Monthly Climate
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Best time to visit Grytviken

February is the best time to visit Grytviken for general sightseeing, with average highs of 4.9 °C and about 18 wet days.

It depends what you are going for

One month rarely wins on everything. These are the best months on each measure taken on its own.

If you want Best month On that measure
Sightseeing and walking February comfort 14/100
A beach holiday January sea 3.4 °C
The least cloud December 82 % average cloud cover
The least rain November 117 mm
Warmth February 4.9 °C
Cooler weather July -1.0 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 February 14 4.9 °C 18 0
2 December 12 3.2 °C 19 0
3 November 12 2.4 °C 18 0
4 January 12 4.3 °C 20 0
5 September 11 -0.2 °C 18 0
6 March 11 4.3 °C 20 0
7 June 9 -0.5 °C 19 0
8 April 9 2.8 °C 20 0
9 May 9 0.7 °C 19 0
10 July 8 -1.0 °C 19 0
11 October 8 1.1 °C 19 0
12 August 8 -0.8 °C 19 0

For a beach holiday

January scores highest, with a sea temperature of 3.4 °C and air temperatures around 4.3 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 3.4 °C 4.3 °C 84 % 0
February 3.8 °C 4.9 °C 84 % 0
March 3.6 °C 4.3 °C 84 % 0
April 3.0 °C 2.8 °C 84 % 0
May 2.1 °C 0.7 °C 83 % 0
June 1.2 °C -0.5 °C 84 % 0
July 0.6 °C -1.0 °C 84 % 0
August 0.4 °C -0.8 °C 85 % 0
September 0.4 °C -0.2 °C 84 % 0
October 0.7 °C 1.1 °C 84 % 0
November 1.5 °C 2.4 °C 83 % 0
December 2.5 °C 3.2 °C 82 % 0

When to think twice

August scores lowest with about 19 wet days and highs near -0.8 °C. That does not make it a bad month — it depends entirely on what you are travelling for. The numbers are all here; the judgement is yours.

The full year

Month Avg high Rainfall Cloud
January 4.3 °C 136 mm 84 %
February 4.9 °C 131 mm 84 %
March 4.3 °C 154 mm 84 %
April 2.8 °C 147 mm 84 %
May 0.7 °C 136 mm 83 %
June -0.5 °C 128 mm 84 %
July -1.0 °C 135 mm 84 %
August -0.8 °C 137 mm 85 %
September -0.2 °C 130 mm 84 %
October 1.1 °C 121 mm 84 %
November 2.4 °C 117 mm 83 %
December 3.2 °C 119 mm 82 %

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: comfort score, beach score, season boundaries. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.