What is the weather like in Birmingham vs Mariehamn in September?

In September, Birmingham averages 18°C high / 10°C low with about 74 mm of rain; Mariehamn averages 16°C high / 9°C low with about 54 mm.

Birmingham vs Mariehamn in September

Birmingham is the better pick in September — 79 vs 73 on SeasonMap's comfort score. Birmingham is nice, a little rain, clean air, while Mariehamn is cool, a little rain, clean air.

Birmingham vs Mariehamn — September climate, side by side

	Birmingham	Mariehamn
Comfort score	79/100 (B)	73/100 (B)
Feels-like high	16°C	14°C
Avg high / low	18° / 10°	16° / 9°
Rainfall	74 mm	54 mm
Rainy days	13	8
Humidity	80%	79%
Air quality (AQI)	38	38

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

Birmingham vs Mariehamn in September — FAQ

Is September better in Birmingham or Mariehamn?: Birmingham is the better pick in September — 79 vs 73 on SeasonMap's comfort score. Birmingham is nice, a little rain, clean air, while Mariehamn is cool, a little rain, clean air.
What is the weather like in Birmingham vs Mariehamn in September?: In September, Birmingham averages 18°C high / 10°C low with about 74 mm of rain; Mariehamn averages 16°C high / 9°C low with about 54 mm.