Water temperature in San Juan
85.7
°F
August 6, 05:09
Trend:
decreasingYesterday:
85.8°FTomorrow:
85.6°F
Sunrise:
Sunset:
Day Length:
12 h. 45 min.San Juan in August
Minimum:
81.8°FAverage:
82.6°FMaximum:
83.5°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 85.7°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 0.3°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 falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 86.8°F on 2016, while the historical minimum was 84.5°F on 2018.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Jul 23 | 87.1°F | 84.8°F | 86.0°F |
| Jul 24 | 86.7°F | 84.7°F | 85.8°F |
| Jul 25 | 86.3°F | 84.7°F | 85.6°F |
| Jul 26 | 86.9°F | 84.5°F | 85.6°F |
| Jul 27 | 86.7°F | 84.5°F | 85.6°F |
| Jul 28 | 86.6°F | 84.5°F | 85.6°F |
| Jul 29 | 87.1°F | 84.5°F | 85.6°F |
| Jul 30 | 86.5°F | 84.6°F | 85.5°F |
| Jul 31 | 85.9°F | 84.6°F | 85.4°F |
| Aug 1 | 86.2°F | 84.5°F | 85.4°F |
| Aug 2 | 86.6°F | 84.3°F | 85.3°F |
| Aug 3 | 86.3°F | 84.8°F | 85.4°F |
| Aug 4 | 86.3°F | 84.8°F | 85.4°F |
| Aug 5 | 85.8°F | 85.7°F | 85.5°F |
| Aug 6 | 85.7°F | 85.3°F | 85.4°F |
| Aug 7 | 85.6°F | 84.9°F | 85.3°F |
| Aug 8 | 85.5°F | 84.9°F | 85.2°F |
| Aug 9 | 85.6°F | 85.0°F | 85.3°F |
| Aug 10 | 85.5°F | 84.9°F | 85.2°F |
| Aug 11 | 85.3°F | 84.7°F | 85.0°F |
| Aug 12 | 85.0°F | 84.5°F | 84.8°F |
| Aug 13 | 84.9°F | 84.5°F | 84.6°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.