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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 30°C, while the coldest is January averaging around −7°C at night. Precipitation totals about 1358 mm a year and is strongly seasonal — August alone averages 320 mm while January barely receives 34 mm.
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 (°C) | 3 | 5 | 11 | 17 | 22 | 26 | 28 | 30 | 26 | 20 | 13 | 6 |
| Avg temp (°C) | −2 | 0 | 5 | 11 | 17 | 21 | 25 | 26 | 21 | 14 | 7 | 1 |
| Avg low (°C) | −7 | −6 | −1 | 4 | 11 | 17 | 21 | 21 | 16 | 8 | 2 | −4 |
| Precipitation (mm) | 34 | 38 | 45 | 78 | 105 | 129 | 294 | 320 | 164 | 55 | 59 | 37 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 3 | 5 | 11 | 17 | 22 | 26 |
| Avg temp (°C) | −2 | 0 | 5 | 11 | 17 | 21 |
| Avg low (°C) | −7 | −6 | −1 | 4 | 11 | 17 |
| Precipitation (mm) | 34 | 38 | 45 | 78 | 105 | 129 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 30 | 26 | 20 | 13 | 6 |
| Avg temp (°C) | 25 | 26 | 21 | 14 | 7 | 1 |
| Avg low (°C) | 21 | 21 | 16 | 8 | 2 | −4 |
| Precipitation (mm) | 294 | 320 | 164 | 55 | 59 | 37 |
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 (km/h) | 18.0 | 16.6 | 15.3 | 13.5 | 11.7 | 9.1 | 11.3 | 11.3 | 12.6 | 14.6 | 16.9 | 18.5 |
| 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 (km/h) | 18.0 | 16.6 | 15.3 | 13.5 | 11.7 | 9.1 |
| 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 (km/h) | 11.3 | 11.3 | 12.6 | 14.6 | 16.9 | 18.5 |
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.