apr 8, 2021: 75 index (low)Apr 10, 2021: 76 index (low)Apr 13, 2021: 75 index (low)Apr 18, 2021: 129 index (low)Apr 23, 2021: 123 index (low)Apr 25, 2021: 94 index (low)Apr 30, 2021: 98 index (low)May 5, 2021: 115 index (high)May 15, 2021: 90 index (low)May 20, 2021: 92 index (low)May 25, 2021: 85 index (low)Jun 4, 2021: 106 index (low)Jun 9, 2021: 105 index (high)Jul 4, 2021: 106 index (high)Jul 14, 2021: 123 index (low)Jul 19, 2021: 130 index (high)Jul 22, 2021: 127 index (high)Jul 24, 2021: 121 index (high)Jul 29, 2021: 95 index (high)Aug 8, 2021: 85 index (high)Aug 18, 2021: 118 index (high)Aug 21, 2021: 152 index (low)Sep 7, 2021: 98 index (high)Sep 10, 2021: 101 index (low)Sep 15, 2021: 104 index (high)Sep 20, 2021: 107 index (high)Sep 22, 2021: 110 index (high)Sep 30, 2021: 85 index (low)Oct 2, 2021: 88 index (high)Oct 5, 2021: 90 index (high)Oct 7, 2021: 109 index (high)Oct 10, 2021: 98 index (high)Oct 12, 2021: 84 index (high)Nov 9, 2021: 75 index (high)Nov 16, 2021: 65 index (high)Nov 19, 2021: 64 index (low)Nov 21, 2021: 101 index (low)Nov 24, 2021: 65 index (high)Nov 26, 2021: 65 index (high)Nov 29, 2021: 63 index (low)Dec 1, 2021: 63 index (high)Dec 4, 2021: 64 index (high)Dec 14, 2021: 71 index (high)Dec 16, 2021: 70 index (high)Dec 19, 2021: 76 index (low)Dec 24, 2021: 73 index (high)Dec 26, 2021: 73 index (high)Dec 29, 2021: 74 index (high)Dec 31, 2021: 88 index (high)Jan 3, 2022: 69 index (low)Jan 5, 2022: 75 index (high)Jan 8, 2022: 70 index (high)Jan 10, 2022: 82 index (high)Jan 13, 2022: 70 index (high)Jan 15, 2022: 67 index (high)Jan 18, 2022: 68 index (high)Jan 20, 2022: 83 index (high)Jan 30, 2022: 68 index (high)Feb 2, 2022: 71 index (low)Feb 4, 2022: 84 index (low)Feb 12, 2022: 82 index (high)Feb 14, 2022: 59 index (low)Feb 17, 2022: 85 index (low)Feb 22, 2022: 77 index (low)Feb 24, 2022: 78 index (high)Feb 27, 2022: 78 index (high)Mar 4, 2022: 72 index (low)Mar 6, 2022: 75 index (low)Mar 9, 2022: 88 index (low)Mar 11, 2022: 85 index (high)Mar 14, 2022: 88 index (low)Mar 16, 2022: 95 index (high)Mar 19, 2022: 90 index (low)Mar 21, 2022: 70 index (low)Mar 26, 2022: 69 index (low)Mar 29, 2022: 76 index (low)Mar 31, 2022: 85 index (low)Apr 5, 2022: 100 index (high)Apr 10, 2022: 64 index (low)Apr 20, 2022: 83 index (low)Apr 23, 2022: 109 index (low)Apr 25, 2022: 84 index (low)Apr 30, 2022: 99 index (low)May 5, 2022: 96 index (high)May 10, 2022: 79 index (low)May 13, 2022: 120 index (low)May 15, 2022: 100 index (low)May 18, 2022: 187 index (low)May 30, 2022: 111 index (low)Jun 7, 2022: 264 index (low)Jun 9, 2022: 110 index (high)Jun 14, 2022: 109 index (low)Jun 24, 2022: 118 index (high)Jul 4, 2022: 125 index (high)Jul 9, 2022: 121 index (high)Jul 14, 2022: 108 index (high)Jul 19, 2022: 116 index (high)Jul 29, 2022: 134 index (high)Aug 3, 2022: 140 index (high)Aug 8, 2022: 126 index (high)Aug 13, 2022: 151 index (high)Aug 16, 2022: 199 index (low)Aug 18, 2022: 108 index (high)Aug 23, 2022: 92 index (high)Aug 26, 2022: 141 index (low)Aug 28, 2022: 92 index (high)Aug 31, 2022: 100 index (high)Sep 2, 2022: 111 index (high)Sep 5, 2022: 105 index (high)Sep 7, 2022: 102 index (high)Sep 10, 2022: 139 index (low)Sep 12, 2022: 106 index (high)Sep 20, 2022: 94 index (high)Sep 22, 2022: 97 index (high)Sep 25, 2022: 97 index (high)Sep 30, 2022: 110 index (low)Oct 