Istanbul vs Ulaanbaatar in September

Istanbul is the better pick in September — 88 vs 82 on SeasonMap's comfort score. Istanbul is warm, dry, while Ulaanbaatar is cool, a little rain, clean air.

Istanbul vs UlaanbaatarSeptember climate, side by side

IstanbulUlaanbaatar
Comfort score88/100 (A)82/100 (A)
Feels-like high24°C14°C
Avg high / low25° / 19°17° / 4°
Rainfall26 mm39 mm
Rainy days57
Humidity68%64%
Air quality (AQI)5236

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

Istanbul vs Ulaanbaatar in September — FAQ

Is September better in Istanbul or Ulaanbaatar?
Istanbul is the better pick in September — 88 vs 82 on SeasonMap's comfort score. Istanbul is warm, dry, while Ulaanbaatar is cool, a little rain, clean air.
What is the weather like in Istanbul vs Ulaanbaatar in September?
In September, Istanbul averages 25°C high / 19°C low with about 26 mm of rain; Ulaanbaatar averages 17°C high / 4°C low with about 39 mm.