Oslo in January
In January, Oslo averages 0°C (31°F) during the day and -5°C (23°F) at night, with frequent rain — about 19 days of the month see precipitation (77 mm total).
Off-peakConditions are deeply cold — proper winter gear is essential. Expect daily rain or showers, often in heavy bursts.
January is one of the wetter and less comfortable months in Oslo. If your dates are flexible, consider a different time of year.
How January compares to the rest of the year in Oslo
January is one of the coolest months in Oslo (12th of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 11°C below the annual average (10°C). January runs 1°C cooler than December (1°C) and warms a further 2°C into February (2°C).
January sunrise & sunset in Oslo
Times shown for Oslo local time (Europe/Oslo), calculated for the 15th of January. They shift by a few minutes day to day across the month.
Photography light in Oslo — January
Golden-hour and blue-hour windows for the 15th of January, in Oslo's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Oslo in January
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on January's tier (Off-peak) and Oslo's popularity.
Crowds & pricing — January in Oslo
This is off-peak for Oslo — the lowest prices of the year and the fewest crowds, but with real trade-offs: some restaurants, hotels, and beach businesses may close for the season; weather conditions can make outdoor activities unpredictable; and a handful of seasonal sights run reduced hours or close entirely. Great if you prefer a quiet local rhythm and don't mind the climate giving you reasons to choose indoor activities.
Why this tier: challenging tourism weather
Sun & mosquito risk — January in Oslo
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
🥶 Bitter cold — Oslo in January
Gear: Snow rare but air is freezing. Insulated coat, hat, and gloves still required — wind chill is the real enemy.
Oslo in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 0°C / 31°F | -5°C / 23°F | 77 mm | 19 | — |
| February | 2°C / 35°F | -4°C / 25°F | 70 mm | 16 | — |
| March | 5°C / 41°F | -2°C / 28°F | 50 mm | 14 | — |
| April | 11°C / 51°F | 1°C / 35°F | 52 mm | 13 | — |
| May | 16°C / 60°F | 7°C / 44°F | 76 mm | 17 | — |
| June | 21°C / 69°F | 12°C / 53°F | 80 mm | 17 | — |
| July | 22°C / 71°F | 14°C / 56°F | 102 mm | 21 | — |
| August | 20°C / 68°F | 12°C / 54°F | 98 mm | 19 | — |
| September | 16°C / 61°F | 10°C / 49°F | 97 mm | 17 | — |
| October | 9°C / 49°F | 5°C / 40°F | 99 mm | 19 | — |
| November | 4°C / 39°F | 0°C / 33°F | 86 mm | 17 | — |
| December | 1°C / 33°F | -4°C / 25°F | 66 mm | 17 | — |
Other cities with similar January weather
🌍 See the full ranked list of climate twins for Oslo in January →
Frequently asked questions
How hot is Oslo in January?
In January, Oslo averages a high of 0°C (31°F) and a low of -5°C (23°F) — generally cold.
Does it rain a lot in Oslo in January?
January is quite rainy in Oslo, with about 19 rainy days on average.
Is January a good time to visit Oslo?
January is cold but on the rainy side. It suits travelers who are comfortable with cold weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Oslo in January?
Pack heavy winter layers, a coat, hat and gloves, plus a compact umbrella or rain jacket. See the full January packing list for Oslo for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.