San Juan Weather: October
 |
Average Day Temperature: | 90.3°F |
|
Average Night Temperature: | 81.9°F |
|
Sea Water Temperature: | 88.8°F |
|
Number of Sunny Days: | 9 days |
| Sunshine Hours: | 11.5 - 12.0 hours | |
|
Number of Rainy Days: | 5 days |
| Precipitation Totals: | 2.3 in | |
| detailed information | ||
forecast
| San Juan |
Temperature
| San Juan |
Air Temperature in October, °F
The highest day temperature in October 2025 was 94°F. The lowest night temperature was 82°F. The average values for day and night temperatures during October were 89.6°F и 84.0°F respectivly.
San Juan Water Sea Temperature in October, °F
The average sea surface temperature in October 2025 for San Juan was 89.5°F. The maximum and minimum values were 88.6°F and 90.0°F respectively.
Most of the days in October are cloudy but you can also expect sunny or gloomy days.
Precipitation Totals in October, in
Precipitation total in October for San Juan is 2.3 in.
The average wind speed in October is 8.5 mph. It makes October the most windless month 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 October is 6.6 hours.
San Juan on the Weather Map
| Aguadilla |  |
+74 |
| Arecibo |  |
+74 |
| Isabella | |
+76 |
| Mayaguez | |
+74 |
| Ponce | |
+76 |
| San Juan | |
+80 |
| 0600 |  |
80°F | NW 6 mph |
| 0900 |  |
82°F | W 9 mph |
| 1200 | |
86°F | W 16 mph |
| 1500 | |
84°F | W 14 mph |
| 1800 | |
82°F | W 11 mph |
| 2100 | |
82°F | W 11 mph |
| 0000 | |
82°F | W 12 mph |
| 0300 | |
82°F | NW 10 mph |