What is the weather like in Montego Bay vs San Juan in September?

In September, Montego Bay averages 34°C high / 25°C low with about 185 mm of rain; San Juan averages 32°C high / 26°C low with about 147 mm.

Montego Bay vs San Juan in September

Montego Bay is the better pick in September — 76 vs 61 on SeasonMap's comfort score. Montego Bay is sweltering, soaked, clean air, while San Juan is sweltering, rainy, clean air.

Montego Bay vs San Juan — September climate, side by side

	🇯🇲 Montego Bay	🇵🇷 San Juan
Comfort score	76/100 (B)	61/100 (C)
Feels-like high	40°C	38°C
Avg high / low	34° / 25°	32° / 26°
Rainfall	185 mm	147 mm
Rainy days	26	13
Humidity	83%	83%
Air quality (AQI)	38	29

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

Month by month

Montego Bay vs San Juan in September — FAQ

Is September better in Montego Bay or San Juan?: Montego Bay is the better pick in September — 76 vs 61 on SeasonMap's comfort score. Montego Bay is sweltering, soaked, clean air, while San Juan is sweltering, rainy, clean air.
What is the weather like in Montego Bay vs San Juan in September?: In September, Montego Bay averages 34°C high / 25°C low with about 185 mm of rain; San Juan averages 32°C high / 26°C low with about 147 mm.