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Hongseong, South Korea climate
Cfa Humid subtropical
Hongseong has a strongly seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 85°F, while the coldest is January averaging around 20°F at night. Precipitation totals about 53 inches a year and is strongly seasonal — August alone averages 12.6 inches while January barely receives 1.33 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)Hongseong climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 38 | 42 | 51 | 63 | 72 | 79 | 83 | 85 | 79 | 69 | 55 | 42 |
| Avg temp (°F) | 29 | 32 | 40 | 51 | 62 | 71 | 77 | 78 | 69 | 58 | 45 | 33 |
| Avg low (°F) | 20 | 22 | 29 | 40 | 52 | 62 | 70 | 71 | 60 | 46 | 35 | 24 |
| Precipitation (in) | 1.3 | 1.5 | 1.8 | 3.1 | 4.1 | 5.1 | 11.6 | 12.6 | 6.5 | 2.2 | 2.3 | 1.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 38 | 42 | 51 | 63 | 72 | 79 |
| Avg temp (°F) | 29 | 32 | 40 | 51 | 62 | 71 |
| Avg low (°F) | 20 | 22 | 29 | 40 | 52 | 62 |
| Precipitation (in) | 1.3 | 1.5 | 1.8 | 3.1 | 4.1 | 5.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 83 | 85 | 79 | 69 | 55 | 42 |
| Avg temp (°F) | 77 | 78 | 69 | 58 | 45 | 33 |
| Avg low (°F) | 70 | 71 | 60 | 46 | 35 | 24 |
| Precipitation (in) | 11.6 | 12.6 | 6.5 | 2.2 | 2.3 | 1.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 57 | 55 | 55 | 59 | 68 | 73 | 64 | 58 | 49 | 57 | 63 |
| Relative humidity (%) | 72 | 72 | 76 | 79 | 81 | 83 | 88 | 86 | 78 | 71 | 72 | 73 |
| Wind speed (mph) | 11.2 | 10.3 | 9.5 | 8.4 | 7.3 | 5.7 | 7.0 | 7.0 | 7.9 | 9.1 | 10.5 | 11.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 57 | 55 | 55 | 59 | 68 |
| Relative humidity (%) | 72 | 72 | 76 | 79 | 81 | 83 |
| Wind speed (mph) | 11.2 | 10.3 | 9.5 | 8.4 | 7.3 | 5.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 64 | 58 | 49 | 57 | 63 |
| Relative humidity (%) | 88 | 86 | 78 | 71 | 72 | 73 |
| Wind speed (mph) | 7.0 | 7.0 | 7.9 | 9.1 | 10.5 | 11.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Seosan, a weather station, about 24 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.