Add organization

When is the best time to visit Oslo?

Oslo's weather through the year, light and dark months, and what each season suits.

Answered at: Checked at:

Short answer

For warm weather and long days, the best time to visit Oslo is June to August, the warmest months of the year. The 1991–2020 normals for Oslo (Blindern) give an average temperature of 15.3 °C in June, 17.7 °C in July and 16.5 °C in August. From December to February the average is below freezing.

Choosing the best time to visit Norway a round calendar wheel with four seasons shown as a snowflake, a leaf, a sun and a raindrop around a small mountain

Why

  1. In MET's 1991–2020 normals for Oslo (Blindern), July is the warmest month at 17.7 °C and January the coldest at −2.3 °C.
  2. Visit Norway says that from late June to early August the nights never get really dark anywhere in Norway.
  3. In the winter months southern Norway gets six to eight hours of daylight, according to Visit Norway.

Details

Rain falls all year: the normal is 41 mm in March, the driest month, and 103 mm in August, the wettest. In spring, Norway's National Day on 17 May is a highlight, according to Visit Norway. In winter VisitOSLO lists World Cup skiing and biathlon at the Holmenkollen National Ski Arena in March, and places to ski and sledge are about 30 minutes from the centre.

Tip

If you come in July or August, pack a light rain jacket: August is Oslo's wettest month, with a normal of 103 mm.

What may differ

Normals are 30-year averages, and a single year can be much warmer or colder. In January 2026 the average at Blindern was −4.9 °C, against a normal of −2.3 °C.

People also ask

  • When should I go to Oslo?

Sources

Information checked on 15 October 2026.

Choosing the best time to visit Norway
Help