Monthly Climate
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Best time to visit Anchorage

July is the best time to visit Anchorage for general sightseeing, with average highs of 18 °C and about 15 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 74/100
A beach holiday June sea 8.8 °C
The least cloud March 61 % average cloud cover
The least rain April 40 mm
Warmth July 18 °C
Cooler weather January -6.6 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 July 74 18 °C 15 14
2 June 71 16 °C 12 14
3 August 68 17 °C 17 10
4 May 50 11 °C 9 12
5 September 48 12 °C 17 0
6 April 31 5.1 °C 9 13
7 March 29 -0.7 °C 10 11
8 February 26 -3.6 °C 11 8
9 January 25 -6.6 °C 12 7
10 November 24 -2.4 °C 12 6
11 October 24 5.0 °C 14 2
12 December 21 -5.2 °C 14 1

For a beach holiday

June scores highest, with a sea temperature of 8.8 °C and air temperatures around 16 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January -0.7 °C -6.6 °C 70 % 7
February -0.8 °C -3.6 °C 70 % 8
March -0.7 °C -0.7 °C 61 % 11
April 0.2 °C 5.1 °C 65 % 13
May 2.4 °C 11 °C 64 % 12
June 8.8 °C 16 °C 70 % 14
July 13 °C 18 °C 75 % 14
August 14 °C 17 °C 72 % 10
September 12 °C 12 °C 73 % 0
October 8.2 °C 5.0 °C 69 % 2
November 4.2 °C -2.4 °C 69 % 6
December 0 °C -5.2 °C 75 % 1

When to think twice

December scores lowest with about 14 wet days and highs near -5.2 °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 -6.6 °C 66 mm 70 %
February -3.6 °C 66 mm 70 %
March -0.7 °C 50 mm 61 %
April 5.1 °C 40 mm 65 %
May 10.7 °C 41 mm 64 %
June 16.1 °C 56 mm 70 %
July 18.0 °C 93 mm 75 %
August 17.0 °C 118 mm 72 %
September 12.4 °C 138 mm 73 %
October 5.0 °C 105 mm 69 %
November -2.4 °C 80 mm 69 %
December -5.2 °C 93 mm 75 %

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.