Temperature
Warm by day, warm at night.
Port Antonio is usually most comfortable from January to April. Typical daytime highs range from 80–86°F across the year. Rain is frequent in many months.

Warm by day, warm at night.
It rains on most days. About 20 wet days this month.
Cloudier spells limit sunshine.
Very humid air is a major factor this month.
In November, afternoons feel about 88° and nights feel near 84°.
Partly cloudy skies this month.
Calm winds are typical in November.
November late afternoons are around 82°F, easing to about 80°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 81 | 76 | 2.5 | 17 | 10.6 | 84 | 81 |
| Feb | 80 | 75 | 2.0 | 16 | 10.9 | 84 | 81 |
| Mar | 81 | 75 | 2.6 | 18 | 11.5 | 84 | 81 |
| Apr | 82 | 77 | 2.8 | 17 | 11.9 | 84 | 82 |
| May | 84 | 78 | 5.5 | 21 | 11.3 | 85 | 83 |
| Jun | 85 | 79 | 5.1 | 20 | 11.6 | 86 | 83 |
| Jul | 86 | 80 | 4.2 | 18 | 12.0 | 84 | 84 |
| Aug | 86 | 80 | 5.2 | 20 | 11.5 | 84 | 85 |
| Sep | 86 | 80 | 6.1 | 22 | 11.1 | 85 | 85 |
| Oct | 85 | 79 | 8.2 | 25 | 10.4 | 86 | 85 |
| Nov | 83 | 78 | 5.3 | 20 | 10.0 | 85 | 84 |
| Dec | 82 | 77 | 3.6 | 19 | 10.1 | 85 | 83 |
Similar climates
Want a side-by-side climate view? Compare Port Antonio 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 1, 2026
Data & methodology