Water temperature in San Juan
86.3
°F
October 30, 17:59
Trend:
decreasingYesterday:
86.4°FTomorrow:
86.2°F
Sunrise:
Sunset:
Day Length:
11 h. 49 min.San Juan in November
Minimum:
80.2°FAverage:
81.9°FMaximum:
83.9°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 86.3°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 1.2°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 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 86.4°F on 2023, while the historical minimum was 83.7°F on 2016.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Oct 16 | 86.0°F | 85.5°F | 85.2°F |
| Oct 17 | 85.8°F | 85.4°F | 85.1°F |
| Oct 18 | 86.2°F | 85.4°F | 85.3°F |
| Oct 19 | 85.6°F | 85.3°F | 85.3°F |
| Oct 20 | 86.0°F | 85.4°F | 85.3°F |
| Oct 21 | 86.1°F | 85.7°F | 85.4°F |
| Oct 22 | 86.2°F | 85.6°F | 85.5°F |
| Oct 23 | 85.9°F | 85.4°F | 85.4°F |
| Oct 24 | 85.9°F | 85.5°F | 85.4°F |
| Oct 25 | 86.0°F | 85.4°F | 85.3°F |
| Oct 26 | 85.9°F | 85.2°F | 85.3°F |
| Oct 27 | 86.1°F | 85.1°F | 85.2°F |
| Oct 28 | 86.4°F | 85.3°F | 85.1°F |
| Oct 29 | 86.4°F | 85.2°F | 85.2°F |
| Oct 30 | 86.3°F | 85.1°F | 85.0°F |
| Oct 31 | 86.2°F | 85.0°F | 84.9°F |
| Nov 1 | 86.1°F | 85.5°F | 84.9°F |
| Nov 2 | 86.2°F | 86.0°F | 84.9°F |
| Nov 3 | 86.2°F | 85.9°F | 84.9°F |
| Nov 4 | 86.2°F | 85.7°F | 85.0°F |
| Nov 5 | 86.0°F | 85.7°F | 84.8°F |
| Nov 6 | 85.9°F | 84.9°F | 84.7°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.
