Water temperature in San Juan
57.9
°F
November 19, 09:49
Trend:
increasingYesterday:
57.2°FTomorrow:
58.0°F
Sunrise:
Sunset:
Day Length:
12 h. 52 min.San Juan in November
Minimum:
58.4°FAverage:
65.5°FMaximum:
68.9°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 57.9°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.5°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 65.4°F on 2016, while the historical minimum was 55.9°F on 2022.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Nov 5 | 58.4°F | 59.2°F | 59.2°F |
| Nov 6 | 58.6°F | 59.3°F | 59.5°F |
| Nov 7 | 58.7°F | 57.2°F | 59.2°F |
| Nov 8 | 57.4°F | 58.4°F | 59.5°F |
| Nov 9 | 57.1°F | 58.4°F | 59.5°F |
| Nov 10 | 56.3°F | 58.3°F | 59.4°F |
| Nov 11 | 56.4°F | 58.7°F | 59.8°F |
| Nov 12 | 57.3°F | 58.8°F | 59.8°F |
| Nov 13 | 58.6°F | 59.2°F | 60.2°F |
| Nov 14 | 57.4°F | 58.9°F | 60.0°F |
| Nov 15 | 58.0°F | 60.8°F | 60.2°F |
| Nov 16 | 57.8°F | 61.1°F | 60.4°F |
| Nov 17 | 57.7°F | 61.3°F | 60.4°F |
| Nov 18 | 57.2°F | 63.0°F | 60.7°F |
| Nov 19 | 57.9°F | 62.5°F | 60.4°F |
| Nov 20 | 58.0°F | 62.9°F | 60.5°F |
| Nov 21 | 58.4°F | 64.0°F | 60.9°F |
| Nov 22 | 58.5°F | 64.4°F | 61.0°F |
| Nov 23 | 59.1°F | 64.1°F | 61.6°F |
| Nov 24 | 59.4°F | 63.6°F | 61.9°F |
| Nov 25 | 59.6°F | 63.9°F | 62.1°F |
| Nov 26 | 59.3°F | 61.8°F | 61.8°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.