Oslo Weather Guide
Despite its location in the far north of Europe, Oslo has a surprisingly mild climate. The cause of this mild climate is the warm Gulf stream which blows across the Atlantic to Oslo. The temperature in the summer is mild, with some occasionally hot days (though the coastal waters remain very cold year-round). In winter, the temperatures remain close to freezing, which contributes to Oslo's popularity as a ski destination.
The rainiest month in Oslo is August, with an average of 86mm. This is followed by July with 75mm and September with 72mm, though rainfall is spread fairly evenly throughout the year. In the wintertime, temperatures hover in the mid-twenties, Fahrenheit and in the hottest summer months, temperatures are between 50 and 70 degrees Fahrenheit.
Springtime can be pleasantly cold in Oslo, and this is one of the middling times of year in which the sunlight follows a relatively normal pattern. At the height of summer, Oslo receives something like 18 hours of daylight, and in the height of winter, 18 hours of darkness.
Oslo's weather is surprisingly livable for its location; and the summertime is more than pleasant.
