What is the weather like in Hawaii Volcanoes National Park vs Kauai in September?

In September, Hawaii Volcanoes National Park averages 21°C high / 16°C low with about 123 mm of rain; Kauai averages 26°C high / 21°C low with about 39 mm.

Hawaii Volcanoes National Park vs Kauai in September

Kauai is the better pick in September — 93 vs 83 on SeasonMap's comfort score. Kauai is warm, a little rain, clean air, while Hawaii Volcanoes National Park is nice, rainy, clean air.

Hawaii Volcanoes National Park vs Kauai — September climate, side by side

	🇺🇸 Hawaii Volcanoes National Park	🇺🇸 Kauai
Comfort score	83/100 (A)	93/100 (S)
Feels-like high	22°C	28°C
Avg high / low	21° / 16°	26° / 21°
Rainfall	123 mm	39 mm
Rainy days	18	14
Humidity	81%	76%
Air quality (AQI)	19	22

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Hawaii Volcanoes National Park vs Kauai in September — FAQ

Is September better in Hawaii Volcanoes National Park or Kauai?: Kauai is the better pick in September — 93 vs 83 on SeasonMap's comfort score. Kauai is warm, a little rain, clean air, while Hawaii Volcanoes National Park is nice, rainy, clean air.
What is the weather like in Hawaii Volcanoes National Park vs Kauai in September?: In September, Hawaii Volcanoes National Park averages 21°C high / 16°C low with about 123 mm of rain; Kauai averages 26°C high / 21°C low with about 39 mm.