Water temperature in San Juan
70.2
°F
October 30, 15:27
Trend:
stableYesterday:
69.9°FTomorrow:
70.1°F
Sunrise:
Sunset:
Day Length:
12 h. 39 min.San Juan in November
Minimum:
58.4°FAverage:
65.2°FMaximum:
68.9°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 70.2°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 12.1°F higher 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 maximum temperature for this date. The maximum temperature recorded for this date was 60.9°F on 2023, while the historical minimum was 55.0°F on 2022.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Oct 16 | 70.6°F | 59.9°F | 59.1°F |
| Oct 17 | 69.9°F | 60.0°F | 59.3°F |
| Oct 18 | 69.8°F | 60.2°F | 59.4°F |
| Oct 19 | 70.2°F | 59.8°F | 59.1°F |
| Oct 20 | 69.8°F | 59.1°F | 59.5°F |
| Oct 21 | 69.6°F | 58.6°F | 59.2°F |
| Oct 22 | 70.0°F | 58.5°F | 59.3°F |
| Oct 23 | 68.7°F | 59.1°F | 59.2°F |
| Oct 24 | 68.9°F | 58.8°F | 59.2°F |
| Oct 25 | 67.6°F | 59.1°F | 58.9°F |
| Oct 26 | 68.7°F | 59.4°F | 58.9°F |
| Oct 27 | 69.0°F | 58.6°F | 59.1°F |
| Oct 28 | 70.1°F | 57.1°F | 58.1°F |
| Oct 29 | 69.9°F | 57.0°F | 57.8°F |
| Oct 30 | 70.2°F | 58.4°F | 58.2°F |
| Oct 31 | 70.1°F | 58.0°F | 58.0°F |
| Nov 1 | 70.3°F | 57.3°F | 58.2°F |
| Nov 2 | 70.6°F | 58.8°F | 58.6°F |
| Nov 3 | 70.8°F | 59.1°F | 58.7°F |
| Nov 4 | 70.8°F | 58.9°F | 58.7°F |
| Nov 5 | 71.0°F | 58.4°F | 58.9°F |
| Nov 6 | 71.4°F | 58.6°F | 59.3°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.