Hanamā‘ulu Weather in September

What's the weather like in Hanamā‘ulu (Hawaii) in September 2024?

The climate in Hanamā‘ulu during September can be summarized as hot, humid and wet.

September is in the fall / autumn in Hanamā‘ulu and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 29°C (84°F), whilst at night 23°C (73°F) is normal.

Hanamā‘ulu weather averages (imperial / metric)
Daytime temperature 28.9°C 83.9°F
Nightly temperature 22.6°C 72.6°F
Average temperature 25.7°C 78.3°F
Daily sunshine 8.5 hrs
Avg rainfall 123 mm 4.9 ins
Rainy days 16 days
Sea temperature 27.1°C 80.8°F
Humidity 74%
Windspeed 19.8kph 12 mph

On average September is the 2nd driest month of the year in Hanamā‘ulu with around 123mm 4.9 inches of rain making it a 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 8.5 hours of sunshine per day.

September temperatures in Hanamā‘ulu

Hanamā‘ulu average temperature in September

September rainfall

Hanamā‘ulu average rain in September

September hourly sunshine

Hanamā‘ulu average rain in September

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 Hanamā‘ulu in September 2024.