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

In September, Castro averages 12°C high / 5°C low with about 141 mm of rain; Portillo averages 4°C high / -3°C low with about 47 mm.

Castro vs Portillo in September

Portillo is the better pick in September — 79 vs 65 on SeasonMap's comfort score. Portillo is cold, a little rain, clean air, while Castro is cold, rainy, clean air.

Castro vs Portillo — September climate, side by side

	🇨🇱 Castro	🇨🇱 Portillo
Comfort score	65/100 (C)	79/100 (B)
Feels-like high	9°C	3°C
Avg high / low	12° / 5°	4° / -3°
Rainfall	141 mm	47 mm
Rainy days	17	6
Humidity	84%	59%
Air quality (AQI)	28	50

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

Month by month

Castro 🇨🇱 Chilecold, rainy, clean air · best February65
Portillo 🇨🇱 Chilecold, a little rain, clean air · best June79

Castro vs Portillo in September — FAQ

Is September better in Castro or Portillo?: Portillo is the better pick in September — 79 vs 65 on SeasonMap's comfort score. Portillo is cold, a little rain, clean air, while Castro is cold, rainy, clean air.
What is the weather like in Castro vs Portillo in September?: In September, Castro averages 12°C high / 5°C low with about 141 mm of rain; Portillo averages 4°C high / -3°C low with about 47 mm.