Weather in Oslo 🇳🇴
Monthly weather averages & travel planning
January
Avg Temp
-2°C
Rain Days
11 days
Sun Hours
3 hrs
Humidity
65%
Europe › 🇳🇴 Norway › Oslo
Updated: March 2026
Is January a Good Time to Visit Oslo?
1/10
Avoid
January is a avoid time to visit Oslo (1/10). Average highs of -2°C and 3 sunshine hours daily make conditions workable, though not exceptional. January suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 11 potential rain days. February offers a similar profile at lower hotel rates if dates are flexible. The -2°C highs require proper cold-weather clothing; many visitors underestimate how far the wind chill drops the perceived temperature, particularly near water or at elevated viewpoints. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.
vs December:0°C avg high
Oslo's January weather is shaped by atmospheric forces that make the data more than just numbers. The -2°C average high reflects persistent high-latitude air masses that hold temperatures below the seasonal average for the region. As a result, 3 daily sunshine hours are recorded on average, and rainfall of 71mm is distributed across approximately 11 days because precipitation events tend to be frequent but short-lived.
-2°C
28°F
Avg High
-6°C
21°F
Avg Low
11 days
71 mm total
Rain Days
3h
per day avg
Sunshine
65%
Moderate
Humidity
Temperature in Oslo in January
The narrow 4°C gap between daytime and overnight temperatures, characteristic of coastal cities with maritime moderation, means a single mid-layer works across the whole day. Humidity averages 65%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. The UV index of 1 is low, meaning sun exposure is minimal concern and sunscreen is largely optional. Winds are calm at an average 14 km/h, so wind-chill is not a factor in planning your clothing. In Fahrenheit: 28°F average high, 21°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature Trends
High
Low
Rainfall (mm)
0-20 mm21-50 mm51-100 mm100+ mm
What to Wear in Oslo in January
Morning-6°CBefore the day warms up
Afternoon-2°CPeak daytime temperature
Evening-3°CAfter sunset cools down
Packing for Oslo in January means dressing for -2°C days and -6°C evenings. Layering is key: a thermal base, mid-layer fleece, and a windproof outer jacket for -2°C highs that feel colder in the wind. Evening temperatures settle at -6°C, a modest 4°C drop that a light cardigan or denim jacket covers. European cobblestones reward low-profile walking shoes over flip-flops or heels, with cushioned trainers or leather walking shoes being the practical choice. A compact foldable umbrella weighs almost nothing and earns its keep across 11 potential rainy days.
Local tip: Oslo's cobbled streets turn slippery in the rain. Waterproof walking shoes with a non-slip sole outperform fashionable footwear on wet stone, and you'll cover significantly more ground in comfort.
Events in Oslo in January
January has no major festivals or public holidays in Oslo, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
What to Pack for Oslo in January
Based on -2°C average highs and 11 rainy days
- Heavy winter coat (rated below -5°C)
- Thermal underlayers in merino wool or moisture-wicking synthetic
- Insulated, waterproof boots
- Wool hat, thick gloves, and a windproof scarf
- Compact folding umbrella
- Waterproof outer layer or packable rain jacket
- Quick-dry clothing that recovers fast after a shower
- Comfortable walking shoes (a second pair lets the first air out overnight)
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Oslo in January
- Vigorous walking tour of the UNESCO heritage districtMidday (12-2pm)The -2°C peak temperature provides ideal conditions for brisk sightseeing walks
- Cycling the riverside or park circuitAfternoon (1-4pm)Cool dry air makes long cycling sessions comfortable without overheating
- Explore hilltop viewpoints and fortressesMorning for clear viewsCold-weather atmospheric clarity gives the longest sightlines of the year
- Open-air Christmas or seasonal marketsAfternoon into eveningCool temperatures make festive outdoor markets genuinely atmospheric
- Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
- Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
- Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
- Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningJanuary brings distinct seasonal changes to public green spaces worth exploring
- Warm up with traditional hot dishes: local stew, fondue, or braised specialities at a neighbourhood restaurantLunch (12-2pm) or dinner (7-9pm)Cold-weather cuisine is a genuine cultural experience and the best local restaurants serve their heartiest dishes in cooler months
Why is Oslo cool in January?
