Water temperature in San Juan
86.9
°F
June 7, 20:45
Trend:
increasingYesterday:
86.9°FTomorrow:
87.1°F
Sunrise:
Sunset:
Day Length:
12 h. 53 min.San Juan in June
Minimum:
78.3°FAverage:
80.6°FMaximum:
82.3°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 86.9°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 0.4°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 rise a bit.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 88.7°F on 2020, while the historical minimum was 85.6°F on 2023.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| May 24 | 87.7°F | 88.1°F | 86.7°F |
| May 25 | 87.4°F | 87.8°F | 86.8°F |
| May 26 | 87.7°F | 87.6°F | 87.0°F |
| May 27 | 88.0°F | 87.4°F | 87.1°F |
| May 28 | 87.7°F | 87.1°F | 87.2°F |
| May 29 | 87.4°F | 86.7°F | 87.4°F |
| May 30 | 86.7°F | 86.5°F | 87.3°F |
| May 31 | 86.6°F | 86.3°F | 87.4°F |
| Jun 1 | 86.6°F | 87.0°F | 87.4°F |
| Jun 2 | 87.2°F | 87.4°F | 87.4°F |
| Jun 3 | 87.6°F | 87.6°F | 87.5°F |
| Jun 4 | 87.4°F | 87.5°F | 87.5°F |
| Jun 5 | 87.2°F | 87.3°F | 87.5°F |
| Jun 6 | 86.9°F | 87.2°F | 87.4°F |
| Jun 7 | 86.9°F | 87.0°F | 87.3°F |
| Jun 8 | 87.1°F | 87.4°F | 87.5°F |
| Jun 9 | 86.9°F | 87.5°F | 87.3°F |
| Jun 10 | 86.9°F | 87.2°F | 87.3°F |
| Jun 11 | 86.8°F | 87.2°F | 87.2°F |
| Jun 12 | 87.0°F | 88.1°F | 87.4°F |
| Jun 13 | 86.9°F | 88.1°F | 87.3°F |
| Jun 14 | 86.9°F | 88.4°F | 87.3°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.