San Juan Weather: August
 |
Average Day Temperature: | 91.0°F |
|
Average Night Temperature: | 82.1°F |
|
Sea Water Temperature: | 87.8°F |
|
Number of Sunny Days: | 6 days |
| Sunshine Hours: | 12.5 - 12.9 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 2.6 in | |
| detailed information | ||
forecast
| San Juan |
Temperature
| San Juan |
Air Temperature in August, °F
The highest day temperature in August 2026 was 92°F. The lowest night temperature was 81°F. The average values for day and night temperatures during August were 90.5°F и 83.3°F respectivly.
San Juan Water Sea Temperature in August, °F
The average sea surface temperature in August 2026 for San Juan was 88.4°F. The maximum and minimum values were 87.6°F and 89.4°F respectively.
Most of the days in August are cloudy but you can also expect sunny or gloomy days.
Precipitation Totals in August, in
Precipitation total in August for San Juan is 2.6 in. It makes august one of the most rainy months of the year.
The average wind speed in August is 11.9 mph. It makes August one of the most windy months of the year for San Juan.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for San Juan in August is 6.7 hours.
San Juan on the Weather Map
| Aguadilla |  |
+86 |
| Arecibo | |
+86 |
| Isabella | |
+84 |
| Mayaguez | |
+88 |
| Ponce | |
+88 |
| San Juan |  |
+88 |
| 1800 |  |
88°F | W 14 mph |
| 2100 | |
86°F | W 14 mph |
| 0000 | |
84°F | W 15 mph |
| 0300 | |
84°F | W 14 mph |
| 0600 | |
84°F | W 14 mph |
| 0900 |  |
88°F | W 17 mph |
| 1200 |  |
90°F | W 17 mph |
| 1500 | |
90°F | W 17 mph |