In January, Oslo feels the full influence of the continental polar air mass, which dominates mid-latitude interiors during winter. Cold, dry air from the north suppresses temperatures to -2°C during the day, dropping further to -6°C at night when radiative cooling is greatest. Precipitation tends to be low, as the cold air holds little moisture. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions
Oslo in January
In January, Oslo experiences average highs of -2°C (28°F) and lows of -6°C (21°F). Expect around 11 rainy days and 3 hours of sunshine per day, with humidity averaging 65%. The 4°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an extra jacket is essential for evenings. UV exposure is moderate at index 1.
Oslo typically sees 11 rainy days in January, with total precipitation of around 71mm. Rain is moderate and manageable. Showers tend to pass quickly, and a light rain layer or foldable umbrella is sufficient protection for most days. For context, the driest month in Oslo typically sees 4-6 fewer rain days than January.
Pack a heavy winter coat, thermal underlayers, waterproof insulated boots, and accessories including hats, gloves, and a scarf for Oslo in January. Temperatures regularly fall to -6°C and rarely climb above -2°C during the day. Layering is the key strategy: a base layer, mid-layer insulation, and a windproof outer shell provide flexibility as you move between heated indoor spaces and cold outdoor streets.
January can be a challenging time to visit Oslo due to cold temperatures that rarely climb above -2°C. Indoor attractions, cultural sites, and covered markets are the strongest options this month. If your dates are flexible, the drier or milder months offer significantly easier travel conditions.
The average high temperature in Oslo in January is -2°C (28°F), and the average low is -6°C (21°F). The mean daily temperature is approximately -4°C (25°F). The day-to-night range of 4°C is narrow, typical of coastal or maritime cities. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.
The best month to visit Oslo is generally May. May offers the most sunshine at 12 hours per day and only 11 rainy days. Average temperatures reach 16°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around May gives you the best chance of dry, bright weather.
January is shoulder or low season in Oslo, meaning fewer tourists and generally lower prices than peak months. With 3 sunshine hours and 11 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.
In January, Oslo suits a range of activities thanks to cold temperatures of -2°C. Mix of indoor and outdoor activities works well given the moderate chance of rain. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. Cosy cafes and cultural venues make ideal retreats on overcast days.
January ranks 10th sunniest of the year in Oslo, with an average 3 daily sunshine hours. The driest months are March, February, and April. July is the hottest month (22°C avg high); January is the coolest (-2°C). From here, temperatures rise 2°C into February. Compared to last month (December: 0°C high, 11 rain days), January is cooler and equally dry. January is one of the least sunny months, but that often means lower prices and fewer fellow tourists.
Year-Round Climate
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | -2°C | -6°C | 11 | 3h | View |
| February | 0°C | -6°C | 9 | 5h | View |
| March | 4°C | -3°C | 8 | 7h | View |
| April | 10°C | 1°C | 9 | 10h | View |
| May | 16°C | 6°C | 11 | 12h | View |
| June | 19°C | 11°C | 12 | 13h | View |
| July | 22°C | 14°C | 13 | 13h | View |
| August | 20°C | 13°C | 14 | 11h | View |
| September | 16°C | 9°C | 11 | 8h | View |
| October | 9°C | 4°C | 12 | 5h | View |
| November | 4°C | 0°C | 12 | 2h | View |
| December | 0°C | -5°C | 11 | 2h | View |
January
11 rain days, 3h sun
-2°-6°
February
9 rain days, 5h sun
0°-6°
March
8 rain days, 7h sun
4°-3°
April
9 rain days, 10h sun
10°1°
May
11 rain days, 12h sun
16°6°
June
12 rain days, 13h sun
19°11°
July
13 rain days, 13h sun
22°14°
August
14 rain days, 11h sun
20°13°
September
11 rain days, 8h sun
16°9°
October
12 rain days, 5h sun
9°4°
November
12 rain days, 2h sun
4°0°
December
11 rain days, 2h sun
0°-5°
Other Months in Oslo
Plan Your Trip to Oslo
Nearby Destinations
Cities within 500 km with comparable weather conditions
Data Sources for Oslo
Climate normals represent 30-year averages (1991-2020). Individual years may vary.