What is the weather like in Istanbul vs Mumbai in September?

In September, Istanbul averages 27°C high / 19°C low with about 41 mm of rain; Mumbai averages 31°C high / 25°C low with about 467 mm.

Istanbul vs Mumbai in September

Istanbul is the better pick in September — 86 vs 43 on SeasonMap's comfort score. Istanbul is warm, a little rain, while Mumbai is sweltering, soaked, muggy air.

Istanbul vs Mumbai — September climate, side by side

	🇹🇷 Istanbul	🇮🇳 Mumbai
Comfort score	86/100 (A)	43/100 (F)
Feels-like high	27°C	37°C
Avg high / low	27° / 19°	31° / 25°
Rainfall	41 mm	467 mm
Rainy days	7	27
Humidity	70%	87%
Air quality (AQI)	52	65

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

Month by month

Istanbul 🇹🇷 Turkeywarm, a little rain · best May86
Mumbai 🇮🇳 Indiasweltering, soaked, muggy air · best January43

Istanbul vs Mumbai in September — FAQ

Is September better in Istanbul or Mumbai?: Istanbul is the better pick in September — 86 vs 43 on SeasonMap's comfort score. Istanbul is warm, a little rain, while Mumbai is sweltering, soaked, muggy air.
What is the weather like in Istanbul vs Mumbai in September?: In September, Istanbul averages 27°C high / 19°C low with about 41 mm of rain; Mumbai averages 31°C high / 25°C low with about 467 mm.