Grytviken weather in September 2025

Expect 36°F daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Grytviken in September. Check more long-term weather averages for Grytviken in September before you book your next holiday to South Georgia & South Sandwich in 2025/2026.

  • 36°F maximum daytime temperature in September in Grytviken36
    36°F max day temperature
  • 2 hours of sunshine per day
  • 18 days with some rainfall in September in Grytviken18
    18 days with some rainfall
  • 25°F minimum night-time temperature in September in Grytviken25
    25°F min night temperature
  • 12 hours of daylight per day in September in Grytviken12
    12 hours of daylight per day
  • No heat & humidity in September in Grytviken0
    No heat & humidity
  • 5.4 inches monthly rainfall in September in Grytviken5.4
    5.4 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in September in Grytviken2
    2 (Low) UV index
  • 32°F sea temperature in September in Grytviken32
    32°F sea temperature

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The September weather guide for South Georgia & South Sandwich, represented by Grytviken, (Grytviken) 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 Grytviken in September?

Daytime temperatures usually reach 36°F in Grytviken in September, falling to 25°F at night.

How sunny is it in Grytviken in September?

There are normally 2 hours of bright sunshine each day in Grytviken in September - that's 16% of daylight hours.

How warm is the sea around Grytviken in September?

The average sea temperature around Grytviken in September is 32°F.

Does it rain in Grytviken in September?

There are usually 18 days with some rain in Grytviken in September and the average monthly rainfall is 5.4 inches. Rain may fall as snow in this month.

Grytviken September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 07:06 17:47
Monday, 15th September 2025 06:31 18:12
Tuesday, 30th September 2025 05:54 18:39

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