Climate averages 1991–2020
Weather in Norway in September
In September, average daytime highs across the 8 cities listed in Norway range from 14.0°C in Trondheim to 15.8°C in Drammen. Monthly rainfall ranges from 81 mm in Lillestrøm to 249 mm in Bergen.
Long-term climate patterns, not a forecast for a particular trip.
City by city
September in Norway
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Oslo | 15.5°C9.5°C | 9.5°C | 89 | 10.8 |
| Bergen | 14.2°C9.1°C | 9.1°C | 249 | 17.7 |
| Trondheim | 14.0°C7.3°C | 7.3°C | 102 | 14.8 |
| Stavanger | 14.4°C10.7°C | 10.7°C | 201 | 17.1 |
| Kristiansand | 15.4°C10.7°C | 10.7°C | 127 | 13.4 |
| Drammen | 15.8°C9.7°C | 9.7°C | 94 | 10.7 |
| Lillestrøm | 15.0°C8.6°C | 8.6°C | 81 | 10.4 |
| Fredrikstad | 15.6°C10.6°C | 10.6°C | 81 | 10.5 |
A rain day is a local calendar day with at least 1 mm of precipitation.