Best Time to Visit Oslo
Norway · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
Recommended Months
Based on temperature comfort, low precipitation, and sunshine hours, the best time to visit Oslo is:
June → July → August
June scores 55/100 — the highest-rated month for travel.
Monthly Ratings (0-100)
Scores are weighted: temperature comfort (50%), low precipitation (30%), sunshine (20%). Higher is better.
| Month | Overall Score | Temp Comfort | Precipitation | Sunshine | Bar |
|---|---|---|---|---|---|
| January | 0 | 0 | 0 | 0 | |
| February | 0 | 0 | 0 | 0 | |
| March | 0 | 0 | 0 | 0 | |
| April | 7 | 14 | 0 | 0 | |
| May | 22 | 45 | 0 | 0 | |
| June | 36 | 72 | 0 | 0 | |
| July | 35 | 70 | 0 | 0 | |
| August | 34 | 69 | 0 | 0 | |
| September | 26 | 52 | 0 | 0 | |
| October | 13 | 26 | 0 | 0 | |
| November | 1 | 2 | 0 | 0 | |
| December | 0 | 0 | 0 | 0 |
Monthly Temperature Comfort
| Month | Mean Temp | Comfort Level |
|---|---|---|
| January | -1.9°C (28.6°F) | Cold (Below 0°C) |
| February | -0.5°C (31.1°F) | Cold (Below 0°C) |
| March | 1.8°C (35.2°F) | Cool (0-9°C) |
| April | 5.9°C (42.6°F) | Cool (0-9°C) |
| May | 12.0°C (53.6°F) | Mild (10-17°C) |
| June | 17.5°C (63.5°F) | Mild (10-17°C) |
| July | 17.1°C (62.8°F) | Mild (10-17°C) |
| August | 16.8°C (62.2°F) | Mild (10-17°C) |
| September | 13.4°C (56.1°F) | Mild (10-17°C) |
| October | 8.1°C (46.6°F) | Cool (0-9°C) |
| November | 3.3°C (37.9°F) | Cool (0-9°C) |
| December | -1.7°C (28.9°F) | Cold (Below 0°C) |
Monthly Precipitation Rating
| Month | Rainfall (mm) | Rainy Days | Rating |
|---|---|---|---|
| January | 71.6 mm | 7.8 | Wet |
| February | 62.6 mm | 7.6 | Wet |
| March | 55.1 mm | 8.8 | Moderate |
| April | 50.1 mm | 10.0 | Moderate |
| May | 66.7 mm | 13.4 | Wet |
| June | 91.4 mm | 15.2 | Wet |
| July | 142.1 mm | 19.8 | Very Wet |
| August | 91.1 mm | 16.4 | Wet |
| September | 85.5 mm | 14.8 | Wet |
| October | 96.4 mm | 16.4 | Wet |
| November | 67.9 mm | 12.8 | Wet |
| December | 77.8 mm | 10.2 | Wet |
Monthly Sunshine Rating
| Month | Sunshine (hrs/day) | Rating |
|---|---|---|
| January | 2.9 hrs | Low |
| February | 5.1 hrs | Moderate |
| March | 7.4 hrs | Good |
| April | 10.3 hrs | Excellent |
| May | 12.4 hrs | Excellent |
| June | 13.4 hrs | Excellent |
| July | 11.9 hrs | Excellent |
| August | 10.6 hrs | Excellent |
| September | 7.7 hrs | Good |
| October | 4.8 hrs | Moderate |
| November | 2.4 hrs | Low |
| December | 1.7 hrs | Low |
Season-by-Season Breakdown
Spring (Mar-May)
Temperature: 6.6°C (43.9°F)
Rainfall: 57.3mm avg
Sunshine: 10.0 hrs/day
Humidity: 67.6%
Rainy Days: 10.7/mo
This is the cool season. Pack warm layers and plan indoor activities.
Summer (Jun-Aug)
Temperature: 17.1°C (62.8°F)
Rainfall: 108.2mm avg
Sunshine: 12.0 hrs/day
Humidity: 71.7%
Rainy Days: 17.1/mo
Mild transitional weather — comfortable for most activities.
Autumn (Sep-Nov)
Temperature: 8.3°C (46.9°F)
Rainfall: 83.3mm avg
Sunshine: 5.0 hrs/day
Humidity: 83.7%
Rainy Days: 14.7/mo
Mild transitional weather — comfortable for most activities.
Winter (Dec-Feb)
Temperature: -1.4°C (29.5°F)
Rainfall: 70.7mm avg
Sunshine: 3.2 hrs/day
Humidity: 84.1%
Rainy Days: 8.5/mo
This is the cool season. Pack warm layers and plan indoor activities.
Frequently Asked Questions
What is the best time to visit Oslo?
Based on our data-driven analysis, the best months to visit Oslo are June, July, August, when temperatures are comfortable, rainfall is lower, and sunshine is plentiful. June scores 55/100, the highest-rated month.
What is the hottest month in Oslo?
June is the hottest month with an average temperature of 17.5°C (63.5°F).
What is the coldest month in Oslo?
January is the coldest month with an average temperature of -1.9°C (28.6°F).
When is the rainy season in Oslo?
July is the wettest month with an average of 142.1mm of precipitation. Oslo experiences about 153.0 rainy days per year. The driest month is April with 50.1mm.
What should I pack for a trip to Oslo?
Packing recommendations depend on the season of your visit. Based on the climate data, pack lightweight, breathable clothing if visiting during the warm months (June is hottest at 17.5°C). For cooler months, bring layers and a warm jacket (January averages -1.9°C). A waterproof jacket or umbrella is recommended year-round as Oslo receives 958.0mm of annual precipitation. Sun protection is important, especially during months with high UV index.
There's something about Oslo in winter that feels like the city is performing for itself. I arrived in February expecting gloom and found magic: 50cm of snow, 4 hours of daylight, and the Holmenkollen ski jump lit up against the dark sky. Norwegians don't hibernate — they ski to work, light candles everywhere, and embrace kos, their version of coziness. Summer (June-August) is its opposite: 22°C, 18 hours of light, the fjord dotted with boats. May 17 (Constitution Day) is when the city bursts into bunader and parades. Each season here is a deliberate cultural choice.
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 59.91°, 10.75°. Timezone: Europe/Oslo. Last updated: 2026-07-30.