Climate almanac
Port Antonio
Portland Parish, Jamaica · 18.18°, -76.45°
What is the climate like in Port Antonio?
The best time to visit Port Antonio is typically January – March, with trip comfort peaking in February (6.9/10). Port Antonio is warmest in September, when daily highs average 84°F (29°C), and coolest in February, when lows fall to about 74°F (23°C). The wettest month is typically October and the driest is July; the year sees roughly 59 in (1503 mm) of precipitation.
- Best time to visitJanuary – March — comfort peaks in February (6.9/10)
- Warmest monthSeptember — average high 84°F (29°C)
- Coolest monthFebruary — average low 74°F (23°C)
- Wettest monthOctober (10 in (256 mm))
- Driest monthJuly (3.3 in (83 mm))
- Annual precipitation59 in (1503 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromNorman Manley Intl, 45 km away (1973-2025)