January weather forecast
Oslo, Norway

The Vigeland sculpture park in Oslo, Norway, at dusk
The Vigeland sculpture park in Oslo, Norway, at dusk

Weather in January

January, like December, is a freezing cold winter month in Oslo, Norway, with an average temperature fluctuating between -6.8°C (19.8°F) and -1.8°C (28.8°F).

Temperature

With an average high-temperature of -1.8°C (28.8°F) and an average low-temperature of -6.8°C (19.8°F), January is the coldest month.

Rainfall

In Oslo, in January, it is raining for 6 days, with typically 49mm (1.93") of accumulated precipitation. In Oslo, during the entire year, the rain falls for 77 days and collects up to 763mm (30.04") of precipitation.

Sea temperature

In January, the average sea temperature in Oslo is 4.2°C (39.6°F).
Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

Daylight

In Oslo, 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 08:32 and sunset at 16:28 CET.

Sunshine

In January, the average sunshine is 1.3h.

UV index

The months with the lowest UV index in Oslo are January, November and December, with an average maximum UV index of 0. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 0 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
[Resources]

FAQ

What is the coldest month in Oslo?

January is the coldest month, with an average high-temperature of -1.8°C (28.8°F) and an average low-temperature of -6.8°C (19.8°F).

How many days does it rain in January in Oslo?

In Oslo, in January, it is raining for 6 days, with typically 49mm (1.93") of accumulated precipitation.

How cold is the water in January in Oslo?

In Oslo, 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.

What is the average length of the day in January in Oslo?

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

What time are sunrise and sunset in January in Oslo?

On the first day of January in Oslo, sunrise is at 09:18 and sunset at 15:22. On the last day of the month, sunrise is at 08:32 and sunset at 16:28 CET.

How many hours of sunshine does Oslo have in January?

The average sunshine duration in January is 1.3h.

What are the months with the lowest UV index in Oslo?

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

What is the UV index intensity in January in Oslo?

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

Average temperature in January
Oslo, Norway

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).

[Resources]

Average rainfall in January
Oslo, Norway

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).

[Resources]

Average rainfall days in January
Oslo, Norway

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).

[Resources]

Average sea temperature in January
Oslo, Norway

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).

[Resources]

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

Average daylight in January / Average sunshine in January - Oslo, Norway
  • Average daylight in January: 6h and 53min

The month with the longest days is June (Average daylight: 18h and 41min).
The month with the shortest days is December (Average daylight: 6h and 4min).

  • Average sunshine in January: 1.3h

The month with the most sunshine is June (Average sunshine: 8.3h).
The month with the least sunshine is December (Average sunshine: 1.1h).

[Resources]

Average UV index in January
Oslo, Norway

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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location