Water temperature in San Juan
84.9
°F
September 7, 18:55
Trend:
stableYesterday:
84.8°FTomorrow:
84.7°F
Sunrise:
Sunset:
Day Length:
12 h. 15 min.San Juan in September
Minimum:
81.0°FAverage:
82.3°FMaximum:
83.5°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 84.9°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 lower 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
The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 86.2°F on 2017, while the historical minimum was 84.5°F on 2019.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Aug 24 | 85.4°F | 84.9°F | 85.0°F |
| Aug 25 | 84.9°F | 85.2°F | 85.0°F |
| Aug 26 | 84.8°F | 85.0°F | 85.0°F |
| Aug 27 | 85.0°F | 85.0°F | 85.0°F |
| Aug 28 | 84.8°F | 85.0°F | 85.1°F |
| Aug 29 | 84.8°F | 85.0°F | 85.1°F |
| Aug 30 | 84.8°F | 84.8°F | 85.2°F |
| Aug 31 | 84.6°F | 84.8°F | 85.0°F |
| Sep 1 | 84.6°F | 84.7°F | 84.9°F |
| Sep 2 | 84.0°F | 84.6°F | 84.9°F |
| Sep 3 | 84.4°F | 85.1°F | 85.0°F |
| Sep 4 | 84.5°F | 84.7°F | 85.0°F |
| Sep 5 | 84.6°F | 84.7°F | 85.1°F |
| Sep 6 | 84.8°F | 84.5°F | 85.1°F |
| Sep 7 | 84.9°F | 84.6°F | 85.2°F |
| Sep 8 | 84.7°F | 84.4°F | 85.0°F |
| Sep 9 | 84.8°F | 84.7°F | 85.2°F |
| Sep 10 | 84.7°F | 84.5°F | 85.0°F |
| Sep 11 | 84.6°F | 84.3°F | 84.9°F |
| Sep 12 | 84.4°F | 84.3°F | 84.7°F |
| Sep 13 | 84.3°F | 84.2°F | 84.7°F |
| Sep 14 | 84.2°F | 84.3°F | 84.5°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.
Popular neighboring cities and resorts
| City | Water temperature* | Distance** |
|---|---|---|
| San Francisco |
85.0°F
|
14mi |
| San Jose |
84.9°F
|
27mi |
| San Francisco |
85.8°F
|
38mi |
| San Jose |
86.6°F
|
51mi |
| San Francisco |
86.2°F
|
55mi |
* current water temperature in this city
** straight line distance from San Juan