What is the weather like in Haleakala National Park vs Honolulu in September?

In September, Haleakala National Park averages 17°C high / 13°C low with about 65 mm of rain; Honolulu averages 31°C high / 24°C low with about 34 mm.

Haleakala National Park vs Honolulu in September

Honolulu is the better pick in September — 92 vs 87 on SeasonMap's comfort score. Honolulu is sweltering, a little rain, clean air, while Haleakala National Park is cool, a little rain, clean air.

Haleakala National Park vs Honolulu — September climate, side by side

	🇺🇸 Haleakala National Park	🇺🇸 Honolulu
Comfort score	87/100 (A)	92/100 (S)
Feels-like high	15°C	34°C
Avg high / low	17° / 13°	31° / 24°
Rainfall	65 mm	34 mm
Rainy days	21	6
Humidity	78%	73%
Air quality (AQI)	38	31

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

Month by month

Haleakala National Park vs Honolulu in September — FAQ

Is September better in Haleakala National Park or Honolulu?: Honolulu is the better pick in September — 92 vs 87 on SeasonMap's comfort score. Honolulu is sweltering, a little rain, clean air, while Haleakala National Park is cool, a little rain, clean air.
What is the weather like in Haleakala National Park vs Honolulu in September?: In September, Haleakala National Park averages 17°C high / 13°C low with about 65 mm of rain; Honolulu averages 31°C high / 24°C low with about 34 mm.