Long-term weather forecast
Long-term weather forecast

May 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
  • The average high temperature in May: 15.8°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).

  • The average low temperature in May: 6.5°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).

  • The average rainfall in May: 53mm

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

  • The average rainfall days in May: 5 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).

  • The average sea temperature in May: 10.7°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).

  • The average daylight in May: 17h

The month with the longest days is June (Average daylight: 19h).
The month with shortest days is December (Average daylight: 6h).

  • The average sunshine in May: 7.1h

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

  • The average UV index in May: 4

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).