Water temperature in San Juan
86.7
°F
May 16, 23:18
Trend:
increasingYesterday:
86.2°FTomorrow:
87.0°F
Sunrise:
Sunset:
Day Length:
12 h. 46 min.San Juan in May
Minimum:
79.9°FAverage:
80.9°FMaximum:
82.7°FSea water temperature in San Juan today
As of now, in San Juan, the water temperature is 86.7°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. 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 rise 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 87.5°F on 2020, while the historical minimum was 85.6°F on 2021.
Daily water temperature in San Juan
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| May 2 | 86.0°F | 86.5°F | 85.9°F |
| May 3 | 85.3°F | 86.5°F | 85.9°F |
| May 4 | 85.3°F | 86.4°F | 85.8°F |
| May 5 | 84.9°F | 86.3°F | 86.0°F |
| May 6 | 85.5°F | 86.6°F | 86.1°F |
| May 7 | 86.1°F | 86.6°F | 86.3°F |
| May 8 | 86.1°F | 86.1°F | 86.4°F |
| May 9 | 86.4°F | 87.4°F | 86.4°F |
| May 10 | 86.1°F | 87.1°F | 86.2°F |
| May 11 | 86.3°F | 87.0°F | 86.1°F |
| May 12 | 87.0°F | 87.2°F | 86.3°F |
| May 13 | 87.4°F | 87.0°F | 86.5°F |
| May 14 | 86.8°F | 87.4°F | 86.5°F |
| May 15 | 86.2°F | 87.6°F | 86.5°F |
| May 16 | 86.7°F | 87.2°F | 86.4°F |
| May 17 | 87.0°F | 87.4°F | 86.7°F |
| May 18 | 87.0°F | 87.3°F | 86.7°F |
| May 19 | 86.9°F | 87.5°F | 86.6°F |
| May 20 | 87.0°F | 87.7°F | 86.7°F |
| May 21 | 87.1°F | 87.7°F | 86.8°F |
| May 22 | 87.1°F | 87.1°F | 86.8°F |
| May 23 | 87.0°F | 87.0°F | 86.7°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.