Average temperatures, rainfall and packing tips for Oslo, Norway in January
January in Oslo is typically freezing, with average daytime highs around -4°C and nights near -12°C. It is usually the coldest month of the year in Oslo.
January is one of the wetter months in Oslo, with around 89 mm of rain - plan around showers.
If your dates are flexible, the most comfortable months in Oslo are usually May, June, July and August.
← Oslo weather tomorrow (live)
In January, Oslo averages a daytime high of about -4°C and a night-time low of around -12°C, based on recent historical data. That makes it the coldest month of the year there.
January is one of the wetter months in Oslo, with around 89 mm of rain - plan around showers.
January is cold in Oslo. City sightseeing works fine if you dress for it, but pack properly and expect short days. If your dates are flexible, the most comfortable months in Oslo are usually May, June, July and August.