Port Antonio Weather in October
What's the weather like in Port Antonio (Portland) in October 2025?
The climate in Port Antonio during October can be summarized as hot, humid and very wet.
October is in the fall / autumn in Port Antonio and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 21°C (69°F) is normal.
| Daytime temperature | 28.9°C 84°F |
|---|---|
| Nightly temperature | 20.6°C 69°F |
| Average temperature | 24.7°C 76.5°F |
| Daily sunshine | 6.4 hrs |
| Avg rainfall | 385 mm 15.2 ins |
| Rainy days | 16 days |
| Sea temperature | 29.3°C 84.7°F |
| Humidity | 83% |
| Windspeed | 9.2kph 6 mph |
On average October is the wettest month of the year in Port Antonio with around 385mm 15.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.4 hours of sunshine per day.
October temperatures in Port Antonio
October rainfall
October hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Port Antonio in October 2025.
Other monthly averages
Best places to visit in October
Port Antonio weather stats
| Hottest month: | August | 30.3°C 86.5°F |
|---|---|---|
| Driest month: | March | 76mm 3ins |
| Sunniest month: | January | 7.6hrs |
| Coldest month: | January | 27.7°C 81.9°F |
| Wettest month: | October | 385mm 15.2ins |
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