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

December 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
December, the first month of the winter, in Oslo, is also a subzero cold month, with temperature in the range of an average high of -0.5°C (31.1°F) and an average low of -5.6°C (21.9°F).

Temperature

In Oslo, the average high-temperature in December marginally drops, from a wintry 3.2°C (37.8°F) in November, to a freezing cold -0.5°C (31.1°F). In Oslo, the average low-temperature is -5.6°C (21.9°F).

Rainfall

In December, the rain falls for 6 days. Throughout December, 55mm (2.17") of precipitation is accumulated. In Oslo, during the entire year, the rain falls for 77 days and collects up to 763mm (30.04") of precipitation.

Sea temperature

In December, the average sea temperature in Oslo, Norway, is 6.3°C (43.3°F).
Note: Swimming in 6.3°C (43.3°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

With an average of 6.1h of daylight, December has the shortest days of the year in Oslo.

Sunshine

With an average of 1.1h of sunshine, December has the least sunshine of the year in Oslo, Norway.

UV index

Months with the lowest UV index in Oslo are January, November and December, with an average maximum UV index of 0. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 0 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged 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 temperature in December in Oslo?

In Oslo, in December, the average high-temperature is -0.5°C (31.1°F), and the average low-temperature is -5.6°C (21.9°F).

How much does it rain in Oslo in December?

In Oslo, Norway, during December, the rain falls for 6 days and regularly aggregates up to 55mm (2.17") of precipitation.

What is the water temperature in December in Oslo?

In December, the average sea temperature in Oslo, Norway, is 6.3°C (43.3°F). Swimming in 6.3°C (43.3°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What is the month with the shortest days in Oslo?

The month with the shortest days in Oslo is December, with an average of 6.1h of daylight.

How many hours of daylight does Oslo have in December?

The average length of the day in December in Oslo, Norway, is 6.1h.

What is the month with the least sunshine in Oslo?

December has the least sunshine of the year in Oslo, Norway, with an average of 1.1h of sunshine.

How long on average sun shines in December in Oslo?

In Oslo, the average sunshine in December is 1.1h.

When is 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.

How high is the UV index in December in Oslo?

The average daily maximum UV index in December in Oslo is 0. A UV Index reading of 2, and below, represents a low health threat from the exposure to the Sun's UV radiation.
Average temperature in December - Oslo, Norway
  • Average high temperature in December: -0.5°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 December: -5.6°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 December - Oslo, Norway
  • Average rainfall in December: 55mm

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

Average rainfall days in December - Oslo, Norway
  • Average rainfall days in December: 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 December - Oslo, Norway
  • Average sea temperature in December: 6.3°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 December / Average sunshine in December - Oslo, Norway
  • Average daylight in December: 6.1h

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 December: 1.1h

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 December - Oslo, Norway
  • Average UV index in December: 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).