Temperature
Pleasant by day, warm at night.
Harbour Island is usually most comfortable from January to March. Typical daytime highs range from 73–83°F across the year. Rain varies by season.
Pleasant by day, warm at night.
Several rainy days. About 10 wet days this month.
Plenty of sun this month.
Warm days, with humid periods.
In November, days and nights feel about the same, around 74°.
Partly cloudy skies this month.
November's typical breeze keeps the air from feeling as stagnant.
November stays around 76°F through the day and night.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 73 | 71 | 1.9 | 8 | 9.3 | 73 | 76 |
| Feb | 74 | 71 | 1.4 | 6 | 10.1 | 74 | 75 |
| Mar | 74 | 71 | 1.6 | 6 | 10.8 | 73 | 75 |
| Apr | 76 | 73 | 1.7 | 6 | 11.5 | 75 | 76 |
| May | 78 | 76 | 3.2 | 9 | 11.6 | 79 | 79 |
| Jun | 81 | 79 | 4.0 | 15 | 11.7 | 81 | 82 |
| Jul | 83 | 80 | 3.2 | 14 | 12.3 | 80 | 84 |
| Aug | 83 | 81 | 4.1 | 17 | 11.6 | 80 | 85 |
| Sep | 83 | 80 | 5.8 | 18 | 11.0 | 80 | 85 |
| Oct | 81 | 78 | 5.4 | 16 | 9.9 | 78 | 83 |
| Nov | 78 | 75 | 2.9 | 10 | 9.4 | 74 | 80 |
| Dec | 75 | 73 | 1.9 | 8 | 9.2 | 74 | 78 |
Similar climates
Want a side-by-side climate view? Compare Harbour Island with Anguilla.
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