Monthly Climate
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Best time to visit Longyearbyen

July is the best time to visit Longyearbyen for general sightseeing, with average highs of 8.2 °C and about 7 wet days. The comfortable season runs roughly June to August.

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 July comfort 47/100
The least cloud April 77 % average cloud cover
The least rain June 18 mm
Warmth July 8.2 °C
Cooler weather March -12 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 July 47 8.2 °C 7
2 August 38 6.8 °C 9
3 June 37 3.3 °C 5
4 May 33 -1.6 °C 6
5 April 32 -8.1 °C 7
6 February 31 -12 °C 7
7 March 30 -12 °C 9
8 January 29 -11 °C 9
9 October 28 -4.0 °C 9
10 December 28 -9.6 °C 10
11 September 27 2.4 °C 10
12 November 26 -6.8 °C 10

When to think twice

November scores lowest with about 10 wet days and highs near -6.8 °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 -11.0 °C 44 mm 83 %
February -11.5 °C 33 mm 83 %
March -11.6 °C 36 mm 81 %
April -8.1 °C 24 mm 77 %
May -1.6 °C 22 mm 79 %
June 3.3 °C 18 mm 80 %
July 8.2 °C 32 mm 84 %
August 6.8 °C 40 mm 84 %
September 2.4 °C 46 mm 87 %
October -4.0 °C 42 mm 88 %
November -6.8 °C 48 mm 86 %
December -9.6 °C 47 mm 84 %

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.