2, 2022: 147 index (low)Oct 5, 2022: 79 index (low)Oct 7, 2022: 70 index (high)Oct 15, 2022: 84 index (low)Oct 17, 2022: 74 index (high)Oct 20, 2022: 59 index (low)Oct 22, 2022: 45 index (low)Oct 25, 2022: 50 index (low)Oct 27, 2022: 66 index (high)Oct 30, 2022: 64 index (high)Nov 1, 2022: 83 index (high)Nov 4, 2022: 67 index (low)Nov 6, 2022: 75 index (high)Nov 11, 2022: 70 index (high)Nov 14, 2022: 69 index (low)Nov 16, 2022: 75 index (high)Nov 19, 2022: 56 index (low)Nov 26, 2022: 72 index (high)Nov 29, 2022: 62 index (low)Dec 1, 2022: 65 index (low)Dec 4, 2022: 65 index (low)Dec 6, 2022: 68 index (high)Dec 9, 2022: 64 index (low)Dec 11, 2022: 215 index (low)Dec 14, 2022: 65 index (low)Dec 19, 2022: 56 index (low)Dec 29, 2022: 56 index (high)Dec 31, 2022: 72 index (low)Jan 3, 2023: 77 index (high)Jan 8, 2023: 71 index (low)Jan 15, 2023: 53 index (low)Jan 18, 2023: 66 index (low)Jan 25, 2023: 71 index (low)Jan 30, 2023: 73 index (high)Feb 7, 2023: 60 index (low)Feb 14, 2023: 60 index (low)Feb 17, 2023: 71 index (low)Feb 19, 2023: 77 index (low)Feb 22, 2023: 74 index (low)Feb 24, 2023: 79 index (high)Feb 27, 2023: 70 index (low)Mar 1, 2023: 70 index (low)Mar 4, 2023: 69 index (low)Mar 6, 2023: 82 index (low)Mar 9, 2023: 66 index (low)Mar 11, 2023: 67 index (low)Mar 16, 2023: 57 index (low)Mar 21, 2023: 57 index (low)Mar 24, 2023: 71 index (low)Mar 29, 2023: 96 index (low)Mar 31, 2023: 64 index (low)Apr 3, 2023: 102 index (low)Apr 5, 2023: 72 index (low)Apr 8, 2023: 86 index (low)Apr 10, 2023: 89 index (low)Apr 13, 2023: 115 index (low)Apr 15, 2023: 85 index (high)Apr 18, 2023: 85 index (low)Apr 20, 2023: 70 index (low)Apr 23, 2023: 123 index (low)Apr 25, 2023: 77 index (low)May 10, 2023: 97 index (high)May 15, 2023: 83 index (low)May 18, 2023: 208 index (low)May 20, 2023: 94 index (high)May 23, 2023: 236 index (low)May 25, 2023: 92 index (high)May 28, 2023: 326 index (low)Jun 2, 2023: 302 index (low)Jun 4, 2023: 112 index (high)Jun 14, 2023: 127 index (high)Jun 24, 2023: 169 index (high)Jun 27, 2023: 250 index (low)Jun 29, 2023: 115 index (high)Jul 2, 2023: 213 index (low)Jul 4, 2023: 116 index (high)Jul 24, 2023: 132 index (high)Aug 1, 2023: 131 index (low)Aug 3, 2023: 110 index (high)Aug 8, 2023: 105 index (high)Aug 11, 2023: 106 index (low)Aug 13, 2023: 97 index (high)Aug 23, 2023: 95 index (high)Aug 26, 2023: 134 index (low)Aug 28, 2023: 94 index (high)Sep 5, 2023: 95 index (high)Sep 7, 2023: 99 index (high)Sep 10, 2023: 90 index (high)Sep 12, 2023: 95 index (high)Sep 15, 2023: 82 index (high)Sep 17, 2023: 80 index (high)Sep 20, 2023: 96 index (low)Sep 22, 2023: 80 index (high)Sep 25, 2023: 92 index (high)Sep 30, 2023: 88 index (high)Oct 2, 2023: 93 index (high)Oct 5, 2023: 84 index (high)Oct 7, 2023: 77 index (high)Oct 10, 2023: 77 index (low)Oct 15, 2023: 82 index (low)Oct 17, 2023: 68 index (low)Oct 20, 2023: 57 index (high)Oct 27, 2023: 80 index (high)Oct 30, 2023: 75 index (high)Nov 1, 2023: 70 index (low)Nov 4, 2023: 92 index (low)Nov 6, 2023: 68 index (high)Nov 9, 2023: 75 index (high)Nov 11, 2023: 71 index (high)Nov 19, 2023: 75 index (high)Nov 21, 2023: 79 index (low)Nov 26, 2023: 82 index (high)Dec 6, 2023: 62 index (high)Dec 9, 2023: 76 index (low)Dec 19, 2023: 63 index (low)Dec 29, 2023: 68 index (low)Dec 31, 2023: 69 index (high)Jan 5, 2024: 70 index (high)Jan 10, 2024: 68 index (low)Jan 28, 2024: 79 index (low)Jan 30, 2024: 63 index (high)Feb 2, 2024: 78 index (low)Feb 7, 2024: 61 index (low)Feb 12, 2024: 70 index (low)Feb 14, 2024: 69 index (low)Feb 22, 2024: 62 index (high)Feb 27, 2024: 69 index (low)Mar 8, 2024: 72 index (low)Mar 13, 2024: 87 index (low)Mar 15, 2024: 87 index (low)Mar 20, 2024: 74 index (high)Mar 25, 2024: 84 index (low)Apr 4, 2024: 59 index (low)Apr 9, 2024: 89 index (low)Apr 12, 2024: 100 index (low)Apr 14, 2024: 83 index (high)Apr 17, 2024: 117 index (low)Apr 19, 2024: 95 index (high)Apr 24, 2024: 83 index (high)May 2, 2024: 102 index (high)May 4, 2024: 90 index (high)May 9, 2024: 87 index (low)May 14, 2024: 92 index (low)May 24, 2024: 97 index (high)May 27, 2024: 137 index (low)May 29, 2024: 87 index (high)Jun 3, 2024: 90 index (low)Jun 6, 2024: 237 index (low)Jun 8, 2024: 113 index (high)Jun 18, 2024: 100 index (low)Jun 21, 2024: 282 index (low)Jun 28, 2024: 111 index (high)Jul 3, 2024: 127 index (high)Jul 6, 2024: 187 index (low)Jul 8, 2024: 122 index (high)Jul 18, 2024: 124 index (high)Jul 23, 2024: 139 index (high)Jul 28, 2024: 123 index (high)Aug 7, 2024: 110 index (high)Aug 12, 2024: 103 index (high)Aug 17, 2024: 93 index (high)Aug 25, 2024: 110 index (low)Aug 27, 2024: 91 index (high)Aug 30, 2024: 125 index (low)Sep 4, 2024: 130 index (low)Sep 6, 2024: 97 index (high)Sep 9, 2024: 108 index (low)Sep 11, 2024: 93 index (high)Sep 21, 2024: 87 index (high)Sep 26, 2024: 84 index (low)Sep 29, 2024: 97 index (low)Oct 1, 2024: 98 index (high)Oct 21, 2024: 79 index (low)Oct 24, 2024: 71 index (low)Oct 29, 2024: 74 index (low)Oct 31, 2024: 74 index (low)Nov 3, 2024: 69 index (low)Nov 8, 2024: 73 index (low)Nov 10, 2024: 75 index (high)Nov 13, 2024: 72 index (low)Nov 18, 2024: 69 index (low)Nov 23, 2024: 50 index (low)Nov 25, 2024: 64 index (high)Nov 28, 2024: 66 index (high)Dec 3, 2024: 49 index (low)Dec 5, 2024: 58 index (high)Dec 8, 2024: 59 index (low)Dec 10, 2024: 72 index (low)Dec 13, 2024: 58 index (low)Dec 15, 2024: 72 index (low)Dec 23, 2024: 62 index (low)Jan 4, 2025: 53 index (low)Jan 9, 2025: 51 index (low)Jan 12, 2025: 59 index (low)Jan 19, 2025: 76 index (low)Jan 27, 2025: 54 index (low)Feb 3, 2025: 77 index (high)Feb 6, 2025: 73 index (high)Feb 13, 2025: 62 index (low)Feb 16, 2025: 54 index (low)Feb 18, 2025: 69 index (low)Feb 21, 2025: 51 index (low)Feb 23, 2025: 54 index (low)Feb 26, 2025: 55 index (low)Feb 28, 2025: 62 index (low)Mar 8, 2025: 56 index (low)Mar 13, 2025: 66 index (low)Mar 15, 2025: 59 index (low)Mar 18, 2025: 57 index (low)Mar 20, 2025: 61 index (low)Mar 27, 2025: 71 index (low)Mar 30, 2025: 101 index (low)Apr 2, 2025: 109 index (low)Apr 4, 2025: 72 index (low)Apr 7, 2025: 92 index (low)Apr 9, 2025: 77 index (low)Apr 12, 2025: 77 index (low)Apr 14, 2025: 70 index (low)Apr 16, 2025: 85 index (low)Apr 17, 2025: 95 index (low)Apr 19, 2025: 80 index (low)Apr 27, 2025: 80 index (low)May 2, 2025: 104 index (low)May 6, 2025: 102 index (high)May 9, 2025: 151 index (low)May 14, 2025: 68 index (low)May 19, 2025: 90 index (low)May 22, 2025: 240 index (low)May 24, 2025: 77 index (low)May 26, 2025: 96 index (low)Jun 8, 2025: 114 index (low)Jun 13, 2025: 88 index (low)Jun 15, 2025: 98 index (low)Jun 18, 2025: 203 index (low)Jun 28, 2025: 137 index (high)Jul 23, 2025: 105 