Water temperature in San Juan
66.8
°F
June 12, 03:36
Trend:
increasingYesterday:
66.3°FTomorrow:
66.8°F
Sunrise:
Sunset:
Day Length:
11 h. 13 min.San Juan in June
Minimum:
61.0°FAverage:
65.3°FMaximum:
69.5°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 66.8°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 6.7°F higher 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 is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 66.5°F on 2023, while the historical minimum was 57.0°F on 2022.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| May 29 | 63.5°F | 60.3°F | 60.8°F |
| May 30 | 63.1°F | 58.7°F | 60.8°F |
| May 31 | 64.5°F | 59.1°F | 60.9°F |
| Jun 1 | 65.4°F | 59.0°F | 61.1°F |
| Jun 2 | 65.0°F | 59.4°F | 60.7°F |
| Jun 3 | 66.5°F | 58.9°F | 61.2°F |
| Jun 4 | 65.9°F | 59.4°F | 60.9°F |
| Jun 5 | 68.4°F | 59.5°F | 61.4°F |
| Jun 6 | 67.4°F | 60.0°F | 61.1°F |
| Jun 7 | 65.8°F | 60.7°F | 61.0°F |
| Jun 8 | 65.5°F | 60.0°F | 61.0°F |
| Jun 9 | 65.4°F | 59.9°F | 60.7°F |
| Jun 10 | 66.1°F | 60.0°F | 60.8°F |
| Jun 11 | 66.3°F | 60.2°F | 60.8°F |
| Jun 12 | 66.8°F | 57.8°F | 60.0°F |
| Jun 13 | 66.8°F | 58.0°F | 60.0°F |
| Jun 14 | 66.8°F | 58.1°F | 60.1°F |
| Jun 15 | 67.1°F | 57.6°F | 60.4°F |
| Jun 16 | 67.2°F | 58.0°F | 60.4°F |
| Jun 17 | 66.6°F | 58.7°F | 59.9°F |
| Jun 18 | 66.7°F | 60.6°F | 60.0°F |
| Jun 19 | 66.7°F | 60.6°F | 60.0°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.