Monthly weather forecast and climate
Oslo, Norway

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

Weather in January

January, the same as December, in Oslo, Norway, is another subzero cold winter month, with average temperature fluctuating between -1.8°C (28.8°F) and -6.8°C (19.8°F). 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). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Oslo, Norway, with temperature in the range of an average low of -6.8°C (19.8°F) and an average high of -0.9°C (30.4°F). In Oslo, the average high-temperature in February is essentially the same as in January - a still freezing cold -0.9°C (30.4°F). Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Oslo, Norway, with average temperature varying between 3.5°C (38.3°F) and -3.3°C (26.1°F). In March, the average high-temperature marginally rises, from a subzero cold -0.9°C (30.4°F) in February, to a cold 3.5°C (38.3°F). Weather in March »

Weather in April

April is a chilly spring month in Oslo, Norway, with average temperature varying between 0.8°C (33.4°F) and 9.1°C (48.4°F). In April, the average high-temperature rises, from a wintry 3.5°C (38.3°F) in March, to a chilly 9.1°C (48.4°F). Weather in April »

Weather in May

May, the last month of the spring, in Oslo, is a moderate month, with average temperature ranging between max 15.8°C (60.4°F) and min 6.5°C (43.7°F). In May, the average high-temperature increases, from a frosty 9.1°C (48.4°F) in April, to a moderate 15.8°C (60.4°F). Weather in May »

Weather in June

June, the first month of the summer, in Oslo, is an agreeable month, with average temperature fluctuating between 20.4°C (68.7°F) and 10.6°C (51.1°F). In June, the average high-temperature marginally rises, from a moderate 15.8°C (60.4°F) in May, to an agreeable 20.4°C (68.7°F). Weather in June »

Weather in July

July, the same as June, in Oslo, Norway, is an agreeable summer month, with average temperature ranging between max 21.5°C (70.7°F) and min 12.2°C (54°F). July is the warmest month, with an average high-temperature of 21.5°C (70.7°F) and an average low-temperature of 12.2°C (54°F). Weather in July »

Weather in August

August, the last month of the summer, in Oslo, is another pleasant month, with average temperature fluctuating between 11.3°C (52.3°F) and 20.1°C (68.2°F). In Oslo, the average high-temperature in August is essentially the same as in July - a still pleasant 20.1°C (68.2°F). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderate month in Oslo, Norway, with average temperature varying between 7.5°C (45.5°F) and 15.1°C (59.2°F). In Oslo, Norway, the average high-temperature in September decreases, from a pleasant 20.1°C (68.2°F) in August, to a mild 15.1°C (59.2°F). Weather in September »

Weather in October

October, the same as September, in Oslo, Norway, is a frosty autumn month, with average temperature varying between 3.8°C (38.8°F) and 9.3°C (48.7°F). In October, the average high-temperature drops, from a moderate 15.1°C (59.2°F) in September, to a frosty 9.3°C (48.7°F). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Oslo, Norway, with average temperature ranging between min -1.5°C (29.3°F) and max 3.2°C (37.8°F). In Oslo, the average high-temperature decreases, from a chilly 9.3°C (48.7°F) in October, to a cold 3.2°C (37.8°F). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Oslo, Norway, with average temperature varying between -0.5°C (31.1°F) and -5.6°C (21.9°F). In Oslo, the average high-temperature in December slightly decreases, from a cold 3.2°C (37.8°F) in November, to a subzero cold -0.5°C (31.1°F). Weather in December »
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FAQ

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.

How much does it rain in Oslo?

In Oslo, during the entire year, the rain falls for 77 days and collects up to 763mm (30.04") of precipitation.

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 driest month in Oslo?

The month with the least rainfall is February when the rain falls for 4 days and typically collects 36mm (1.42") of precipitation.

What month is the sea coldest in Oslo?

With an average sea temperature of 3°C (37.4°F), March is the month with the coldest seawater in Oslo, Norway.

When are the longest days in Oslo?

With an average of 18.7h of daylight, June has the longest days of the year.

What month has the most sunshine in Oslo?

The month with the most sunshine is June, with an average of 8.3h of sunshine.

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

Months with the highest UV index are June and July, with an average maximum UV index of 5.

What is the warmest month in Oslo?

The warmest month in Oslo is July, with an average high-temperature of 21.5°C (70.7°F) and an average low-temperature of 12.2°C (54°F).

When is the sea warmest in Oslo?

August is the month with the warmest seawater in Oslo, Norway, with an average sea temperature of 17.9°C (64.2°F).

What is the wettest month in Oslo?

The month with the most rainfall in Oslo is September when the rain falls for 7 days and typically aggregates up to 90mm (3.54") of precipitation.

What is the month with the shortest days in Oslo?

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

What is the month with the least sunshine in Oslo?

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

Average temperature
Oslo, Norway

Average temperature - Oslo, Norway

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).

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).

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Average rainfall
Oslo, Norway

Average rainfall - Oslo, Norway

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

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Average rainfall days
Oslo, Norway

Average rainfall days - Oslo, Norway

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).

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Average sea temperature
Oslo, Norway

Average sea temperature - Oslo, Norway

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).

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Average daylight / Average sunshine
Oslo, Norway

Average daylight / Average sunshine - Oslo, Norway

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

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

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