Temperature
Warm by day, warm at night.
Chamorro is usually most comfortable in February and March. Typical daytime highs range from 75–80°F across the year. Rain varies by season.

Warm by day, warm at night.
Rain is frequent. About 16 wet days this month.
Plenty of sun this month.
Very humid air is a major factor this month.
In November, afternoons feel about 78° and nights feel near 76°.
Partly cloudy skies this month.
Wind is more noticeable in November; open areas can feel blustery.
November stays around 78°F through the day and night.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 76 | 74 | 2.0 | 12 | 10.5 | 76 |
| Feb | 75 | 73 | 1.3 | 9 | 10.6 | 77 |
| Mar | 76 | 74 | 1.1 | 8 | 11.1 | 78 |
| Apr | 77 | 75 | 1.7 | 9 | 11.9 | 80 |
| May | 78 | 76 | 2.3 | 12 | 12.2 | 81 |
| Jun | 80 | 77 | 3.8 | 17 | 12.2 | 81 |
| Jul | 80 | 76 | 8.9 | 26 | 11.4 | 82 |
| Aug | 79 | 76 | 12.8 | 27 | 9.9 | 83 |
| Sep | 79 | 76 | 11.4 | 26 | 9.8 | 83 |
| Oct | 79 | 76 | 9.6 | 24 | 10.2 | 83 |
| Nov | 79 | 76 | 4.4 | 16 | 10.4 | 81 |
| Dec | 78 | 76 | 2.3 | 13 | 10.4 | 79 |
Similar climates
Want a side-by-side climate view? Compare Chamorro with Cabo San Lucas.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology