Weather & climate · Oslo

Best Time to Visit Norway

June to August

The best time to visit Norway is June to August, when daytime highs in Oslo are around 18–20°C. July is the warmest month (20°C by day), January the coldest (-8°C at night), and August the wettest with about 122 mm of rain.

20°C

Warmest: July

-8°C

Coldest nights: January

1049 mm

Rain per year

122 mm

Wettest: August

Norway weather by month

Jan-4°C-8°C78 mm
Feb-2°C-8°C60 mm
Mar2°C-5°C56 mm
Apr8°C-0°C61 mm
May14°C5°C92 mm
Jun18°C9°C96 mm
Jul20°C12°C112 mm
Aug19°C11°C122 mm
Sep14°C7°C96 mm
Oct7°C2°C104 mm
Nov2°C-3°C94 mm
Dec-3°C-7°C78 mm

Best time Good Less ideal

Average high Average low Rain (mm per month)

Month	High	Low	Rain	Humidity	Cloud cover	Verdict
January	-4°C	-8°C	78 mm	98%	83%	Cold
February	-2°C	-8°C	60 mm	98%	82%	Cold
March	2°C	-5°C	56 mm	93%	74%	Cold
April	8°C	-0°C	61 mm	83%	70%	Fair
May	14°C	5°C	92 mm	79%	68%	Fair
June	18°C	9°C	96 mm	78%	68%	Best time
July	20°C	12°C	112 mm	81%	71%	Best time
August	19°C	11°C	122 mm	84%	71%	Best time
September	14°C	7°C	96 mm	87%	73%	Fair
October	7°C	2°C	104 mm	93%	77%	Cold
November	2°C	-3°C	94 mm	96%	82%	Cold
December	-3°C	-7°C	78 mm	97%	82%	Cold

Data: NASA POWER (Prediction Of Worldwide Energy Resources) — 25-year climate averages 2001–2025, public domain, for the area around Oslo (59.92, 10.75). Satellite and model averages — local weather stations can differ by 1–2 °C, and mountains or coasts elsewhere in Norway have their own climate.

Frequently asked questions

When is the best time to visit Norway?

June to August. The best time to visit Norway is June to August, when daytime highs in Oslo are around 18–20°C. July is the warmest month (20°C by day), January the coldest (-8°C at night), and August the wettest with about 122 mm of rain.

What is the hottest month in Norway?

July, with average highs of 20°C in Oslo.

What is the coldest month in Norway?

January, when nights drop to about -8°C and days reach -4°C.

What is the rainiest month in Norway?

August with about 122 mm; March is the driest (56 mm).

When should I avoid visiting Norway?

October is the least comfortable month on average: 7°C by day and 104 mm of rain.

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