index (low)Jul 25, 2025: 121 index (low)Jul 28, 2025: 116 index (high)Jul 31, 2025: 175 index (low)Aug 2, 2025: 93 index (high)Aug 5, 2025: 152 index (high)Aug 7, 2025: 151 index (high)Aug 12, 2025: 142 index (high)Aug 14, 2025: 130 index (high)Aug 15, 2025: 206 index (low)Aug 17, 2025: 135 index (high)Aug 30, 2025: 104 index (low)Sep 11, 2025: 70 index (high)Sep 14, 2025: 78 index (low)Sep 16, 2025: 74 index (high)Sep 19, 2025: 99 index (low)Sep 21, 2025: 79 index (high)Sep 23, 2025: 81 index (high)Sep 24, 2025: 70 index (high)Sep 26, 2025: 89 index (high)Oct 1, 2025: 75 index (low)Oct 4, 2025: 88 index (low)Oct 13, 2025: 78 index (high)Oct 14, 2025: 75 index (low)Oct 16, 2025: 73 index (high)Oct 19, 2025: 76 index (high)Oct 21, 2025: 80 index (high)Oct 24, 2025: 73 index (low)Oct 26, 2025: 110 index (high)Oct 29, 2025: 74 index (low)Oct 31, 2025: 66 index (high)Nov 2, 2025: 69 index (high)Nov 3, 2025: 63 index (low)Nov 5, 2025: 69 index (high)Nov 8, 2025: 78 index (high)Nov 13, 2025: 59 index (high)Nov 15, 2025: 68 index (high)Nov 18, 2025: 62 index (high)Nov 20, 2025: 54 index (high)Nov 22, 2025: 70 index (high)Nov 23, 2025: 56 index (high)Nov 25, 2025: 73 index (high)Nov 28, 2025: 59 index (low)Nov 30, 2025: 63 index (low)Dec 3, 2025: 65 index (low)Dec 5, 2025: 78 index (high)Dec 8, 2025: 93 index (low)Dec 10, 2025: 68 index (low)Dec 13, 2025: 67 index (low)Dec 20, 2025: 64 index (low)Dec 23, 2025: 68 index (low)Dec 25, 2025: 76 index (high)Dec 28, 2025: 71 index (high)Dec 30, 2025: 67 index (low)Jan 4, 2026: 59 index (low)Jan 7, 2026: 75 index (high)Jan 9, 2026: 75 index (low)Jan 19, 2026: 54 index (low)Jan 22, 2026: 64 index (high)Jan 24, 2026: 78 index (high)Jan 27, 2026: 51 index (low)Jan 29, 2026: 51 index (low)Feb 1, 2026: 46 index (low)Feb 3, 2026: 62 index (low)Feb 6, 2026: 60 index (low)Feb 8, 2026: 61 index (low)Feb 13, 2026: 84 index (low)Feb 16, 2026: 79 index (low)Feb 18, 2026: 69 index (low)Feb 21, 2026: 82 index (high)Feb 23, 2026: 58 index (low)Feb 26, 2026: 68 index (low)Mar 3, 2026: 63 index (low)Mar 5, 2026: 78 index (low)Mar 8, 2026: 81 index (low)Mar 10, 2026: 75 index (low)Mar 15, 2026: 93 index (low)Mar 20, 2026: 63 index (low)Mar 25, 2026: 83 index (low)Apr 4, 2026: 92 index (low)Apr 12, 2026: 74 index (low)Apr 14, 2026: 76 index (low)Apr 17, 2026: 100 index (low)Apr 21, 2026: 68 index (low)Apr 22, 2026: 94 index (low)Apr 24, 2026: 120 index (low)Apr 29, 2026: 78 index (high)May 9, 2026: 86 index (low)May 14, 2026: 129 index (low)May 24, 2026: 122 index (low)Jun 8, 2026: 90 index (high)Jun 11, 2026: 239 index (low)Jun 13, 2026: 112 index (high)Jun 20, 2026: 117 index (high)Jun 23, 2026: 164 index (low)Jun 28, 2026: 106 index (high)Jul 3, 2026: 119 index (high)Jul 6, 2026: 261 index (low)Jul 8, 2026: 110 index (high)Jul 10, 2026: 123 index (high)Jul 20, 2026: 110 index (low)Jul 23, 2026: 98 index (high)Aug 9, 2026: 113 index (high)Aug 12, 2026: 109 index (high)Aug 17, 2026: 89 index (high)Aug 22, 2026: 128 index (low)Aug 27, 2026: 112 index (high)Sep 4, 2026: 159 index (low)Sep 6, 2026: 123 index (high)Sep 9, 2026: 124 index (high)Sep 14, 2026: 107 index (high)Sep 19, 2026: 107 index (high)Sep 24, 2026: 121 index (low)Sep 26, 2026: 77 index (high)
Algae signal (red-edge index), index. One dot per cloud-free scene; dates are local to the lake.

