Grytviken weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Poor
Best time to visit: November – January
What is the weather like in Grytviken in December?
In December, Grytviken is cold: daytime highs average 4 °C, and nights cool down to about 1 °C. The sea averages 2.6 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Precipitation, often as snow, falls on about 22 days, totalling 135 mm. Snow falls on about 15 days. All in all, December is not an ideal month for a holiday in Grytviken.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 11 | 14 | 11 |
| Day | 3° | 4° | 5° |
| Night | 0° | 1° | 2° |
| Sea | 2° | 3° | 4° |
| Sun | 6 h | 7 h | 6 h |
| Rain days | 20 | 22 | 22 |
More details for December
- Daylight
- 17 h 9 min03:47 – 20:55
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 26 km/haverage daily peakAll months
- Cloud cover
- 85 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 15 days1 cm or more of fresh snowAll months
- Time zone
- UTC−2Atlantic/South_Georgia
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %70 %
- 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 December
- Sunscreen
- Sunglasses & sun hat
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Grytviken in December: quick answers
Is Grytviken hot in December?
No. In December, Grytviken is cold: daytime highs average 4 °C and nights drop to about 1 °C.
Can you swim in Grytviken in December?
Only if you don't mind cold water: in December the sea averages just 2.6 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Grytviken in December?
It rains often – on about 22 days, adding up to 135 mm.
Grytviken month by month
The whole year in GrytvikenAll destinations: South GeorgiaWhere to go in DecemberSea temperature in December
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