Water temperature in San Juan
68.9
°F
October 24, 11:19
Trend:
stableYesterday:
68.7°FTomorrow:
68.7°F
Sunrise:
Sunset:
Day Length:
12 h. 34 min.San Juan in October
Minimum:
60.9°FAverage:
65.6°FMaximum:
69.4°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 68.9°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 10.7°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 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 61.1°F on 2023, while the historical minimum was 54.6°F on 2022.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Oct 10 | 68.0°F | 57.2°F | 58.8°F |
| Oct 11 | 68.1°F | 57.7°F | 58.7°F |
| Oct 12 | 69.5°F | 57.9°F | 58.8°F |
| Oct 13 | 68.8°F | 57.5°F | 58.9°F |
| Oct 14 | 69.3°F | 60.5°F | 59.2°F |
| Oct 15 | 69.3°F | 60.7°F | 59.1°F |
| 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 | 58.2°F |
| Oct 25 | 68.7°F | 59.1°F | 58.1°F |
| Oct 26 | 68.6°F | 59.4°F | 58.0°F |
| Oct 27 | 68.8°F | 58.6°F | 58.1°F |
| Oct 28 | 68.7°F | 57.1°F | 58.1°F |
| Oct 29 | 68.5°F | 57.0°F | 57.8°F |
| Oct 30 | 68.8°F | 58.4°F | 58.2°F |
| Oct 31 | 68.7°F | 58.0°F | 58.0°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.