South Georgia & South Sandwich weather in September 2025

Q: How cold is it in the South Georgia & South Sandwich in September?

Daytime temperatures usually reach 2°C in Grytviken, South Georgia & South Sandwich in September, falling to -4°C at night.

Q: How sunny is it in the South Georgia & South Sandwich in September?

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

Q: Is the sea cold around the South Georgia & South Sandwich in September?

The average sea temperature around Grytviken, South Georgia & South Sandwich in September is 0°C.

Q: Does it rain in the South Georgia & South Sandwich in September?

There are usually 18 days with some rain in Grytviken, South Georgia & South Sandwich in September and the average monthly rainfall is 138mm. Rain may fall as snow in this month.

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

36
36°F max day temperature
2
2 hours of sunshine per day
18
18 days with some rainfall
25
25°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
5.4
5.4 inches of monthly rainfall
2
2 (Low) UV index
32
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)

How cold is it in the South Georgia & South Sandwich in September?

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

How sunny is it in the South Georgia & South Sandwich in September?

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

How warm is the sea around the South Georgia & South Sandwich in September?

The average sea temperature around Grytviken, South Georgia & South Sandwich in September is 32°F.

Does it rain in the South Georgia & South Sandwich in September?

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

South Georgia & South Sandwich September sunrise & sunset times

Browse the sunrise and sunset times for South Georgia & South Sandwich in September 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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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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South Georgia and South Sandwich Islands - quick facts
Time difference	UK -2 hours
Language(s)	English
Currency	Pound Sterling
Electricity	G plug (230V)
Driving side	Left
Why visit?	Nature
Tourist info	Government of South Georgia & the South Sandwich Islands