What is the weather like in Bilbao vs Santander in September?

In September, Bilbao averages 26°C high / 15°C low with about 93 mm of rain; Santander averages 22°C high / 16°C low with about 111 mm.

Bilbao vs Santander in September

Bilbao and Santander are nearly tied in September — 86 vs 84 on SeasonMap's comfort score. Bilbao is warm, rainy, clean air; Santander is nice, rainy, clean air.

Bilbao vs Santander — September climate, side by side

	🇪🇸 Bilbao	🇪🇸 Santander
Comfort score	86/100 (A)	84/100 (A)
Feels-like high	26°C	22°C
Avg high / low	26° / 15°	22° / 16°
Rainfall	93 mm	111 mm
Rainy days	10	10
Humidity	79%	81%
Air quality (AQI)	39	48

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

Month by month

Bilbao vs Santander in September — FAQ

Is September better in Bilbao or Santander?: Bilbao and Santander are nearly tied in September — 86 vs 84 on SeasonMap's comfort score. Bilbao is warm, rainy, clean air; Santander is nice, rainy, clean air.
What is the weather like in Bilbao vs Santander in September?: In September, Bilbao averages 26°C high / 15°C low with about 93 mm of rain; Santander averages 22°C high / 16°C low with about 111 mm.