Oslo
Norway
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Oslo, Norway

The scenic view of the Vigeland sculpture park in Oslo, Norway, at dusk
The scenic view of the Vigeland sculpture park in Oslo, Norway, at dusk
January, the same as December, in Oslo, Norway, is a freezing cold winter month, with average temperature ranging between max -1.8°C (28.8°F) and min -6.8°C (19.8°F).

Temperature

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

Rainfall

In January, the rain falls for 6 days. Throughout January, 49mm (1.9") of precipitation is accumulated. In Oslo, during the entire year, the rain falls for 77 days and collects up to 763mm (30") of precipitation.

Sea temperature

In January, the average sea temperature is 4.2°C (39.6°F). 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 January, the average length of the day in Oslo is 6.9h.

Sunshine

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

UV index

Months with the lowest UV index 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 the exposure to the Sun's UV radiation for ordinary individuals.
In January, the average maximum UV index of 0 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the coldest month in Oslo?

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 in Oslo.

What is the temperature in January in Oslo?

In Oslo, Norway, in January, the average high-temperature is -1.8°C (28.8°F), and the average low-temperature is -6.8°C (19.8°F).

How much does it rain in Oslo in January?

In January, in Oslo, the rain falls for 6 days. Throughout January, 49mm (1.9") of precipitation is accumulated.

What is the sea temperature in January in Oslo?

In January, the average sea temperature in Oslo is 4.2°C (39.6°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

How many hours of daylight does Oslo have in January?

The average length of the day in January is 6.9h.

How many hours of sunshine does Oslo have in January?

The average sunshine in January in Oslo is 1.3h.

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

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

What is the UV index intensity in January in Oslo?

In January, the average daily maximum UV index in Oslo, Norway, is 0. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the UV radiation.
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).
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 lowest rainfall) is February (36mm).

Average rainfall days in January - Oslo, Norway
  • Average rainfall days in January: 6 days

Months with the highest number of rainy days are August, October and November (8 days).
The month with the lowest number of 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: 6.9h

The month with the longest days is June (Average daylight: 18.7h).
The month with shortest days is December (Average daylight: 6.1h).

  • Average sunshine in January: 1.3h

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

Average UV index in January - Oslo, Norway
  • Average UV index in January: 0

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