Average annual temperature is 1.7 °C
Absolute maximum temperature: 15.3 °C
Absolute minimum temperature: -13.8 °C
Number of sunny days: 44 days
Number of rainy days: 233 days
Number of snow days: 88 days
Look at detailed online map of Grytviken
* Weather data for Grytviken South Georgia and the South Sandwich Islands is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 14.0 | 15.3 | 10.8 | 7.9 | 8.4 | 5.8 | 5.9 | 7.4 | 4.6 | 9.3 | 8.9 | 14.4 |
| Average daytime temperature (°C) | 8.1 | 7.4 | 5.9 | 3.9 | 3.2 | 1.6 | -0.4 | 0.5 | 0.8 | 4.9 | 4.5 | 5.0 |
| Average temperature (°C) | 5.6 | 5.3 | 4.0 | 2.3 | 1.3 | 0.1 | -3.0 | -1.9 | -1.4 | 2.7 | 2.8 | 3.0 |
| Average night temperature (°C) | 2.9 | 3.3 | 1.9 | 0.3 | -1.0 | -1.6 | -5.7 | -4.5 | -4.0 | 0.1 | 0.8 | 0.9 |
| Absolute minimum temperature (°C) | 0.4 | 0.2 | -0.6 | -4.2 | -6.2 | -9.5 | -11.5 | -10.8 | -13.8 | -6.4 | -3.5 | -2.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 17.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 | 8.0 | 10.0 | 12.0 | 14.0 | 16.0 | 17.0 |
| Daylight mean duration (h) | 16.5 | 14.7 | 12.5 | 10.3 | 8.4 | 7.4 | 7.9 | 9.6 | 11.7 | 13.9 | 15.9 | 17.1 |
| Daylight minimum duration (h) | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 | 7.0 | 7.0 | 8.0 | 10.0 | 12.0 | 15.0 | 16.0 |
| Sunshine mean duration (h) | 5.0 | 2.8 | 2.8 | 3.3 | 1.6 | 1.0 | 2.0 | 2.9 | 3.6 | 5.3 | 5.6 | 4.6 |
| Precipitation (mm) | 266 | 426 | 325 | 268 | 331 | 350 | 287 | 410 | 292 | 265 | 274 | 237 |
| Sunny days | 2 | 0 | 1 | 6 | 3 | 3 | 8 | 3 | 4 | 5 | 6 | 3 |
| Rainy days | 22 | 27 | 23 | 11 | 12 | 9 | 13 | 24 | 23 | 24 | 21 | 24 |
| Snow days | 7 | 1 | 7 | 13 | 16 | 18 | 10 | 4 | 3 | 2 | 3 | 4 |
The best time to visit Grytviken during the most sunny months:
Months with the longest average daylight duration in Grytviken:
The largest precipitation sum in Grytviken is at