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

In September, Castro averages 12°C high / 5°C low with about 141 mm of rain; Santiago averages 21°C high / 5°C low with about 42 mm.

Castro vs Santiago in September

Santiago is the better pick in September — 83 vs 65 on SeasonMap's comfort score. Santiago is nice, a little rain, while Castro is cold, rainy, clean air.

Castro vs Santiago — September climate, side by side

	🇨🇱 Castro	🇨🇱 Santiago
Comfort score	65/100 (C)	83/100 (A)
Feels-like high	9°C	20°C
Avg high / low	12° / 5°	21° / 5°
Rainfall	141 mm	42 mm
Rainy days	17	6
Humidity	84%	66%
Air quality (AQI)	28	96

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

Month by month

Castro 🇨🇱 Chilecold, rainy, clean air · best February65
Santiago 🇨🇱 Chilenice, a little rain · best November83

Castro vs Santiago in September — FAQ

Is September better in Castro or Santiago?: Santiago is the better pick in September — 83 vs 65 on SeasonMap's comfort score. Santiago is nice, a little rain, while Castro is cold, rainy, clean air.
What is the weather like in Castro vs Santiago in September?: In September, Castro averages 12°C high / 5°C low with about 141 mm of rain; Santiago averages 21°C high / 5°C low with about 42 mm.