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Daejeon, South Korea climate
Cwa Monsoon-influenced humid subtropical
Daejeon has a strongly seasonal mild-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). 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 1474 mm a year and is strongly seasonal — August alone averages 324 mm while January barely receives 30 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)Daejeon climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 4 | 7 | 13 | 19 | 24 | 28 | 30 | 30 | 26 | 21 | 13 | 6 |
| Avg temp (°C) | −1 | 1 | 6 | 12 | 18 | 23 | 26 | 26 | 21 | 14 | 7 | 1 |
| Avg low (°C) | −7 | −5 | 0 | 6 | 12 | 17 | 22 | 22 | 16 | 8 | 1 | −5 |
| Precipitation (mm) | 30 | 40 | 55 | 84 | 100 | 165 | 323 | 324 | 196 | 65 | 56 | 34 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 4 | 7 | 13 | 19 | 24 | 28 |
| Avg temp (°C) | −1 | 1 | 6 | 12 | 18 | 23 |
| Avg low (°C) | −7 | −5 | 0 | 6 | 12 | 17 |
| Precipitation (mm) | 30 | 40 | 55 | 84 | 100 | 165 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 26 | 21 | 13 | 6 |
| Avg temp (°C) | 26 | 26 | 21 | 14 | 7 | 1 |
| Avg low (°C) | 22 | 22 | 16 | 8 | 1 | −5 |
| Precipitation (mm) | 323 | 324 | 196 | 65 | 56 | 34 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 54 | 55 | 56 | 59 | 69 | 76 | 70 | 63 | 51 | 54 | 53 |
| Relative humidity (%) | 81 | 76 | 75 | 72 | 72 | 73 | 84 | 84 | 82 | 79 | 79 | 81 |
| Wind speed (mph) | 5.4 | 5.8 | 6.0 | 6.1 | 5.6 | 4.6 | 5.1 | 4.8 | 4.5 | 4.4 | 4.8 | 5.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 54 | 55 | 56 | 59 | 69 |
| Relative humidity (%) | 81 | 76 | 75 | 72 | 72 | 73 |
| Wind speed (mph) | 5.4 | 5.8 | 6.0 | 6.1 | 5.6 | 4.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 70 | 63 | 51 | 54 | 53 |
| Relative humidity (%) | 84 | 84 | 82 | 79 | 79 | 81 |
| Wind speed (mph) | 5.1 | 4.8 | 4.5 | 4.4 | 4.8 | 5.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Taejon, a weather station, about 6 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.