San Juan Water Temperature
(Today) 2024
The water will feel unpleasantly warm (stifling). May be a little too warm for any kind of activity, particularly if sunny.
*Live data from San Juan, PR: 30.5°C / 86.9°F
Current weather
(overcast clouds)
The measurements for the water temperature in San Juan, San Juan are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.
*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.
Water temp by month
Monthly average max / min water temperatures
The graph below shows the range of monthly San Juan water temperature derived from many years of historical sea surface temperature data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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Min °C | 25.4 | 24.9 | 25.4 | 25.5 | 26.4 | 27.1 | 27.4 | 28.2 | 28.5 | 28.2 | 28 | 27 |
Max °C | 27.3 | 26.8 | 26.4 | 27.7 | 28 | 29.1 | 29.6 | 29.8 | 30.2 | 29.8 | 29 | 28.3 |
Min °F | 78.4 | 77.5 | 78.1 | 78.8 | 80.2 | 81.6 | 82.2 | 83.4 | 83.9 | 83.4 | 82.8 | 81.1 |
Max °F | 80.3 | 79.4 | 79.1 | 81 | 81.8 | 83.6 | 84.4 | 85 | 85.6 | 85 | 83.8 | 82.4 |
The warmest water temperature is in September with an average around 84.7°F / 29.3°C. The coldest month is February with an average water temperature of 78.4°F / 25.8°C.
7 day tide forecast for San Juan
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*These tide times are estimates based on the nearest accurate location (San Juan, Puerto Rico) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.