‘Āhuimanu Weather in October

What's the weather like in ‘Āhuimanu (Hawaii) in October 2025?

The climate in ‘Āhuimanu during October can be summarized as hot and very wet.

October is in the fall / autumn in ‘Āhuimanu and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a warm 29°C (85°F), whilst at night 21°C (70°F) is normal.

‘Āhuimanu weather averages (imperial / metric)
Daytime temperature 29.2°C 84.6°F
Nightly temperature 21.2°C 70.2°F
Average temperature 25.2°C 77.4°F
Daily sunshine 8.2 hrs
Avg rainfall 218 mm 8.6 ins
Rainy days 10 days
Sea temperature 26.7°C 80°F
Humidity 70%
Windspeed 18kph 11 mph

On average October is the 3rd driest month of the year in ‘Āhuimanu with around 218mm 8.6 inches of rain making it a very wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.2 hours of sunshine per day.

October temperatures in ‘Āhuimanu

‘Āhuimanu average temperature in October

October rainfall

‘Āhuimanu average rain in October

October hourly sunshine

‘Āhuimanu average rain in October

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 ‘Āhuimanu in October 2025.