Home › Cities › South Korea › Muan
Muan, South Korea climate
Cfa Humid subtropical
Muan has a seasonal mild-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 −2°C at night. Precipitation totals about 1124 mm a year and is strongly seasonal — July alone averages 206 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 figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsMuan climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 8 | 12 | 18 | 22 | 26 | 29 | 30 | 27 | 22 | 15 | 8 |
| Avg temp (°C) | 2 | 3 | 7 | 13 | 18 | 22 | 26 | 27 | 23 | 17 | 11 | 4 |
| Avg low (°C) | −2 | −1 | 2 | 8 | 13 | 18 | 23 | 23 | 19 | 12 | 6 | 0 |
| Precipitation (mm) | 30 | 34 | 82 | 62 | 73 | 161 | 206 | 189 | 154 | 49 | 52 | 32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 8 | 12 | 18 | 22 | 26 |
| Avg temp (°C) | 2 | 3 | 7 | 13 | 18 | 22 |
| Avg low (°C) | −2 | −1 | 2 | 8 | 13 | 18 |
| Precipitation (mm) | 30 | 34 | 82 | 62 | 73 | 161 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 30 | 27 | 22 | 15 | 8 |
| Avg temp (°C) | 26 | 27 | 23 | 17 | 11 | 4 |
| Avg low (°C) | 23 | 23 | 19 | 12 | 6 | 0 |
| Precipitation (mm) | 206 | 189 | 154 | 49 | 52 | 32 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 8 | 7 | 8 | 7 | 7 | 8 | 11 | 10 | 7 | 5 | 7 | 10 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | — | 2 | 7 | 0.3 | — | — | — |
| Days with low ≤ 0°C (days) | 16 | 14 | 5 | 0.1 | — | — | — | — | — | — | 1 | 9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 8 | 7 | 8 | 7 | 7 | 8 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | — |
| Days with low ≤ 0°C (days) | 16 | 14 | 5 | 0.1 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 10 | 7 | 5 | 7 | 10 |
| Days with high ≥ 32°C (days) | 2 | 7 | 0.3 | — | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 1 | 9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 66 | 60 | 58 | 60 | 73 | 73 | 64 | 61 | 50 | 58 | 66 |
| Clear days (≤ 30% cloud) | 3 | 4 | 7 | 7 | 7 | 2 | 3 | 6 | 6 | 10 | 7 | 4 |
| Partly cloudy days (30–70%) | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 10 | 10 | 12 | 12 | 11 |
| Cloudy days (≥ 70%) | 18 | 14 | 14 | 13 | 15 | 18 | 19 | 15 | 13 | 9 | 12 | 16 |
| Relative humidity (%) | 75 | 73 | 75 | 79 | 83 | 86 | 90 | 87 | 82 | 76 | 75 | 75 |
| Wind speed (km/h) | 17.3 | 16.2 | 14.6 | 12.5 | 10.9 | 8.7 | 10.5 | 10.5 | 11.2 | 13.0 | 14.6 | 16.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 66 | 60 | 58 | 60 | 73 |
| Clear days (≤ 30% cloud) | 3 | 4 | 7 | 7 | 7 | 2 |
| Partly cloudy days (30–70%) | 10 | 10 | 10 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 18 | 14 | 14 | 13 | 15 | 18 |
| Relative humidity (%) | 75 | 73 | 75 | 79 | 83 | 86 |
| Wind speed (km/h) | 17.3 | 16.2 | 14.6 | 12.5 | 10.9 | 8.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 64 | 61 | 50 | 58 | 66 |
| Clear days (≤ 30% cloud) | 3 | 6 | 6 | 10 | 7 | 4 |
| Partly cloudy days (30–70%) | 9 | 10 | 10 | 12 | 12 | 11 |
| Cloudy days (≥ 70%) | 19 | 15 | 13 | 9 | 12 | 16 |
| Relative humidity (%) | 90 | 87 | 82 | 76 | 75 | 75 |
| Wind speed (km/h) | 10.5 | 10.5 | 11.2 | 13.0 | 14.6 | 16.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Mokpo, 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.