Water temperature in San Juan
85.0
°F
October 11, 04:37
Trend:
increasingYesterday:
84.9°FTomorrow:
85.1°F
Sunrise:
Sunset:
Day Length:
11 h. 56 min.San Juan in October
Minimum:
80.7°FAverage:
82.0°FMaximum:
83.2°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 85.0°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 lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.Recent sea temperature and forecast
Today's water temperature slightly varies from the average of the past two weeks. 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 85.9°F on 2023, 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 |
|---|---|---|---|
| Sep 27 | 85.0°F | 85.4°F | 84.6°F |
| Sep 28 | 85.1°F | 85.2°F | 84.7°F |
| Sep 29 | 84.9°F | 85.1°F | 84.8°F |
| Sep 30 | 84.7°F | 85.0°F | 84.6°F |
| Oct 1 | 83.9°F | 85.0°F | 84.5°F |
| Oct 2 | 85.2°F | 84.9°F | 84.7°F |
| Oct 3 | 85.2°F | 84.8°F | 84.7°F |
| Oct 4 | 85.0°F | 84.6°F | 84.8°F |
| Oct 5 | 84.9°F | 84.7°F | 84.7°F |
| Oct 6 | 85.2°F | 84.5°F | 84.8°F |
| Oct 7 | 85.1°F | 84.7°F | 84.8°F |
| Oct 8 | 85.1°F | 85.0°F | 84.9°F |
| Oct 9 | 85.1°F | 85.4°F | 85.1°F |
| Oct 10 | 84.9°F | 85.5°F | 85.1°F |
| Oct 11 | 85.0°F | 85.6°F | 85.2°F |
| Oct 12 | 85.1°F | 85.9°F | 85.3°F |
| Oct 13 | 84.9°F | 85.7°F | 85.1°F |
| Oct 14 | 84.9°F | 85.5°F | 85.1°F |
| Oct 15 | 84.8°F | 85.6°F | 85.0°F |
| Oct 16 | 84.7°F | 85.5°F | 84.8°F |
| Oct 17 | 84.6°F | 85.9°F | 84.8°F |
| Oct 18 | 84.7°F | 85.7°F | 84.8°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 |
84.6°F
|
14mi |
| San Jose |
84.8°F
|
27mi |
| San Francisco |
84.5°F
|
38mi |
| San Jose |
85.3°F
|
51mi |
| San Francisco |
84.8°F
|
55mi |
* current water temperature in this city
** straight line distance from San Juan