Water temperature in San Juan
63.6
°F
April 23, 00:51
Trend:
stableYesterday:
63.6°FTomorrow:
63.1°F
Sunrise:
Sunset:
Day Length:
11 h. 39 min.San Juan in April
Minimum:
61.2°FAverage:
65.0°FMaximum:
68.5°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 63.6°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 0.5°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.Recent sea temperature and forecast
Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 69.3°F on 2023, while the historical minimum was 59.8°F on 2021.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Apr 9 | 63.2°F | 63.1°F | 63.9°F |
| Apr 10 | 64.6°F | 60.4°F | 63.5°F |
| Apr 11 | 63.7°F | 61.1°F | 63.3°F |
| Apr 12 | 66.4°F | 62.1°F | 63.6°F |
| Apr 13 | 63.3°F | 63.1°F | 63.8°F |
| Apr 14 | 65.1°F | 61.0°F | 63.4°F |
| Apr 15 | 63.5°F | 60.5°F | 63.2°F |
| Apr 16 | 63.4°F | 58.6°F | 62.9°F |
| Apr 17 | 63.2°F | 58.8°F | 62.6°F |
| Apr 18 | 63.0°F | 58.5°F | 62.5°F |
| Apr 19 | 64.1°F | 59.5°F | 63.1°F |
| Apr 20 | 66.3°F | 59.8°F | 63.3°F |
| Apr 21 | 62.6°F | 62.0°F | 63.0°F |
| Apr 22 | 63.6°F | 61.9°F | 63.1°F |
| Apr 23 | 63.6°F | 61.6°F | 63.2°F |
| Apr 24 | 63.1°F | 61.4°F | 62.6°F |
| Apr 25 | 62.8°F | 59.3°F | 62.4°F |
| Apr 26 | 62.6°F | 57.9°F | 62.2°F |
| Apr 27 | 62.3°F | 58.6°F | 61.9°F |
| Apr 28 | 62.2°F | 59.2°F | 61.7°F |
| Apr 29 | 61.8°F | 57.5°F | 61.3°F |
| Apr 30 | 62.1°F | 58.6°F | 61.6°F |
* actual - actual temperature values
** forecast - projected values for the next week
Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.
Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.