Water temperature in San Juan
63.2
°F
May 13, 12:40
Trend:
increasingYesterday:
61.9°FTomorrow:
63.4°F
Sunrise:
Sunset:
Day Length:
11 h. 26 min.San Juan in May
Minimum:
60.3°FAverage:
64.9°FMaximum:
68.6°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 63.2°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 1.9°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. 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 65.9°F on 2017, while the historical minimum was 56.6°F on 2022.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Apr 29 | 63.3°F | 57.5°F | 61.5°F |
| Apr 30 | 62.9°F | 58.6°F | 61.7°F |
| May 1 | 62.0°F | 59.6°F | 61.6°F |
| May 2 | 62.6°F | 60.0°F | 61.3°F |
| May 3 | 62.6°F | 58.0°F | 61.4°F |
| May 4 | 61.6°F | 60.6°F | 61.7°F |
| May 5 | 62.4°F | 59.7°F | 61.5°F |
| May 6 | 62.7°F | 60.0°F | 61.9°F |
| May 7 | 64.0°F | 60.0°F | 61.9°F |
| May 8 | 63.4°F | 59.3°F | 61.6°F |
| May 9 | 62.5°F | 58.6°F | 61.6°F |
| May 10 | 64.1°F | 58.8°F | 61.8°F |
| May 11 | 62.6°F | 58.8°F | 61.9°F |
| May 12 | 61.9°F | 58.7°F | 61.7°F |
| May 13 | 63.2°F | 59.1°F | 61.3°F |
| May 14 | 63.4°F | 59.3°F | 61.4°F |
| May 15 | 63.2°F | 59.8°F | 61.3°F |
| May 16 | 63.1°F | 59.7°F | 61.2°F |
| May 17 | 63.1°F | 60.5°F | 61.2°F |
| May 18 | 63.1°F | 61.3°F | 61.2°F |
| May 19 | 62.7°F | 58.6°F | 60.8°F |
| May 20 | 63.0°F | 59.4°F | 61.1°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.