Water temperature in San Juan
85.3
°F
November 21, 20:30
Trend:
decreasingYesterday:
86.0°FTomorrow:
85.0°F
Sunrise:
Sunset:
Day Length:
11 h. 40 min.San Juan in November
Minimum:
79.3°FAverage:
81.4°FMaximum:
82.8°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 85.3°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 0.7°F higher 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 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 85.5°F on 2021, while the historical minimum was 83.4°F on 2018.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Nov 7 | 85.3°F | 86.7°F | 84.6°F |
| Nov 8 | 85.4°F | 86.2°F | 84.6°F |
| Nov 9 | 85.6°F | 86.0°F | 84.8°F |
| Nov 10 | 85.5°F | 85.9°F | 84.7°F |
| Nov 11 | 85.6°F | 85.5°F | 84.7°F |
| Nov 12 | 85.5°F | 86.1°F | 84.6°F |
| Nov 13 | 85.4°F | 85.7°F | 84.6°F |
| Nov 14 | 85.5°F | 85.8°F | 84.7°F |
| Nov 15 | 85.6°F | 85.7°F | 84.7°F |
| Nov 16 | 85.5°F | 85.4°F | 84.8°F |
| Nov 17 | 85.1°F | 85.1°F | 84.6°F |
| Nov 18 | 86.0°F | 84.8°F | 84.4°F |
| Nov 19 | 85.8°F | 84.8°F | 84.5°F |
| Nov 20 | 86.0°F | 85.0°F | 84.6°F |
| Nov 21 | 85.3°F | 85.0°F | 84.6°F |
| Nov 22 | 85.0°F | 84.5°F | 84.3°F |
| Nov 23 | 85.0°F | 85.0°F | 84.3°F |
| Nov 24 | 85.1°F | 84.9°F | 84.4°F |
| Nov 25 | 85.1°F | 84.2°F | 84.4°F |
| Nov 26 | 84.9°F | 84.1°F | 84.2°F |
| Nov 27 | 84.8°F | 84.1°F | 84.1°F |
| Nov 28 | 84.8°F | 84.5°F | 84.1°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.
