Current Sea Water Temperature:
+88.4°F
| Maximum Sea Water Temperature in June: | 91.2°F |
| Minimum Sea Water Temperature in June: | 86.0°F |
| Average water temperature in June: | 88.9°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| June 13 | 88.4°F | June 08 | 88.4°F |
| June 12 | 89.0°F | June 07 | 88.0°F |
| June 11 | 88.6°F | June 06 | 88.2°F |
| June 10 | 88.8°F | June 05 | 88.0°F |
| June 09 | 88.4°F | June 04 | 88.0°F |
When is the Warmest Sea for Guam?
According to our data for the last three years for Guam the highest average sea water temperature was in August, September and July.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Guam was 88.8°F. The maximum and minimum values were 87.8°F and 89.8°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Guam was 88.9°F. The maximum and minimum values were 87.8°F and 89.8°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Guam was 88.5°F. The maximum and minimum values were 87.4°F and 89.4°F respectively.
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Guam
Local time: 06:19
14 jun, sunday
| 0900 |  |
88°F | W 9 mph |
| 1200 |  |
90°F | W 9 mph |
| 1500 | |
90°F | SW 9 mph |
| 1800 | |
88°F | SW 7 mph |
| 2100 |  |
86°F | SW 7 mph |
15 jun, monday
| 0000 |  |
86°F | SW 7 mph |
| 0300 |  |
84°F | SW 6 mph |
| 0600 | |
84°F | W 7 mph |