The climate in Cap-Haïtien during September can be summarized as hot, humid and wet.
September is in the fall / autumn in Cap-Haïtien and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 22°C (72°F) is normal.
|Daytime temperature||32.1°C 89.8°F|
|Nightly temperature||22.1°C 71.8°F|
|Average temperature||27.1°C 80.8°F|
|Daily sunshine||7.4 hrs|
|Avg rainfall||152 mm 6 ins|
|Rainy days||15 days|
|Sea temperature||29.3°C 84.7°F|
|Windspeed||9.4kph 6 mph|
On average September is the 6th wettest month of the year in Cap-Haïtien with around 152mm 6 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.4 hours of sunshine per day.
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 Cap-Haïtien in September 2023.
Best places to visit in September
|Hottest month:||August||32.3°C 90.1°F|
|Driest month:||March||90mm 3.5ins|
|Coldest month:||January||28.3°C 82.9°F|
|Wettest month:||November||209mm 8.2ins|