Monthly Climate
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Best time to visit Hulan Ergi

September is the best time to visit Hulan Ergi for general sightseeing, with average highs of 20 °C and about 7 wet days. The comfortable season runs roughly May to June.

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 September comfort 91/100
The least cloud January 31 % average cloud cover
The least rain January 2 mm
Warmth July 28 °C
Cooler weather January -13 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 September 91 20 °C 7
2 May 91 21 °C 6
3 June 83 27 °C 11
4 August 82 26 °C 11
5 July 72 28 °C 13
6 April 61 14 °C 4
7 October 56 11 °C 4
8 December 39 -11 °C 2
9 November 39 -1.2 °C 2
10 February 39 -6.2 °C 1
11 January 39 -13 °C 0
12 March 37 3.3 °C 2

When to think twice

March scores lowest with about 2 wet days and highs near 3.3 °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 -12.6 °C 2 mm 31 %
February -6.2 °C 3 mm 35 %
March 3.3 °C 7 mm 44 %
April 13.5 °C 22 mm 51 %
May 21.4 °C 37 mm 56 %
June 26.5 °C 79 mm 59 %
July 28.0 °C 125 mm 59 %
August 25.9 °C 95 mm 54 %
September 20.3 °C 53 mm 44 %
October 11.0 °C 23 mm 38 %
November -1.2 °C 5 mm 35 %
December -11.0 °C 5 mm 33 %

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.