Climate averages 1991–2020
Oslo weather
in October.
A cool, wet month: the 7th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a cool month in Oslo: daytime highs average 9.0°C and nights cool to about 4.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 94 mm of rain on roughly 12 days, which makes October a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 13 min on an average October day.
The nearest other city in this atlas is Lillestrøm (18 km away). In October its highs average 8.5°C, 0.5°C cooler than Oslo, with 84 mm of rain.
Among the 8 cities listed in Norway, Oslo ranks 6th of 8 for the warmest October highs and 4th of 8 for the driest October (rainfall, lowest first). The mean October high of those 8 cities is 9.4°C; Oslo is 0.4°C cooler than that mean.
From October to November, average highs fall by 5.2°C to 3.8°C, and monthly rainfall falls from 94 mm to 92 mm.
The annual picture
October in context
Monthly precipitation
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
Oslo climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.9°C-6.8°C | -6.8°C | 72 | 10.9 | 6.87 h |
| February | -0.4°C-6.4°C | -6.4°C | 52 | 8.6 | 9.19 h |
| March | 4.0°C-3.3°C | -3.3°C | 54 | 8.2 | 11.812 h |
| April | 9.8°C1.1°C | 1.1°C | 55 | 9.1 | 14.515 h |
| May | 15.7°C6.4°C | 6.4°C | 77 | 11.4 | 17.117 h |
| June | 19.4°C10.9°C | 10.9°C | 95 | 12.3 | 18.719 h |
| July | 21.6°C13.9°C | 13.9°C | 100 | 12.6 | 18.018 h |
| August | 20.2°C13.2°C | 13.2°C | 112 | 14.2 | 15.616 h |
| September | 15.5°C9.5°C | 9.5°C | 89 | 10.8 | 12.913 h |
| October, selected | 9.0°C4.6°C | 4.6°C | 94 | 11.7 | 10.210 h |
| November | 3.8°C0.3°C | 0.3°C | 92 | 12.0 | 7.68 h |
| December | -0.5°C-4.8°C | -4.8°C | 71 | 11.1 | 6.16 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
October in nearby cities
- Lillestrøm in OctoberNorway · 18 kmHigh 8.5°C · Low 3.8°C · 84 mm rain
- Drammen in OctoberNorway · 36 kmHigh 9.4°C · Low 4.8°C · 98 mm rain
- Fredrikstad in OctoberNorway · 78 kmHigh 10.0°C · Low 6.0°C · 87 mm rain
- Kristiansand in OctoberNorway · 252 kmHigh 10.6°C · Low 6.9°C · 141 mm rain
- Gothenburg in OctoberSweden · 255 kmHigh 10.8°C · Low 6.4°C · 94 mm rain
- Örebro in OctoberSweden · 261 kmHigh 9.1°C · Low 4.6°C · 56 mm rain
- Borås in OctoberSweden · 274 kmHigh 9.8°C · Low 5.4°C · 81 mm rain
- Stavanger in OctoberNorway · 302 kmHigh 10.4°C · Low 7.3°C · 221 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 Oslo) is explained once on the Oslo year overview and on the Sources, method and limits page.