Water temperature in San Juan
84.1
°F
November 18, 06:22
Trend:
decreasingYesterday:
84.2°FTomorrow:
84.0°F
Sunrise:
Sunset:
Day Length:
11 h. 13 min.San Juan in November
Minimum:
80.4°FAverage:
80.9°FMaximum:
81.9°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 84.1°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 0.2°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
Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 85.0°F on 2024, while the historical minimum was 82.9°F on 2017.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Nov 4 | 84.7°F | 85.6°F | 84.5°F |
| Nov 5 | 84.6°F | 85.9°F | 84.5°F |
| Nov 6 | 84.7°F | 85.8°F | 84.3°F |
| Nov 7 | 84.6°F | 85.4°F | 84.3°F |
| Nov 8 | 84.9°F | 85.2°F | 84.2°F |
| Nov 9 | 84.7°F | 85.0°F | 84.1°F |
| Nov 10 | 84.3°F | 85.0°F | 84.1°F |
| Nov 11 | 84.4°F | 84.9°F | 84.0°F |
| Nov 12 | 84.4°F | 84.9°F | 84.0°F |
| Nov 13 | 84.4°F | 84.9°F | 84.0°F |
| Nov 14 | 84.3°F | 84.9°F | 83.9°F |
| Nov 15 | 84.3°F | 85.5°F | 84.1°F |
| Nov 16 | 84.3°F | 85.0°F | 84.0°F |
| Nov 17 | 84.2°F | 85.0°F | 83.9°F |
| Nov 18 | 84.1°F | 85.0°F | 83.9°F |
| Nov 19 | 84.0°F | 84.7°F | 83.8°F |
| Nov 20 | 84.0°F | 84.5°F | 83.7°F |
| Nov 21 | 83.9°F | 84.5°F | 83.7°F |
| Nov 22 | 83.9°F | 84.7°F | 83.7°F |
| Nov 23 | 83.8°F | 84.5°F | 83.5°F |
| Nov 24 | 83.8°F | 84.9°F | 83.5°F |
| Nov 25 | 83.7°F | 85.0°F | 83.5°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.