Istanbul vs Oslo in May

Istanbul is the better pick in May — 93 vs 81 on SeasonMap's comfort score. Istanbul is nice, a little rain, very humid, while Oslo is cool, rainy, clean air.

Istanbul vs OsloMay climate, side by side

IstanbulOslo
Comfort score93/100 (S)81/100 (A)
Feels-like high20°C13°C
Avg high / low20° / 13°15° / 6°
Rainfall36 mm82 mm
Rainy days812
Humidity75%64%
Air quality (AQI)5343

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

Istanbul vs Oslo in May — FAQ

Is May better in Istanbul or Oslo?
Istanbul is the better pick in May — 93 vs 81 on SeasonMap's comfort score. Istanbul is nice, a little rain, very humid, while Oslo is cool, rainy, clean air.
What is the weather like in Istanbul vs Oslo in May?
In May, Istanbul averages 20°C high / 13°C low with about 36 mm of rain; Oslo averages 15°C high / 6°C low with about 82 mm.