What is the weather like in Bengaluru vs Chennai in September?

In September, Bengaluru averages 29°C high / 21°C low with about 109 mm of rain; Chennai averages 35°C high / 25°C low with about 105 mm.

Bengaluru vs Chennai in September

Bengaluru is the better pick in September — 73 vs 58 on SeasonMap's comfort score. Bengaluru is hot, rainy, clean air, while Chennai is sweltering, rainy, muggy air.

Bengaluru vs Chennai — September climate, side by side

	🇮🇳 Bengaluru	🇮🇳 Chennai
Comfort score	73/100 (B)	58/100 (D)
Feels-like high	30°C	40°C
Avg high / low	29° / 21°	35° / 25°
Rainfall	109 mm	105 mm
Rainy days	16	17
Humidity	81%	76%
Air quality (AQI)	35	66

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

Month by month

Bengaluru vs Chennai in September — FAQ

Is September better in Bengaluru or Chennai?: Bengaluru is the better pick in September — 73 vs 58 on SeasonMap's comfort score. Bengaluru is hot, rainy, clean air, while Chennai is sweltering, rainy, muggy air.
What is the weather like in Bengaluru vs Chennai in September?: In September, Bengaluru averages 29°C high / 21°C low with about 109 mm of rain; Chennai averages 35°C high / 25°C low with about 105 mm.