Oslo month by month
Plan your visit to Oslo by month. Compare weather, crowds, events, and prices across all twelve months with historical climate data.
Oslo's year divides into two distinct halves. From November through March, highs range between -1°C in January and 6°C in March, with 8 to 11 rain days per month. May through September forms the warm half at 16°C to 21°C. June and July both hit the 21°C peak, but July logs 14 rain days to June's 10. January's -1°C and July's 21°C mark the year's extremes. April and October both land at 10°C as the year's only transition months. The driest stretch falls in March and April at 8 rain days each.
TTDI publishes 12 month guides beneath this index. Open June first if your trip falls in summer. It matches July's 21°C high but carries 10 rain days against July's 14. For a winter visit, start with January at -1°C and 9 rain days, then compare December at 0°C and February at 1°C. April averages 10°C with 8 rain days. September sits at 16°C with 10.
July reaches Oslo's 21°C summer peak yet records 14 rain days, 4 more than June's 10, the highest count in the measured year.
- January
- High
- -1°C
- Low
- -6°C
- Rain
- 77 mm
January in Oslo is defined by darkness. At 60° north latitude, the city gets roughly 6 hours of low-angled daylight in early January, with sunrise around 9:15 and sunset by 15:15.…
- February
- High
- 1°C
- Low
- -5°C
- Rain
- 54 mm
February in Oslo is defined by the light, or more precisely, the return of it. The month opens with roughly 8 hours of daylight and closes with nearly 10, a gain of almost 4…
- March
- High
- 6°C
- Low
- -2°C
- Rain
- 46 mm
March in Oslo is still winter. That is the single most important thing to know before you book. Average daytime highs reach only 5.6°C (42°F), and nights regularly drop to -2.4°C…
- April
- High
- 10°C
- Low
- 1°C
- Rain
- 49 mm
The single most important thing to know about Oslo in April is that Easter (Påske) often falls in this month, and when it does, Norway effectively shuts down for 4 to 5 days. Shops…
- May
- High
- 17°C
- Low
- 7°C
- Rain
- 64 mm
The first thing to know about Oslo in May is a date. May 17, Norwegian Constitution Day, known locally as Syttende Mai, turns the city into one long, joyful parade. Over 100 school…
- June
- High
- 21°C
- Low
- 12°C
- Rain
- 85 mm
The first thing you need to know about Oslo in June is the light. Around the summer solstice on June 21, the city gets roughly 18.5 hours of direct sunlight, and true darkness…
- July
- High
- 21°C
- Low
- 14°C
- Rain
- 145 mm
The first thing to know about July in Oslo is the light. The sun rises before 4:30 a.m. and doesn't set until after 10 p.m., leaving nearly 19 hours of daylight and a twilight that…
- August
- High
- 20°C
- Low
- 12°C
- Rain
- 95 mm
August in Oslo sits in a sweet spot that the other summer months don't quite match. July is technically warmer by a degree, but it dumps 145mm of rain on the city. June has the…
- September
- High
- 16°C
- Low
- 10°C
- Rain
- 95 mm
September in Oslo is when summer quietly packs its bags. Daylight drops from roughly 15 hours at the start of the month to about 12 by month's end, and you'll feel that shift in…
- October
- High
- 10°C
- Low
- 5°C
- Rain
- 84 mm
October in Oslo is defined by one relentless fact. The light is leaving fast. The city loses roughly 3 to 4 minutes of daylight every single day, dropping from about 11 hours at…
- November
- High
- 4°C
- Low
- 0°C
- Rain
- 66 mm
November in Oslo is defined by darkness. The sun rises after 8:30 and drops below the horizon before 15:30, leaving roughly 7 hours of grey, filtered daylight. Average temperatures…
- December
- High
- 0°C
- Low
- -5°C
- Rain
- 58 mm
The first thing you need to know about Oslo in December is that the sun barely shows up. You'll get roughly 6 hours of daylight, with sunrise around 9:15 and sunset by 15:15. That…