Whether you're visiting Oslo County in Norway during the peak of July (22°C (72°F)) or the cooler months around January (0°C (32°F)), knowing what to pack starts with understanding the local climate. Our overview is based on data from Oslo, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
Oslo County offers pleasant conditions in June, July and August, with temperatures typically ranging from 20°C (68°F) to 22°C (72°F).
The colder period typically falls in the months of January, February, March, October, November and December.
When it comes to rainfall, Oslo County experiences moderate variations in precipitation across the seasons. You can expect around 112 mm (4.4 in) of rain in August, dropping to 53 mm (2.1 in) in March.
Visitors hoping to maximize their time in the sun should consider planning their trip for May, when daylight hours are at their peak.
