South Georgia and South Sandwich Islands · 99 people
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
The year’s records
Annual mean 3°C · wettest around March · prevailing wind NW
Warmest
9.0 °C
Coldest
-1.2 °C
Wettest
40%
Windiest
5.8 m/s
Prevailing
NW
4.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Grytviken over the whole year is 3°C. January is the hottest month, with highs of about 8°C; July is the coldest, with lows of about -2°C. Grytviken has no sharply defined rainy season: the chance of rain on a given day runs from 20% in September, the driest month, to 36% in March, the wettest. Winds in Grytviken are highest in January, averaging 5.1 m/s (18 km/h), and lightest in June, at 4.0 m/s (14 km/h). The prevailing wind is from the NW. The clearest skies in Grytviken come in July, when the sky is typically 78% covered; January is the cloudiest month, at 92%.
Month by month Grytviken climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
8°C
5°C
3°C
33%
92%
5.1 m/s
1
0
22
February
8°C
5°C
3°C
36%
92%
5.1 m/s
1
0
22
March
7°C
4°C
2°C
36%
90%
4.9 m/s
0
0
16
April
5°C
3°C
-1°C
36%
90%
4.9 m/s
0
0
6
May
1°C
0°C
-4°C
25%
84%
4.1 m/s
0
0
2
June
0°C
-1°C
-5°C
29%
85%
4.0 m/s
0
0
0
July
-1°C
-2°C
-7°C
26%
78%
4.5 m/s
0
0
0
August
1°C
-1°C
-5°C
28%
84%
4.9 m/s
0
0
0
September
3°C
1°C
-3°C
20%
86%
4.8 m/s
0
0
1
October
5°C
2°C
-1°C
23%
89%
4.9 m/s
0
0
5
November
7°C
3°C
1°C
32%
89%
5.0 m/s
0
0
15
December
8°C
5°C
2°C
25%
92%
5.1 m/s
0
0
17
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Grytviken weather by season
Year round, Grytviken has days of about -1°C at their warmest in July, its coolest month, and 8°C in January, its warmest; the coolest hours of the day run from -2°C to 5°C through the year, and the average temperature over the year is 3°C around the clock. Rain is most likely around March and least likely around September. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Grytviken weather in winterJune to August
High -0°CLow -1°CRain 28%
Winter in Grytviken has typical daily highs of about -0°C and lows of about -1°C, with a 28% chance of rain on a given day.
Grytviken weather in springSeptember to November
High 5°CLow 2°CRain 25%
Spring in Grytviken has typical daily highs of about 5°C and lows of about 2°C, with a 25% chance of rain on a given day.
Grytviken weather in summerDecember to February
High 8°CLow 5°CRain 31%
Summer in Grytviken has typical daily highs of about 8°C and lows of about 5°C, with a 31% chance of rain on a given day.
Grytviken weather in autumnMarch to May
High 4°CLow 2°CRain 32%
Autumn in Grytviken has typical daily highs of about 4°C and lows of about 2°C, with a 32% chance of rain on a given day.
When is the rainy season in Grytviken?
Grytviken has no sharply defined rainy season: the chance of rain on a given day runs from 20% in September, the driest month, to 36% in March, the wettest.
What time of year is Grytviken windiest?
Winds in Grytviken are highest in January, averaging 5.1 m/s (18 km/h), and lightest in June, at 4.0 m/s (14 km/h). The prevailing wind is from the NW.
What is the average temperature in Grytviken year round?
The average temperature in Grytviken over the whole year is 3°C. January is the hottest month, with highs of about 8°C; July is the coldest, with lows of about -2°C.