Ilulissat weather in September 2025

Expect 41°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Ilulissat in September. Check more long-term weather averages for Ilulissat in September before you book your next holiday to Greenland in 2025/2026.

  • 41°F maximum daytime temperature in September in Ilulissat41
    41°F max day temperature
  • 4 hours of sunshine per day
  • 9 days with some rainfall in September in Ilulissat9
    9 days with some rainfall
  • 32°F minimum night-time temperature in September in Ilulissat32
    32°F min night temperature
  • 13 hours of daylight per day in September in Ilulissat13
    13 hours of daylight per day
  • No heat & humidity in September in Ilulissat0
    No heat & humidity
  • 1.4 inches monthly rainfall in September in Ilulissat1.4
    1.4 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in September in Ilulissat1
    1 (Low) UV index
  • 37°F sea temperature in September in Ilulissat37
    37°F sea temperature

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The September weather guide for Greenland (Ilulissat) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How cold is it in Ilulissat in September?

Daytime temperatures usually reach 41°F in Ilulissat in September, falling to 32°F at night.

How sunny is it in Ilulissat in September?

There are normally 4 hours of bright sunshine each day in Ilulissat in September - that's 30% of daylight hours.

How warm is the sea around Ilulissat in September?

The average sea temperature around Ilulissat in September is 37°F.

Does it rain in Ilulissat in September?

There are usually 9 days with some rain in Ilulissat in September and the average monthly rainfall is 1.4 inches. Rain may fall as snow in this month.

Ilulissat September sunrise & sunset times

Browse the sunrise and sunset times for Ilulissat in September 2025. Select a month to view Ilulissat sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 04:45 20:00
Monday, 15th September 2025 05:40 18:57
Tuesday, 30th September 2025 06:36 17:50

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