Guam Weather: August
 |
Average Day Temperature: | 90.9°F |
|
Average Night Temperature: | 86.4°F |
|
Sea Water Temperature: | 89.4°F |
|
Number of Sunny Days: | 4 days |
| Sunshine Hours: | 12.4 - 12.7 hours | |
|
Number of Rainy Days: | 13 days |
| Precipitation Totals: | 8.8 in | |
| detailed information | ||
Temperature
| Guam |
Air Temperature in August, °F
The highest day temperature in August 2026 was 90°F. The lowest night temperature was 78°F. The average values for day and night temperatures during August were 87.2°F и 85.1°F respectivly.
Guam Water Sea Temperature in August, °F
The average sea surface temperature in August 2026 for Guam was 88.6°F. The maximum and minimum values were 87.8°F and 89.8°F respectively.
Most of the days in August are gloomy but you can also expect sunny days.
Precipitation Totals in August, in
Precipitation total in August for Guam is 8.8 in. It makes august one of the most rainy months of the year.
The average wind speed in August is 9.8 mph. It makes August 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 August is 5.8 hours.
Guam on the Weather Map
| 0900 |  |
86°F | S 14 mph |
| 1200 | |
88°F | S 12 mph |
| 1500 |  |
88°F | SW 13 mph |
| 1800 | |
86°F | SW 12 mph |
| 2100 |  |
86°F | SW 11 mph |
| 0000 | |
84°F | SW 10 mph |
| 0300 | |
84°F | W 9 mph |
| 0600 | |
84°F | W 9 mph |