South Georgia & South Sandwich weather in December 2025

Expect daytime maximum temperatures of 6°C in South Georgia & South Sandwich in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 16 days with some rainfall and typically 90 mm of rainfall in the month.

• 6
  6°C max day temperature
• 3
  3 hours of sunshine per day
• 16
  16 days with some rainfall
• 0
  0°C min night temperature
• 17
  17 hours of daylight per day
• 0
  No heat & humidity
• 90
  90 mm of monthly rainfall
• 8
  8 (Very High) UV index
• 2
  2°C sea temperature

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The December 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 / mm)  |  Imperial (°F / inches)

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South Georgia & South Sandwich December sunrise & sunset times

Browse the sunrise and sunset times for South Georgia & South Sandwich in December 2025. Select a month to view South Georgia & South Sandwich sunrise and sunset times for the next 12 months. The South Georgia & South Sandwich sunrise and sunset times shown below are for Grytviken.

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