What is the weather like in Denver vs San Diego in September?

In September, Denver averages 29°C high / 11°C low with about 24 mm of rain; San Diego averages 26°C high / 19°C low with about 6 mm.

Denver vs San Diego in September

Denver and San Diego are nearly tied in September — 90 vs 91 on SeasonMap's comfort score. Denver is warm, dry, clean air; San Diego is warm, dry, muggy air.

Denver vs San Diego — September climate, side by side

	Denver	San Diego
Comfort score	90/100 (S)	91/100 (S)
Feels-like high	27°C	27°C
Avg high / low	29° / 11°	26° / 19°
Rainfall	24 mm	6 mm
Rainy days	3	1
Humidity	46%	77%
Air quality (AQI)	38	53

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

Denver vs San Diego in September — FAQ

Is September better in Denver or San Diego?: Denver and San Diego are nearly tied in September — 90 vs 91 on SeasonMap's comfort score. Denver is warm, dry, clean air; San Diego is warm, dry, muggy air.
What is the weather like in Denver vs San Diego in September?: In September, Denver averages 29°C high / 11°C low with about 24 mm of rain; San Diego averages 26°C high / 19°C low with about 6 mm.