When it peaks

MonthClear scenesMedian, indexScenes rated high
Jan627040%
Feb807324%
Mar807811%
Apr708813%
May469726%
Jun4011460%
Jul4912180%
Aug6711069%
Sep789962%
Oct688457%
Nov807056%
Dec747034%

By year (median / highest): 2016: 85 / 137 (20 scenes) · 2017: 78 / 136 (37 scenes) · 2018: 88 / 167 (81 scenes) · 2019: 89 / 140 (82 scenes) · 2020: 89 / 160 (85 scenes) · 2021: 78 / 152 (73 scenes) · 2022: 83 / 264 (95 scenes) · 2023: 82 / 326 (89 scenes) · 2024: 87 / 282 (74 scenes) · 2025: 76 / 240 (98 scenes) · 2026: 87 / 261 (60 scenes).

What a satellite can and can’t tell you

Satellites see only the surface layer, only on cloud-free days, and only away from the shoreline. They estimate algae; they do not measure toxins, and they can’t see what the lake bottom is doing. A clear reading is not a safety clearance.

For current conditions and health advisories, check the Florida DEP algal bloom page and the Florida Department of Health. If a person or pet may have been exposed to a bloom, call a doctor, a veterinarian, or Poison Help at 1-800-222-1222.

Source: Sentinel-2 MSI (ESA Copernicus), Red-edge cyanobacteria index (CI-cyano); a scene counts as a bloom when the index is above 50 and stays high relative to turbidity (bloom rule v1 (2026-10)). Snapshot exported Oct 9, 2026.

Worried about your own pond or lake?

One pond? Start with a free satellite read (ponds and lakes 1 acre and up), or get a $179 Pond Health Check: a mail-in kit for your water and your pond bottom, 14 lab measurements, and a scientist's call with a diagnosis and a ranked plan. Bigger or higher-stakes water gets a custom program, quoted per site.

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Pond Health Check · $179 Get a free readTalk to a scientist