Temperature
Pleasant by day, warm at night.
Warm coastal days and good sunshine. Wind on exposed beaches is the main drawback.
Pleasant by day, warm at night.
Several rainy days, mostly brief and on-and-off. About 10 wet days, fewer than in most months.
Good sunshine this month.
Warm days, with humid periods.
In January, afternoons feel about 76° and nights feel near 74°.
Mostly clear skies this month.
Wind can affect exposed beach comfort.
January stays around 77°F through the day and night.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 78 | 76 | 1.2 | 10 | 6.9 | 77 | 80 |
| Feb | 78 | 76 | 1.0 | 7 | 7.3 | 77 | 80 |
| Mar | 78 | 76 | 0.9 | 7 | 7.2 | 76 | 80 |
| Apr | 79 | 76 | 1.6 | 9 | 6.9 | 78 | 80 |
| May | 80 | 78 | 2.8 | 13 | 5.0 | 81 | 82 |
| Jun | 82 | 79 | 2.3 | 12 | 5.2 | 81 | 83 |
| Jul | 82 | 80 | 3.3 | 16 | 5.9 | 81 | 83 |
| Aug | 83 | 80 | 4.3 | 17 | 5.5 | 82 | 84 |
| Sep | 83 | 80 | 5.1 | 18 | 4.5 | 81 | 85 |
| Oct | 82 | 80 | 5.5 | 18 | 4.7 | 81 | 85 |
| Nov | 81 | 78 | 4.9 | 16 | 5.4 | 80 | 83 |
| Dec | 80 | 77 | 1.9 | 12 | 6.4 | 78 | 82 |
Similar climates
Want a side-by-side climate view? Compare St. John with St. Lucia.
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 13, 2026
Data & methodology