Olonkin City
Svalbard and Jan Mayen
Long-term weather forecast
Long-term weather forecast

September weather forecast and Climate
Olonkin City, Svalbard and Jan Mayen

  • The average high temperature in September: 3°C

Warmest months (with the highest average high temperature) are July and August (5°C).
Months with the lowest average high temperature are January, February and March (-5°C).

  • The average low temperature in September: -1°C

The month with the highest average low temperature is August (1°C).
The coldest month (with the lowest average low temperature) is March (-11°C).

  • The average rainfall in September: 88mm

The wettest month (with the highest rainfall) is October (92mm).
The driest month (with the lowest rainfall) is June (41mm).

  • The average rainfall days in September: 19 days

Months with the highest number of rainy days are January, October, November and December (20 days).
Months with the lowest number of rainy days are May and June (13 days).

  • The average sea temperature in September: 6°C

The best month for swimming (with the highest average sea temperature) is August (7°C).
Coldest months (with the lowest average sea temperature) are January, February, March and April (1°C).

  • The average daylight in September: 13h

Months with the longest days are June and July (Average daylight: 24h).
The month with shortest days is December (Average daylight: 0h).

  • The average sunshine in September: 2h

Months with most sunshine are May and June (Average sunshine: 5h).
Months with least sunshine are January, November and December (Average sunshine: 0).

  • The average UV index in September: 1

Months with the highest UV index are June and July (UV index 3).
Months with the lowest UV index are January, February, March, October, November and December (UV index 0).