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Iksan, South Korea climate
Cfa Humid subtropical
Iksan has a strongly seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 86°F, while the coldest is January averaging around 24°F at night. Precipitation totals about 52 inches a year and is strongly seasonal — July alone averages 11.3 inches while January barely receives 1.14 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)Iksan climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 42 | 51 | 62 | 72 | 79 | 84 | 86 | 79 | 69 | 56 | 43 |
| Avg temp (°F) | 32 | 35 | 43 | 53 | 63 | 71 | 78 | 79 | 71 | 60 | 48 | 36 |
| Avg low (°F) | 24 | 27 | 34 | 44 | 54 | 64 | 72 | 73 | 63 | 51 | 39 | 28 |
| Precipitation (in) | 1.1 | 1.4 | 1.9 | 3.3 | 3.5 | 5.7 | 11.3 | 11.0 | 6.2 | 2.1 | 2.5 | 1.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 42 | 51 | 62 | 72 | 79 |
| Avg temp (°F) | 32 | 35 | 43 | 53 | 63 | 71 |
| Avg low (°F) | 24 | 27 | 34 | 44 | 54 | 64 |
| Precipitation (in) | 1.1 | 1.4 | 1.9 | 3.3 | 3.5 | 5.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 86 | 79 | 69 | 56 | 43 |
| Avg temp (°F) | 78 | 79 | 71 | 60 | 48 | 36 |
| Avg low (°F) | 72 | 73 | 63 | 51 | 39 | 28 |
| Precipitation (in) | 11.3 | 11.0 | 6.2 | 2.1 | 2.5 | 1.6 |
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 (%) | 77 | 74 | 74 | 73 | 75 | 78 | 85 | 84 | 81 | 78 | 78 | 78 |
| Wind speed (mph) | 5.9 | 6.0 | 6.2 | 6.0 | 5.6 | 4.6 | 5.5 | 5.0 | 4.7 | 4.8 | 5.3 | 5.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 57 | 55 | 55 | 59 | 68 |
| Relative humidity (%) | 77 | 74 | 74 | 73 | 75 | 78 |
| Wind speed (mph) | 5.9 | 6.0 | 6.2 | 6.0 | 5.6 | 4.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 64 | 58 | 49 | 57 | 63 |
| Relative humidity (%) | 85 | 84 | 81 | 78 | 78 | 78 |
| Wind speed (mph) | 5.5 | 5.0 | 4.7 | 4.8 | 5.3 | 5.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Gunsan, a weather station, about 18 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.