Monthly Climate
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Best time to visit Reykjavík

July is the best time to visit Reykjavík for general sightseeing, with average highs of 14 °C and about 14 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 60/100
A beach holiday July sea 11 °C
The least cloud October 72 % average cloud cover
The least rain June 80 mm
Warmth July 14 °C
Cooler weather January 1.2 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 July 60 14 °C 14 3
2 August 53 13 °C 15 0
3 June 53 13 °C 14 2
4 September 37 10 °C 17 0
5 May 35 9.3 °C 16 0
6 October 22 6.0 °C 15 1
7 April 19 5.6 °C 16 0
8 November 16 2.8 °C 16 0
9 March 14 2.5 °C 17 0
10 February 13 1.3 °C 17 0
11 December 12 1.3 °C 17 0
12 January 12 1.2 °C 17 0

For a beach holiday

July scores highest, with a sea temperature of 11 °C and air temperatures around 14 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 5.3 °C 1.2 °C 78 % 0
February 5.1 °C 1.3 °C 76 % 0
March 4.9 °C 2.5 °C 75 % 0
April 5.6 °C 5.6 °C 73 % 0
May 7.2 °C 9.3 °C 73 % 0
June 9.6 °C 13 °C 76 % 2
July 11 °C 14 °C 77 % 3
August 11 °C 13 °C 77 % 0
September 10 °C 10 °C 77 % 0
October 8.3 °C 6.0 °C 72 % 1
November 6.8 °C 2.8 °C 75 % 0
December 5.8 °C 1.3 °C 76 % 0

When to think twice

January scores lowest with about 17 wet days and highs near 1.2 °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 1.2 °C 131 mm 78 %
February 1.3 °C 131 mm 76 %
March 2.5 °C 118 mm 75 %
April 5.6 °C 104 mm 73 %
May 9.3 °C 92 mm 73 %
June 12.5 °C 80 mm 76 %
July 14.3 °C 86 mm 77 %
August 13.3 °C 104 mm 77 %
September 10.3 °C 134 mm 77 %
October 6.0 °C 121 mm 72 %
November 2.8 °C 121 mm 75 %
December 1.3 °C 133 mm 76 %

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.