Grytviken weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Poor
Best time to visit: November – January
What is the weather like in Grytviken in September?
In September, Grytviken is freezing cold: daytime highs average 0 °C, and nights often drop below freezing (−2 °C). The sea averages 0.4 °C – swimming is only for the hardy. The sun is scarce, with only about 4 hours a day. Precipitation, often as snow, falls on about 19 days, totalling 128 mm. Snow falls on about 19 days. All in all, September is not an ideal month for a holiday in Grytviken.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 0 | 2 | 6 |
| Day | 0° | 0° | 2° |
| Night | −3° | −2° | −1° |
| Sea | 0° | 0° | 1° |
| Sun | 3 h | 4 h | 5 h |
| Rain days | 21 | 19 | 21 |
More details for September
- Daylight
- 11 h 34 min06:34 – 18:08
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 27 km/haverage daily peakAll months
- Cloud cover
- 88 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 19 days1 cm or more of fresh snowAll months
- Time zone
- UTC−2Atlantic/South_Georgia
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %12 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Grytviken in September: quick answers
Is Grytviken hot in September?
No. In September, Grytviken is freezing cold: daytime highs average 0 °C and nights drop to about −2 °C.
Can you swim in Grytviken in September?
Only if you don't mind cold water: in September the sea averages just 0.4 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Grytviken in September?
It rains often – on about 19 days, adding up to 128 mm.
Grytviken month by month
The whole year in GrytvikenAll destinations: South GeorgiaWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences