What is the weather like in Chennai vs Port Blair in September?

In September, Chennai averages 35°C high / 25°C low with about 105 mm of rain; Port Blair averages 29°C high / 25°C low with about 371 mm.

Chennai vs Port Blair in September

Chennai is the better pick in September — 58 vs 51 on SeasonMap's comfort score. Chennai is sweltering, rainy, muggy air, while Port Blair is hot, soaked, clean air.

Chennai vs Port Blair — September climate, side by side

	🇮🇳 Chennai	🇮🇳 Port Blair
Comfort score	58/100 (D)	51/100 (D)
Feels-like high	40°C	33°C
Avg high / low	35° / 25°	29° / 25°
Rainfall	105 mm	371 mm
Rainy days	17	27
Humidity	76%	85%
Air quality (AQI)	66	35

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

Month by month

Chennai vs Port Blair in September — FAQ

Is September better in Chennai or Port Blair?: Chennai is the better pick in September — 58 vs 51 on SeasonMap's comfort score. Chennai is sweltering, rainy, muggy air, while Port Blair is hot, soaked, clean air.
What is the weather like in Chennai vs Port Blair in September?: In September, Chennai averages 35°C high / 25°C low with about 105 mm of rain; Port Blair averages 29°C high / 25°C low with about 371 mm.