Istanbul vs Oslo in September
Istanbul is the better pick in September — 90 vs 77 on SeasonMap's comfort score. Istanbul is warm, dry, while Oslo is cool, rainy, clean air.
Istanbul vs Oslo — September climate, side by side
| Istanbul | Oslo | |
|---|---|---|
| Comfort score | 90/100 (S) | 77/100 (B) |
| Feels-like high | 24°C | 15°C |
| Avg high / low | 25° / 19° | 16° / 10° |
| Rainfall | 26 mm | 102 mm |
| Rainy days | 5 | 11 |
| Humidity | 68% | 82% |
| Air quality (AQI) | 52 | 38 |
Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.
Istanbul vs Oslo in September — FAQ
- Is September better in Istanbul or Oslo?
- Istanbul is the better pick in September — 90 vs 77 on SeasonMap's comfort score. Istanbul is warm, dry, while Oslo is cool, rainy, clean air.
- What is the weather like in Istanbul vs Oslo in September?
- In September, Istanbul averages 25°C high / 19°C low with about 26 mm of rain; Oslo averages 16°C high / 10°C low with about 102 mm.