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Best time to visit · Norway
On the climate data, the best time to visit Oslo is May – August, scoring up to 81/100 with highs around 68°F (20°C) and 3.8 in (96 mm) of rain in June. September is a good shoulder-season month. The toughest months are November – January, mainly because of cool days.
Highs run from 29°F to 71°F across the year, and the yearly total is about 41.3 in (1049 mm) of rain and snow.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 29°F-2°C | 30°F-1°C | 38°F3°C | 50°F10°C | 60°F16°C | 68°F20°C | 71°F22°C | 69°F20°C | 61°F16°C | 48°F9°C | 38°F3°C | 30°F-1°C |
| Avg low | 20°F-7°C | 20°F-7°C | 25°F-4°C | 34°F1°C | 44°F7°C | 52°F11°C | 56°F13°C | 54°F12°C | 47°F8°C | 38°F3°C | 30°F-1°C | 22°F-6°C |
| Rain/snow | 3.1 in78 mm | 2.4 in60 mm | 2.2 in56 mm | 2.4 in61 mm | 3.6 in92 mm | 3.8 in96 mm | 4.4 in112 mm | 4.8 in122 mm | 3.8 in96 mm | 4.1 in104 mm | 3.7 in94 mm | 3.1 in78 mm |
| Humidity | 98% | 98% | 93% | 83% | 79% | 78% | 81% | 84% | 87% | 93% | 96% | 97% |
| Cloud | 83% | 82% | 74% | 70% | 68% | 68% | 71% | 71% | 73% | 77% | 82% | 82% |
| Comfort | 38 | 40 | 43 | 60 | 75 | 81 | 78 | 77 | 73 | 49 | 36 | 38 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~259 m (850 ft) to Oslo's ~22 m (72 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The coldest season, with highs of 29–30°F (-2–-1°C) and lows down to 20°F (-7°C). About 8.5 in (216 mm) of rain or snow falls across these months, 21% of the year's total. December – February are cold enough for snow. Comfort scores bottom out in December & January; the season averages 39/100.
Temperatures climb through the season, from 38°F highs in March to 60°F by May. It's the driest season, with only about 8.2 in (209 mm) of rain or snow, 20% of the year's total. March is cold enough for snow. Comfort peaks here: May ranks with the year's best, and the season averages 59/100.
Peak warmth: highs of 68–71°F (20–22°C). It's the wettest season, with about 13.0 in (330 mm) of rain, 31% of the year's total. Lows bottom out around 52°F (11°C). June – August are among the best-scoring months (season average 79/100).
Temperatures slide from 61°F highs in September to 38°F by November. About 11.6 in (294 mm) of rain falls across these months, 28% of the year's total. Nights dip below freezing in November. It holds the toughest stretch on our comfort score (November), averaging 53/100.
By comfort score: 4 Great, 2 Good, 1 Fair and 5 Tough. Great months: May – August. Tap a month for its own guide.
On the climate data, the best time to visit Oslo is May – August, scoring up to 81/100 with highs around 68°F (20°C) and 3.8 in (96 mm) of rain in June. September is a good shoulder-season month. The toughest months are November – January, mainly because of cool days.
August is the wettest month, averaging about 4.8 in (122 mm) of rain. March is the driest, with about 2.2 in (56 mm). The yearly total is around 41.3 in (1049 mm).
January is the coldest, with average lows of 20°F (-7°C) and highs of 29°F (-2°C). The warmest is July, with average highs of 71°F (22°C).
Not very: summer (June – August) humidity averages 81%, and highs peak around 71°F (22°C), so it rarely feels sticky.
On average, yes: lows fall below 32°F (0°C) in November – March, bottoming out around 20°F (-7°C) in January.
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