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Wŏnsan, North Korea climate
Cwa Monsoon-influenced humid subtropical
Wŏnsan has a strongly seasonal cool-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is August with an average daily high near 81°F, while the coldest is January averaging around 21°F at night. Precipitation totals about 49 inches a year and is strongly seasonal — July alone averages 11.9 inches while January barely receives 0.92 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Wŏnsan climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 36 | 40 | 49 | 62 | 70 | 75 | 80 | 81 | 74 | 66 | 52 | 40 |
| Avg temp (°F) | 29 | 32 | 41 | 52 | 62 | 68 | 74 | 75 | 67 | 57 | 44 | 33 |
| Avg low (°F) | 21 | 24 | 33 | 43 | 53 | 61 | 69 | 69 | 60 | 48 | 36 | 25 |
| Precipitation (in) | 0.9 | 1.0 | 1.3 | 2.2 | 3.8 | 4.9 | 11.9 | 10.7 | 6.5 | 2.2 | 2.8 | 1.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 36 | 40 | 49 | 62 | 70 | 75 |
| Avg temp (°F) | 29 | 32 | 41 | 52 | 62 | 68 |
| Avg low (°F) | 21 | 24 | 33 | 43 | 53 | 61 |
| Precipitation (in) | 0.9 | 1.0 | 1.3 | 2.2 | 3.8 | 4.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 80 | 81 | 74 | 66 | 52 | 40 |
| Avg temp (°F) | 74 | 75 | 67 | 57 | 44 | 33 |
| Avg low (°F) | 69 | 69 | 60 | 48 | 36 | 25 |
| Precipitation (in) | 11.9 | 10.7 | 6.5 | 2.2 | 2.8 | 1.2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 51 | 55 | 57 | 61 | 70 | 75 | 71 | 62 | 51 | 54 | 51 |
| Relative humidity (%) | 80 | 76 | 71 | 69 | 70 | 75 | 83 | 85 | 80 | 76 | 77 | 79 |
| Wind speed (mph) | 7.3 | 6.8 | 6.3 | 5.5 | 4.4 | 3.4 | 3.7 | 3.7 | 4.0 | 4.8 | 6.1 | 7.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 51 | 55 | 57 | 61 | 70 |
| Relative humidity (%) | 80 | 76 | 71 | 69 | 70 | 75 |
| Wind speed (mph) | 7.3 | 6.8 | 6.3 | 5.5 | 4.4 | 3.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 71 | 62 | 51 | 54 | 51 |
| Relative humidity (%) | 83 | 85 | 80 | 76 | 77 | 79 |
| Wind speed (mph) | 3.7 | 3.7 | 4.0 | 4.8 | 6.1 | 7.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Wonsan, a weather station, about 3 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.