Monthly Climate
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Best time to visit Omsk

June is the best time to visit Omsk for general sightseeing, with average highs of 23 °C and about 10 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 June comfort 90/100
The least cloud June 55 % average cloud cover
The least rain February 13 mm
Warmth July 24 °C
Cooler weather January -13 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 June 90 23 °C 10
2 August 88 22 °C 11
3 July 87 24 °C 11
4 May 78 18 °C 8
5 September 70 15 °C 8
6 April 41 9.1 °C 7
7 October 36 6.8 °C 8
8 January 33 -13 °C 5
9 February 32 -11 °C 4
10 March 31 -2.7 °C 5
11 December 29 -10 °C 7
12 November 29 -4.0 °C 8

When to think twice

November scores lowest with about 8 wet days and highs near -4.0 °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 -13.3 °C 15 mm 81 %
February -10.8 °C 13 mm 77 %
March -2.7 °C 18 mm 68 %
April 9.1 °C 29 mm 62 %
May 17.9 °C 37 mm 56 %
June 22.6 °C 53 mm 55 %
July 23.9 °C 64 mm 57 %
August 21.7 °C 63 mm 60 %
September 15.0 °C 33 mm 67 %
October 6.8 °C 33 mm 74 %
November -4.0 °C 30 mm 82 %
December -10.4 °C 22 mm 86 %

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.