What is the weather like in Kauai vs Key West in September?

In September, Kauai averages 26°C high / 21°C low with about 39 mm of rain; Key West averages 32°C high / 26°C low with about 195 mm.

Kauai vs Key West in September

Kauai is the better pick in September — 93 vs 76 on SeasonMap's comfort score. Kauai is warm, a little rain, clean air, while Key West is sweltering, soaked, clean air.

Kauai vs Key West — September climate, side by side

	Kauai	Key West
Comfort score	93/100 (S)	76/100 (B)
Feels-like high	28°C	37°C
Avg high / low	26° / 21°	32° / 26°
Rainfall	39 mm	195 mm
Rainy days	14	13
Humidity	76%	79%
Air quality (AQI)	22	35

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

Kauai vs Key West in September — FAQ

Is September better in Kauai or Key West?: Kauai is the better pick in September — 93 vs 76 on SeasonMap's comfort score. Kauai is warm, a little rain, clean air, while Key West is sweltering, soaked, clean air.
What is the weather like in Kauai vs Key West in September?: In September, Kauai averages 26°C high / 21°C low with about 39 mm of rain; Key West averages 32°C high / 26°C low with about 195 mm.