Oslo Weather Guide

Despite its northern latitude, Oslo’s coastal location and temperate sea temps means the city has a much milder climate than you’d think with warm summers and cold, snowy winters. The best time to visit is April to August, or November to February if you’re into skiing and boarding.

Season and Clothing

Summer: June to August

Known as the land of the midnight sun, midsummer in Oslo can mean over 18 hours of sunlight and nights where it’s not completely dark. Head north of the Arctic Circle in Norway for the true midnight sun experience. Summer in the city can be changeable with temps up to 25 degrees Celsius, long sunny days and wet weather. Summer is also festival season – don’t miss Øya Festival,  a 4-day music fest in August held at the historic Medieval Park with green cred and international headliners.

Average temperatures: 11 – 22 degrees Celsius.
Appropriate clothing: Jeans, shirts, trainers, sunnies, shorts and t-shirts.
Don’t forget: A hoodie.

Autumn: September to October

While the weather is getting cooler, the Oslo scenery starts to heat up with warm autumn hues in the parks and forests around Oslo. The best places to head outdoors and see the leaves change include Akershus Fortress, Vigeland Sculpture, Oslomarka Forest and the Oslofjord Islands. The first sprinklings of snow also begin to fall in October and the weather is still quite changeable. For main events, the Oslo Marathon and ULTIMA Oslo Contemporary Music Festival hit town in September.

Average temperatures: 4 – 16 degrees Celsius.
Appropriate clothing: Clothes for layering - jumpers, long-sleeve tops, pants and a lightweight jacket.
Don’t forget: A camera.

Winter: November to March

Oslo’s winters are long with the occasional freezing cold spell, and ideal for winter sports enthusiast. Snow is plentiful in the forested areas north of the city, and Oslo’s super-close proximity to the powder means you can see people in skis in the city centre. The Oslo Winter Park Tryvann Ski is just 20 minutes from centrum! This season also welcomes the Annual Christmas Fair in December to Oslo, as well as the 4-day Inferno Festival – a showcase of black metal bands – held around Easter.

Average temperatures: -7 – 6 degrees Celsius.
Appropriate clothing:  A warm coat, pants, long-sleeve tops, gloves, scarves, boots and thermals.
Don’t forget: A beanie.

Spring: April to May

While short, springtime is a favourite season in Oslo after the long, cold winter. Oslo’s scenery  during April and May is at its most spectacular when the trees and plants bloom, but the weather is at its most varied with snow, warm sunshine and wind not uncommon during these months. Daytime temps are still cool so it’s best to wear layers and prepare for all change. St Hallvard’s Feast Day, for the city’s patron saint, is held in May, as is the massive Norwegian National Day on the 17th.

Average temperatures: -3 – 9 degrees Celsius.
Appropriate clothing: Clothes for layering such as jumpers, long-sleeve tops, pants and a lightweight jacket.
Don’t forget: An umbrella.