Water temperature in San Juan
61.4
°F
April 25, 02:07
Trend:
increasingYesterday:
61.4°FTomorrow:
61.5°F
Sunrise:
Sunset:
Day Length:
11 h. 37 min.San Juan in May
Minimum:
60.3°FAverage:
65.3°FMaximum:
68.6°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 61.4°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 1.6°F lower 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 stay about the same.Recent sea temperature and forecast
The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 67.2°F on 2023, while the historical minimum was 58.2°F on 2021.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Apr 11 | 61.1°F | 65.7°F | 63.5°F |
| Apr 12 | 62.1°F | 65.7°F | 63.6°F |
| Apr 13 | 63.1°F | 65.6°F | 64.2°F |
| Apr 14 | 61.0°F | 64.4°F | 63.5°F |
| Apr 15 | 60.5°F | 64.4°F | 63.4°F |
| Apr 16 | 58.6°F | 63.4°F | 63.2°F |
| Apr 17 | 58.8°F | 62.8°F | 62.9°F |
| Apr 18 | 58.5°F | 60.5°F | 62.8°F |
| Apr 19 | 59.5°F | 63.1°F | 63.2°F |
| Apr 20 | 59.8°F | 63.6°F | 63.2°F |
| Apr 21 | 62.0°F | 64.1°F | 63.2°F |
| Apr 22 | 61.9°F | 64.9°F | 63.4°F |
| Apr 23 | 61.6°F | 63.6°F | 63.4°F |
| Apr 24 | 61.4°F | 63.0°F | 63.0°F |
| Apr 25 | 61.4°F | 64.5°F | 63.0°F |
| Apr 26 | 61.5°F | 64.0°F | 63.1°F |
| Apr 27 | 61.1°F | 61.4°F | 62.7°F |
| Apr 28 | 60.8°F | 60.6°F | 62.3°F |
| Apr 29 | 60.5°F | 60.3°F | 62.0°F |
| Apr 30 | 60.6°F | 60.9°F | 62.2°F |
| May 1 | 60.4°F | 61.2°F | 62.0°F |
| May 2 | 60.0°F | 62.3°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.