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Hanam, South Korea climate
Cwa Monsoon-influenced humid subtropical
Hanam 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 −6°C at night. Precipitation totals about 1507 mm a year and is strongly seasonal — July alone averages 440 mm while January barely receives 21 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)Hanam climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 5 | 11 | 18 | 24 | 28 | 29 | 30 | 26 | 20 | 12 | 4 |
| Avg temp (°C) | −2 | 1 | 6 | 13 | 18 | 23 | 25 | 26 | 22 | 15 | 7 | 0 |
| Avg low (°C) | −6 | −4 | 1 | 7 | 13 | 18 | 22 | 23 | 17 | 10 | 3 | −4 |
| Precipitation (mm) | 21 | 32 | 41 | 75 | 104 | 138 | 440 | 362 | 154 | 58 | 56 | 25 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 5 | 11 | 18 | 24 | 28 |
| Avg temp (°C) | −2 | 1 | 6 | 13 | 18 | 23 |
| Avg low (°C) | −6 | −4 | 1 | 7 | 13 | 18 |
| Precipitation (mm) | 21 | 32 | 41 | 75 | 104 | 138 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 30 | 26 | 20 | 12 | 4 |
| Avg temp (°C) | 25 | 26 | 22 | 15 | 7 | 0 |
| Avg low (°C) | 22 | 23 | 17 | 10 | 3 | −4 |
| Precipitation (mm) | 440 | 362 | 154 | 58 | 56 | 25 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 50 | 52 | 55 | 58 | 67 | 75 | 65 | 56 | 46 | 52 | 51 |
| Relative humidity (%) | 76 | 74 | 74 | 74 | 75 | 78 | 85 | 84 | 79 | 75 | 76 | 77 |
| Wind speed (m/s) | 3.3 | 3.3 | 3.2 | 3.1 | 2.8 | 2.3 | 2.7 | 2.6 | 2.5 | 2.7 | 3.1 | 3.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 50 | 52 | 55 | 58 | 67 |
| Relative humidity (%) | 76 | 74 | 74 | 74 | 75 | 78 |
| Wind speed (m/s) | 3.3 | 3.3 | 3.2 | 3.1 | 2.8 | 2.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 65 | 56 | 46 | 52 | 51 |
| Relative humidity (%) | 85 | 84 | 79 | 75 | 76 | 77 |
| Wind speed (m/s) | 2.7 | 2.6 | 2.5 | 2.7 | 3.1 | 3.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Seoul City, a weather station, about 21 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.