What is the weather like in Santiago vs Valparaíso in September?

In September, Santiago averages 21°C high / 5°C low with about 42 mm of rain; Valparaíso averages 16°C high / 10°C low with about 14 mm.

Santiago vs Valparaíso in September

Santiago and Valparaíso are nearly tied in September — 83 vs 86 on SeasonMap's comfort score. Santiago is nice, a little rain; Valparaíso is cool, dry, clean air.

Santiago vs Valparaíso — September climate, side by side

	🇨🇱 Santiago	🇨🇱 Valparaíso
Comfort score	83/100 (A)	86/100 (A)
Feels-like high	20°C	14°C
Avg high / low	21° / 5°	16° / 10°
Rainfall	42 mm	14 mm
Rainy days	6	2
Humidity	66%	84%
Air quality (AQI)	96	38

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

Month by month

Santiago vs Valparaíso in September — FAQ

Is September better in Santiago or Valparaíso?: Santiago and Valparaíso are nearly tied in September — 83 vs 86 on SeasonMap's comfort score. Santiago is nice, a little rain; Valparaíso is cool, dry, clean air.
What is the weather like in Santiago vs Valparaíso in September?: In September, Santiago averages 21°C high / 5°C low with about 42 mm of rain; Valparaíso averages 16°C high / 10°C low with about 14 mm.