London vs Shanghai in September

London is the better pick in September — 82 vs 63 on SeasonMap's comfort score. London is nice, a little rain, clean air, while Shanghai is hot, soaked, very humid.

London vs ShanghaiSeptember climate, side by side

LondonShanghai
Comfort score82/100 (A)63/100 (C)
Feels-like high19°C30°C
Avg high / low20° / 12°27° / 22°
Rainfall55 mm183 mm
Rainy days1013
Humidity78%82%
Air quality (AQI)4694

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

London vs Shanghai in September — FAQ

Is September better in London or Shanghai?
London is the better pick in September — 82 vs 63 on SeasonMap's comfort score. London is nice, a little rain, clean air, while Shanghai is hot, soaked, very humid.
What is the weather like in London vs Shanghai in September?
In September, London averages 20°C high / 12°C low with about 55 mm of rain; Shanghai averages 27°C high / 22°C low with about 183 mm.