Guam Weather: September
 |
Average Day Temperature: | 90.9°F |
|
Average Night Temperature: | 86.1°F |
|
Sea Water Temperature: | 89.4°F |
|
Number of Sunny Days: | 5 days |
| Sunshine Hours: | 12.0 - 12.4 hours | |
|
Number of Rainy Days: | 14 days |
| Precipitation Totals: | 10.4 in | |
| detailed information | ||
Temperature
| Guam |
Air Temperature in September, °F
The highest day temperature in September 2024 was 90°F. The lowest night temperature was 82°F. The average values for day and night temperatures during September were 87.8°F и 84.9°F respectivly.
Guam Water Sea Temperature in September, °F
The average sea surface temperature in September 2024 for Guam was 89.9°F. The maximum and minimum values were 88.6°F and 90.8°F respectively.
Most of the days in September are cloudy but you can also expect sunny or gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Guam is 10.4 in. It makes september the most rainy month of the year.
The average wind speed in September is 9.7 mph. It makes September one of the most windless months of the year for Guam.
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 Guam in September is 6.0 hours.
Guam on the Weather Map
| 1800 |  |
86°F | W 17 mph |
| 2100 |  |
86°F | W 18 mph |
| 0000 |  |
86°F | W 17 mph |
| 0300 | |
86°F | W 16 mph |
| 0600 | |
86°F | W 15 mph |
| 0900 | |
86°F | W 17 mph |
| 1200 | |
88°F | W 16 mph |
| 1500 | |
88°F | W 17 mph |