Monthly Climate
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Best time to visit Hŭngnam

September is the best time to visit Hŭngnam for general sightseeing, with average highs of 22 °C and about 9 wet days. The comfortable season runs roughly May to June. The sea stays above 20 °C from July to September.

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 89/100
A beach holiday August sea 24 °C
The least cloud December 37 % average cloud cover
The least rain February 28 mm
Warmth August 26 °C
Cooler weather January 0.06 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 September 89 22 °C 9 68
2 June 88 22 °C 9 53
3 May 83 18 °C 8 30
4 October 79 17 °C 7 39
5 July 73 25 °C 14 68
6 August 71 26 °C 14 74
7 April 64 13 °C 6 18
8 November 48 9.1 °C 8 15
9 March 39 7.0 °C 6 19
10 December 36 2.5 °C 5 21
11 February 36 2.0 °C 5 21
12 January 35 0.06 °C 6 20

For a beach holiday

August scores highest, with a sea temperature of 24 °C and air temperatures around 26 °C. The sea is above 20 °C from July to September.

Month Sea Air Sunshine Beach score
January 5.3 °C 0.06 °C 40 % 20
February 4.0 °C 2.0 °C 40 % 21
March 4.5 °C 7.0 °C 44 % 19
April 7.7 °C 13 °C 48 % 18
May 12 °C 18 °C 55 % 30
June 18 °C 22 °C 64 % 53
July 22 °C 25 °C 70 % 68
August 24 °C 26 °C 67 % 74
September 22 °C 22 °C 55 % 68
October 18 °C 17 °C 42 % 39
November 13 °C 9.1 °C 42 % 15
December 8.1 °C 2.5 °C 37 % 21

When to think twice

January scores lowest with about 6 wet days and highs near 0.06 °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 0.1 °C 32 mm 40 %
February 2.0 °C 28 mm 40 %
March 7.0 °C 33 mm 44 %
April 13.2 °C 56 mm 48 %
May 18.3 °C 87 mm 55 %
June 21.9 °C 100 mm 64 %
July 25.1 °C 215 mm 70 %
August 25.6 °C 231 mm 67 %
September 21.9 °C 124 mm 55 %
October 16.6 °C 65 mm 42 %
November 9.1 °C 68 mm 42 %
December 2.5 °C 36 mm 37 %

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.