January weather forecastOslo, Norway

The Vigeland sculpture park in Oslo, Norway, at dusk

January

Weather in January

January in Oslo carries the imprint of a classic Scandinavian winter season, with temperatures regularly plunging below freezing. The city receives merely 1.3 hours of sunshine per day, and the sea temperature drops to 4.2°C (39.6°F). Encased in frost, landmarks like the Royal Palace and Vigeland Sculpture Park offer a striking spectacle. The harsh weather, however, lends itself to indoor activities such as visiting museums or cozying up in local cafés.

Temperature

Oslo witnesses the coldest weather in January, with temperatures averaging a high of -1.8°C (28.8°F) and a low of -6.8°C (19.8°F).

Rainfall

In Oslo, Norway, in January, it is raining for 6 days, with typically 49mm (1.93") of accumulated precipitation. Throughout the year, in Oslo, there are 77 rainfall days, and 763mm (30.04") of precipitation is accumulated.

Sea temperature

In January, the average sea temperature in Oslo is 4.2°C (39.6°F).
Note: In the activity of swimming, this state poses an instant danger to life. Breathing control is completely lost, impeding any form of clear thinking. Employing a specialized swimsuit is crucial to minimize thermal loss.

Daylight

The average length of the day in January is 6h and 53min.
On the first day of January, sunrise is at 09:18 and sunset at 15:22. On the last day of the month, sunrise is at 08:33 and sunset at 16:27 CET.

Sunshine

The average sunshine in January is 1.3h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 0. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index, 0 in January, converts into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Oslo, January registers the lowest temperatures, averaging -1.8°C (28.8°F) at the peak and -6.8°C (19.8°F) at the lowest.

The high-temperature during January is -1.8°C (28.8°F) and the low-temperature is -6.8°C (19.8°F).

In January, the rain falls for 6 days. Throughout January, 49mm (1.93") of precipitation is accumulated.

In Oslo, Norway, the average seawater temperature in January is 4.2°C (39.6°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

In Oslo, Norway, the average day length in January is 6h and 53min.

On the first day of January in Oslo, Norway, sunrise is at 09:18 and sunset at 15:22. On the last day of the month, sunrise is at 08:33 and sunset at 16:27 CET.

In Oslo, the average sunshine duration in January is 1.3h.

January, November and December, with an average maximum UV index of 0, are months with the lowest UV index in Oslo.

In Oslo, Norway, the average daily maximum UV index in January is 0. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

-0.5°C

-1.8°C

-0.9°C

Average low temperature

Average rainfall

Average rainfall days

Average sea temperature

Average daylight

Average sunshine

Average UV index

Average temperature in January
Oslo, Norway

Average high temperature in January: -1.8°C

The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-1.8°C).

Average low temperature in January: -6.8°C

The month with the highest average low temperature is July (12.2°C).
The coldest months (with the lowest average low temperature) are January and February (-6.8°C).

Average rainfall in January
Oslo, Norway

Average rainfall in January: 49mm

The wettest month (with the highest rainfall) is September (90mm).
The driest month (with the least rainfall) is February (36mm).

Average rainfall days in January
Oslo, Norway

Average rainfall days in January: 6 days

The months with the highest number of rainy days are August, October and November (8 days).
The month with the least rainy days is February (4 days).

Average sea temperature in January
Oslo, Norway

Average sea temperature in January: 4.2°C

The best month for swimming (with the highest average sea temperature) is August (17.9°C).
The coldest month (with the lowest average sea temperature) is March (3°C).

Average daylight in January /
Average sunshine in January
Oslo, Norway

Average daylight in January: 6h and 54min

The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).

Average sunshine in January: 1h and 18min

The month with the most sunshine is June (Average sunshine: 8h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).

Average UV index in January
Oslo, Norway

Average UV index in January: 0

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 0).