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Jiangmen, China climate
Cwa Monsoon-influenced humid subtropical
Jiangmen has a mildly seasonal warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is July with an average daily high near 32°C, while the coldest is January averaging around 12°C at night. Precipitation totals about 1468 mm a year and is strongly seasonal — June alone averages 293 mm while February barely receives 22 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)Jiangmen climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 19 | 21 | 25 | 29 | 31 | 32 | 32 | 31 | 29 | 25 | 20 |
| Avg temp (°C) | 16 | 16 | 19 | 23 | 26 | 28 | 29 | 29 | 28 | 26 | 22 | 17 |
| Avg low (°C) | 12 | 14 | 16 | 20 | 24 | 26 | 26 | 26 | 25 | 23 | 19 | 14 |
| Precipitation (mm) | 27 | 22 | 65 | 114 | 208 | 293 | 200 | 247 | 179 | 61 | 28 | 24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 19 | 21 | 25 | 29 | 31 |
| Avg temp (°C) | 16 | 16 | 19 | 23 | 26 | 28 |
| Avg low (°C) | 12 | 14 | 16 | 20 | 24 | 26 |
| Precipitation (mm) | 27 | 22 | 65 | 114 | 208 | 293 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 31 | 29 | 25 | 20 |
| Avg temp (°C) | 29 | 29 | 28 | 26 | 22 | 17 |
| Avg low (°C) | 26 | 26 | 25 | 23 | 19 | 14 |
| Precipitation (mm) | 200 | 247 | 179 | 61 | 28 | 24 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 70 | 76 | 75 | 76 | 79 | 73 | 73 | 65 | 49 | 52 | 52 |
| Relative humidity (%) | 79 | 84 | 87 | 89 | 88 | 87 | 85 | 84 | 81 | 77 | 77 | 76 |
| Wind speed (mph) | 11.4 | 10.6 | 9.7 | 8.8 | 8.8 | 10.4 | 10.2 | 9.2 | 9.7 | 11.2 | 11.8 | 12.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 70 | 76 | 75 | 76 | 79 |
| Relative humidity (%) | 79 | 84 | 87 | 89 | 88 | 87 |
| Wind speed (mph) | 11.4 | 10.6 | 9.7 | 8.8 | 8.8 | 10.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 73 | 65 | 49 | 52 | 52 |
| Relative humidity (%) | 85 | 84 | 81 | 77 | 77 | 76 |
| Wind speed (mph) | 10.2 | 9.2 | 9.7 | 11.2 | 11.8 | 12.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Macau Intl, a weather station, about 71 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.