Temperature
Warm by day, warm at night.
Grand Cayman is usually most comfortable from February to April. Typical daytime highs range from 79–85°F across the year. Rain varies by season.

Warm by day, warm at night.
Rain is frequent. About 14 wet days, more than in most months.
Plenty of sun this month.
Warm days, with humid periods.
In November, afternoons feel about 80° and nights feel near 79°.
Partly cloudy skies this month.
Wind can affect exposed beach comfort.
November stays around 80°F through the day and night.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 79 | 76 | 1.1 | 7 | 10.5 | 76 | 80 |
| Feb | 79 | 77 | 0.6 | 5 | 10.8 | 76 | 80 |
| Mar | 79 | 77 | 0.8 | 5 | 11.0 | 76 | 80 |
| Apr | 80 | 78 | 0.8 | 5 | 12.0 | 78 | 81 |
| May | 82 | 79 | 3.3 | 12 | 11.9 | 80 | 83 |
| Jun | 83 | 80 | 4.4 | 14 | 11.7 | 82 | 84 |
| Jul | 84 | 81 | 2.5 | 12 | 12.4 | 80 | 85 |
| Aug | 85 | 82 | 3.6 | 15 | 11.8 | 80 | 86 |
| Sep | 84 | 81 | 5.5 | 18 | 10.8 | 80 | 86 |
| Oct | 83 | 80 | 8.3 | 20 | 9.9 | 81 | 85 |
| Nov | 81 | 79 | 5.1 | 14 | 9.9 | 78 | 83 |
| Dec | 80 | 78 | 2.0 | 10 | 10.2 | 77 | 82 |
Similar climates
Want a side-by-side climate view? Compare Grand Cayman with Grand Turk.
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: Jun 1, 2026
Data & methodology