Monthly Climate
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Best time to visit Wŏnju

May is the best time to visit Wŏnju for general sightseeing, with average highs of 22 °C and about 9 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 May comfort 91/100
The least cloud December 43 % average cloud cover
The least rain January 24 mm
Warmth August 28 °C
Cooler weather January 1.4 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 May 91 22 °C 9
2 September 88 24 °C 9
3 October 85 18 °C 5
4 June 83 26 °C 10
5 April 76 17 °C 8
6 August 61 28 °C 16
7 July 60 28 °C 18
8 November 52 10 °C 7
9 March 51 10 °C 7
10 February 40 4.6 °C 5
11 January 39 1.4 °C 4
12 December 39 3.2 °C 5

When to think twice

December scores lowest with about 5 wet days and highs near 3.2 °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 1.4 °C 24 mm 45 %
February 4.6 °C 34 mm 48 %
March 10.2 °C 52 mm 53 %
April 16.9 °C 86 mm 54 %
May 22.3 °C 102 mm 57 %
June 26.5 °C 134 mm 66 %
July 28.0 °C 292 mm 76 %
August 28.5 °C 233 mm 69 %
September 24.2 °C 131 mm 60 %
October 18.3 °C 59 mm 47 %
November 10.3 °C 46 mm 47 %
December 3.2 °C 28 mm 43 %

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.