What is the weather like in Brussels vs Luxembourg in September?

In September, Brussels averages 21°C high / 12°C low with about 63 mm of rain; Luxembourg averages 20°C high / 10°C low with about 75 mm.

Brussels vs Luxembourg in September

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

Brussels vs Luxembourg — September climate, side by side

	🇧🇪 Brussels	🇱🇺 Luxembourg
Comfort score	86/100 (A)	83/100 (A)
Feels-like high	20°C	18°C
Avg high / low	21° / 12°	20° / 10°
Rainfall	63 mm	75 mm
Rainy days	11	9
Humidity	76%	76%
Air quality (AQI)	45	42

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

Month by month

Brussels vs Luxembourg in September — FAQ

Is September better in Brussels or Luxembourg?: Brussels and Luxembourg are nearly tied in September — 86 vs 83 on SeasonMap's comfort score. Brussels is nice, a little rain, clean air; Luxembourg is nice, a little rain, clean air.
What is the weather like in Brussels vs Luxembourg in September?: In September, Brussels averages 21°C high / 12°C low with about 63 mm of rain; Luxembourg averages 20°C high / 10°C low with about 75 mm.