Climate averages 1991–2020
Bergen weather
in September.
A cool, very wet month: the 4th warmest and the joint 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a cool month in Bergen: daytime highs average 14.2°C and nights cool to about 9.1°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 249 mm of rain on roughly 18 days, which makes September a very wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 58 min on an average September day.
The nearest other city in this atlas is Stavanger (160 km away). In September its highs average 14.4°C, about as warm as Bergen, with 201 mm of rain.
Among the 8 cities listed in Norway, Bergen ranks 7th of 8 for the warmest September highs and 8th of 8 for the driest September (rainfall, lowest first). The mean September high of those 8 cities is 15.0°C; Bergen is 0.8°C cooler than that mean.
From September to October, average highs fall by 4.5°C to 9.7°C, and monthly rainfall rises from 249 mm to 259 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Bergen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.4°C-1.2°C | -1.2°C | 249 | 20.3 | 6.77 h |
| February | 2.6°C-1.7°C | -1.7°C | 211 | 17.4 | 9.09 h |
| March | 4.6°C-0.4°C | -0.4°C | 192 | 18.3 | 11.712 h |
| April | 8.6°C2.2°C | 2.2°C | 133 | 15.3 | 14.615 h |
| May | 12.2°C5.6°C | 5.6°C | 116 | 14.0 | 17.217 h |
| June | 15.0°C9.0°C | 9.0°C | 121 | 14.1 | 18.819 h |
| July | 17.1°C11.3°C | 11.3°C | 149 | 16.4 | 18.118 h |
| August | 17.1°C11.4°C | 11.4°C | 188 | 17.3 | 15.716 h |
| September, selected | 14.2°C9.1°C | 9.1°C | 249 | 17.7 | 13.013 h |
| October | 9.7°C5.1°C | 5.1°C | 259 | 19.3 | 10.210 h |
| November | 5.3°C1.7°C | 1.7°C | 257 | 18.9 | 7.58 h |
| December | 2.9°C-0.7°C | -0.7°C | 271 | 20.0 | 5.96 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Stavanger in SeptemberNorway · 160 kmHigh 14.4°C · Low 10.7°C · 201 mm rain
- Drammen in SeptemberNorway · 280 kmHigh 15.8°C · Low 9.7°C · 94 mm rain
- Kristiansand in SeptemberNorway · 292 kmHigh 15.4°C · Low 10.7°C · 127 mm rain
- Oslo in SeptemberNorway · 305 kmHigh 15.5°C · Low 9.5°C · 89 mm rain
- Lillestrøm in SeptemberNorway · 320 kmHigh 15.0°C · Low 8.6°C · 81 mm rain
- Fredrikstad in SeptemberNorway · 339 kmHigh 15.6°C · Low 10.6°C · 81 mm rain
- Trondheim in SeptemberNorway · 429 kmHigh 14.0°C · Low 7.3°C · 102 mm rain
- Aalborg in SeptemberDenmark · 457 kmHigh 16.3°C · Low 11.2°C · 61 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bergen) is explained once on the Bergen year overview and on the Sources, method and limits page.