Weather & Climate in Grytviken, South Georgia and the South Sandwich Islands
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grytviken has a cool climate with an average annual temperature of 34°F (1°C). Winters average 40°F in January while summers reach 27°F in July / relatively mild seasonal variation. Annual precipitation totals 61.0 inches (wetter than the 38-inch national average). The area receives 37.6 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 13 feet.
Temperature
40°F Jan (4°C)
27°F Jul (-3°C)
| Annual Average | 34.0°F |
| 37% below US avg | |
| January Average | 40°F (4°C) |
| July Average | 27°F (-3°C) |
Geography
| Elevation | 13 ft (4 m) |
| Coordinates | 54.2811°S, 36.5092°W |
| Timezone | Atlantic/South_Georgia |
Precipitation & Snow
Air Quality
Earthquake History
13 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Mar 8, 2020 | South Georgia Island region | M4.9 | 110 km | 10 km |
| Jul 28, 2002 | South Georgia Island region | M4.8 | 96 km | 10 km |
| Feb 25, 2003 | South Georgia Island region | M4.6 | 68 km | 10 km |
| Feb 19, 2020 | South Georgia Island region | M4.6 | 101 km | 10 km |
| Sep 19, 2022 | South Georgia Island region | M4.6 | 107 km | 9 km |
| Mar 2, 2021 | South Georgia Island region | M4.6 | 110 km | 10 km |
| Jun 18, 2022 | South Georgia Island region | M4.5 | 148 km | 10 km |
| Aug 5, 2022 | South Georgia Island region | M4.5 | 115 km | 10 km |
| Mar 30, 2020 | South Georgia Island region | M4.4 | 108 km | 10 km |
| Jun 23, 2020 | South Georgia Island region | M4.3 | 125 km | 10 km |
| Sep 20, 2015 | South Georgia Island region | M4.3 | 131 km | 14 km |
| Apr 28, 2020 | South Georgia Island region | M4.3 | 118 km | 10 km |
| Aug 9, 2000 | South Georgia Island region | M4.3 | 111 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (4°C) | 4.2 in | |
| February | 41°F (5°C) | 5.6 in | Warmest |
| March | 39°F (4°C) | 5.8 in | |
| April | 35°F (2°C) | 6.0 in | |
| May | 30°F (-1°C) | 6.1 in | Wettest |
| June | 29°F (-2°C) | 5.5 in | |
| July | 27°F (-3°C) | 5.6 in | Coldest |
| August | 29°F (-2°C) | 5.7 in | |
| September | 31°F (-1°C) | 4.8 in | |
| October | 34°F (1°C) | 3.9 in | |
| November | 36°F (2°C) | 4.1 in | |
| December | 38°F (3°C) | 3.8 in | Driest |
Grytviken has a seasonal temperature swing of 13°F / from 27°F in July to 41°F in February. Total annual precipitation is 61.0 inches, with May being the wettest month (6.1") and December the driest (3.8").