Tomorrow in Oslo looks
sunny, with a high of 54°
and an overnight low of 35°.
Rain is unlikely (10% chance).
Winds top out near 4 mph,
and the UV index reaches 1 (low).
Oslo has a humid continental climate.
July is the warmest month, with average highs of 70°,
and January the coldest, when nights fall to around 22°.
July brings the most rain, on about 13 days,
while June is the sunniest, with 13.1 hours of sunshine a day.
Over a whole year it rains on roughly 136 days.
The best time to visit Oslo is generally April to September, when these are the warmest and brightest weeks of the year. Daytime temperatures in that window sit near 63°F (17°C), with rain on about 11 days a month. For the same question asked the other way round, see where else is warm in April.
When is Oslo at its hottest?
July, averaging 70°F (21°C) by day and 56°F (13°C) overnight. The hottest single day in our 2015-2024 record for this location reached 90°F (32°C).
Does it snow in Oslo?
Yes - about 31 days a year carry measurable snowfall, concentrated October through May.
When is Oslo at its coldest?
January, with highs of 31°F (-1°C) and lows near 22°F (-6°C). The coldest day in the 2015-2024 record fell to -18°F (-28°C).
Which month is wettest in Oslo?
July, at 4.4 inches (112 mm) over about 13 days. April is the driest month, at 1.9 inches (50 mm).
When does Oslo drop below freezing?
Average overnight lows sit at or below 0°C in 4 months of the year, December through March.