nomadseason

Monthly climate in Grytviken, South Georgia and the South Sandwich Islands

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Grytviken features a ice cap climate ET).Temperatures typically range between -4 °C (25 °F) and 2 °C (37 °F) through the year, but rarely can drop to -15 °C (6 °F) or can rise to as high as 9 °C (48 °F).The average annual precipitation amounts to about 1536 mm (60.5 inches) and receives 242 rainy days on the 1 mm (0.04 inches) threshold annually.Grytviken enjoys an average of 1397 hours of sunshine throughout the year, and daylight varies from 7 hours 23 minutes to 17 hours 4 minutes per day.

Monthly average temperatures in Grytviken, South Georgia and the South Sandwich Islands §

The warmest months in Grytviken are January, February and December, with daily mean temperatures ranging from 2 to 2 °C (35 - 37 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from -4 to -3 °C (25 - 27 °F) throughout the day. On average each year, Grytviken experiences 0 days above 25 °C (77.0 °F) and 233 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Grytviken, South Georgia and the South Sandwich Islands.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 8°C
(46°F)		 9°C
(48°F)		 7°C
(45°F)		 6°C
(43°F)		 5°C
(42°F)		 4°C
(40°F)		 3°C
(38°F)		 4°C
(39°F)		 4°C
(39°F)		 5°C
(41°F)		 5°C
(41°F)		 6°C
(44°F)
Mean maximum 6°C
(43°F)		 7°C
(45°F)		 6°C
(43°F)		 5°C
(42°F)		 4°C
(40°F)		 1°C
(35°F)		 2°C
(36°F)		 2°C
(36°F)		 3°C
(37°F)		 4°C
(39°F)		 4°C
(40°F)		 6°C
(43°F)
Average high 3°C
(38°F)		 3°C
(39°F)		 3°C
(37°F)		 2°C
(36°F)		 -0°C
(32°F)		 -2°C
(29°F)		 -3°C
(28°F)		 -1°C
(30°F)		 -0°C
(32°F)		 0°C
(33°F)		 2°C
(36°F)		 3°C
(38°F)
Daily mean 2°C
(36°F)		 2°C
(37°F)		 2°C
(35°F)		 1°C
(33°F)		 -2°C
(29°F)		 -3°C
(27°F)		 -4°C
(25°F)		 -3°C
(27°F)		 -2°C
(30°F)		 -1°C
(30°F)		 1°C
(34°F)		 2°C
(35°F)
Average low 1°C
(33°F)		 1°C
(34°F)		 0°C
(32°F)		 -1°C
(31°F)		 -3°C
(27°F)		 -4°C
(24°F)		 -6°C
(22°F)		 -5°C
(24°F)		 -3°C
(27°F)		 -3°C
(27°F)		 -1°C
(30°F)		 0°C
(33°F)
Mean minimum -2°C
(29°F)		 -2°C
(28°F)		 -3°C
(26°F)		 -5°C
(24°F)		 -8°C
(18°F)		 -8°C
(17°F)		 -12°C
(11°F)		 -10°C
(15°F)		 -7°C
(19°F)		 -6°C
(21°F)		 -4°C
(25°F)		 -2°C
(29°F)
Minimum -3°C
(27°F)		 -3°C
(27°F)		 -5°C
(23°F)		 -6°C
(21°F)		 -9°C
(16°F)		 -11°C
(13°F)		 -15°C
(6°F)		 -13°C
(8°F)		 -11°C
(12°F)		 -9°C
(16°F)		 -6°C
(21°F)		 -2°C
(28°F)

Compare climate in Grytviken with other places

Compare temperature, precipitation, sunshine, UV index in Grytviken, South Georgia and the South Sandwich Islands with other places around the world.

Monthly average precipitation in Grytviken, South Georgia and the South Sandwich Islands §

Grytviken usually has the most precipitation in March, April and August, with an average of 22 rainy days and 148 mm (5.8 inches) of precipitation per month.The driest months in Grytviken are February, June and November. On average, 114 mm (4.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grytviken, South Georgia and the South Sandwich Islands.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 120 (4.7) 117 (4.6) 142 (5.6) 143 (5.6) 134 (5.3) 118 (4.6) 120 (4.7) 159 (6.2) 138 (5.4) 118 (4.7) 106 (4.2) 122 (4.8)
Average precipitation days (≥ 1 mm) 19 18 22 23 20 19 19 22 20 19 20 21

Monthly sunshine hours in Grytviken, South Georgia and the South Sandwich Islands §

The sunniest months in Grytviken are January, November and December, when the sun shines an average of 5 hours 57 minutes a day.Least sunny months in Grytviken: May, June and July receive an average of 1 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grytviken, South Georgia and the South Sandwich Islands.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 149 145 122 100 68 49 45 73 99 144 186 211
Mean daily daylight hours 16h 27m 14h 36m 12h 25m 10h 15m 8h 21m 7h 23m 7h 54m 9h 36m 11h 42m 13h 54m 15h 57m 17h 4m

Solar UV radiation in Grytviken, South Georgia and the South Sandwich Islands §

Grytviken experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 11 - 16, which corresponds to the Extreme category of sun exposure.May, June and July are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Grytviken UV Index data.

Average daily maximum UV levels by month for Grytviken, South Georgia and the South Sandwich Islands.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 11 9 6 4 2 1 2 3 6 11 16 16