Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Ilulissat, Greenland

  • Average high temperature in September: 5°C

The warmest month (with the highest average high temperature) is July (11°C).
The month with the lowest average high temperature is March (-12°C).

  • Average low temperature in September: 0°C

The month with the highest average low temperature is July (5°C).
The coldest month (with the lowest average low temperature) is March (-19°C).

  • Average rainfall in September: 35mm

The wettest month (with the highest rainfall) is September (35mm).
Driest months (with the lowest rainfall) are January and March (12mm).

  • Average rainfall days in September: 9 days

Months with the highest number of rainy days are March, April, September and November (9 days).
Months with the lowest number of rainy days are February, May, June and July (7 days).

  • Average sea temperature in September: 3.4°C

The best month for swimming (with the highest average sea temperature) is September (3.4°C).
Coldest months (with the lowest average sea temperature) are February and March (-1.4°C).

  • Average daylight in September: 13h

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

  • Average sunshine in September: 4h

The month with most sunshine is June (Average sunshine: 10h).
Months with least sunshine are January and December (Average sunshine: 0).

  • Average UV index in September: 1

The month with the highest UV index is June (UV index 4).
Months with the lowest UV index are January, February, October, November and December (UV index 0).