Home › Cities › South Korea › Yeosu
Yeosu, South Korea climate
Cwa Monsoon-influenced humid subtropical
Yeosu has a seasonal mild-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is August with an average daily high near 29°C, while the coldest is January averaging around −1°C at night. Precipitation totals about 1541 mm a year and is strongly seasonal — August alone averages 296 mm while January barely receives 28 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)Yeosu climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 8 | 12 | 17 | 22 | 24 | 27 | 29 | 26 | 21 | 15 | 9 |
| Avg temp (°C) | 3 | 4 | 8 | 13 | 18 | 21 | 25 | 26 | 23 | 18 | 11 | 5 |
| Avg low (°C) | −1 | 0 | 4 | 10 | 14 | 19 | 22 | 24 | 20 | 14 | 8 | 1 |
| Precipitation (mm) | 28 | 46 | 86 | 134 | 146 | 198 | 293 | 296 | 163 | 69 | 53 | 30 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 8 | 12 | 17 | 22 | 24 |
| Avg temp (°C) | 3 | 4 | 8 | 13 | 18 | 21 |
| Avg low (°C) | −1 | 0 | 4 | 10 | 14 | 19 |
| Precipitation (mm) | 28 | 46 | 86 | 134 | 146 | 198 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 29 | 26 | 21 | 15 | 9 |
| Avg temp (°C) | 25 | 26 | 23 | 18 | 11 | 5 |
| Avg low (°C) | 22 | 24 | 20 | 14 | 8 | 1 |
| Precipitation (mm) | 293 | 296 | 163 | 69 | 53 | 30 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 61 | 59 | 57 | 59 | 72 | 71 | 63 | 61 | 48 | 54 | 59 |
| Relative humidity (%) | 76 | 72 | 72 | 76 | 80 | 85 | 90 | 86 | 79 | 73 | 73 | 75 |
| Wind speed (mph) | 12.6 | 11.9 | 11.0 | 9.7 | 8.4 | 7.6 | 8.1 | 8.7 | 9.7 | 10.1 | 10.5 | 12.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 61 | 59 | 57 | 59 | 72 |
| Relative humidity (%) | 76 | 72 | 72 | 76 | 80 | 85 |
| Wind speed (mph) | 12.6 | 11.9 | 11.0 | 9.7 | 8.4 | 7.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 63 | 61 | 48 | 54 | 59 |
| Relative humidity (%) | 90 | 86 | 79 | 73 | 73 | 75 |
| Wind speed (mph) | 8.1 | 8.7 | 9.7 | 10.1 | 10.5 | 12.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Yeosu, a weather station, about 9 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.