Kīlauea Weather in September

The climate in Kīlauea during September can be summarized as hot, humid and wet.

September is in the fall / autumn in Kīlauea 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.

On average September is the 2nd driest month of the year in Kīlauea with around 122mm 4.8 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 8.7 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 Kīlauea in September 2024.