Port Antonio Weather & Climate: Best Time to Visit

With minimal seasonal shifts, Port Antonio experiences a constant climate year-round. On average, daytime temperatures range from a comfortable 30°C (86°F) in August to a comfortable 27°C (81°F) in January.

Nighttime temperatures range from 25°C (77°F) in August to 23°C (73°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Port Antonio has a notably wet climate with abundant precipitation, recording 1455 mm (57 in) of rainfall per year. The seasons in Port Antonio bring significant changes in precipitation. The wettest month, October, receives heavy rainfall, with an average of 192 mm (7.6 in) of precipitation. This rainfall is distributed across 16 rainy days.

In contrast, the driest month, February, experiences much less rainfall, totaling 76 mm (3 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Port Antonio Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

The sunniest days in Port Antonio occur in July, with around 8.8 hours of daily sunshine. Even in October, the least sunny month, Port Antonio doesn't shy away from the sun, still enjoying a comfortable 7.5 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Port Antonio.

The city experiences its highest humidity in October, reaching 81%. In July, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year