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Yuen Long, Hong Kong climate
Cwa Monsoon-influenced humid subtropical
Yuen Long 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 2039 mm a year and is strongly seasonal — June alone averages 391 mm while November barely receives 35 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)Yuen Long climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 21 | 23 | 27 | 30 | 31 | 32 | 32 | 32 | 30 | 26 | 22 |
| Avg temp (°C) | 16 | 17 | 20 | 24 | 27 | 29 | 29 | 29 | 28 | 26 | 22 | 18 |
| Avg low (°C) | 12 | 14 | 16 | 20 | 24 | 26 | 26 | 26 | 25 | 22 | 18 | 14 |
| Precipitation (mm) | 37 | 39 | 71 | 148 | 252 | 391 | 330 | 369 | 247 | 84 | 35 | 37 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 21 | 23 | 27 | 30 | 31 |
| Avg temp (°C) | 16 | 17 | 20 | 24 | 27 | 29 |
| Avg low (°C) | 12 | 14 | 16 | 20 | 24 | 26 |
| Precipitation (mm) | 37 | 39 | 71 | 148 | 252 | 391 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 30 | 26 | 22 |
| Avg temp (°C) | 29 | 29 | 28 | 26 | 22 | 18 |
| Avg low (°C) | 26 | 26 | 25 | 22 | 18 | 14 |
| Precipitation (mm) | 330 | 369 | 247 | 84 | 35 | 37 |
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 (%) | 75 | 78 | 81 | 84 | 85 | 87 | 86 | 85 | 82 | 76 | 74 | 72 |
| Wind speed (km/h) | 14.5 | 14.2 | 13.6 | 12.6 | 12.1 | 13.4 | 13.1 | 11.6 | 12.1 | 13.4 | 14.0 | 15.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 70 | 76 | 75 | 76 | 79 |
| Relative humidity (%) | 75 | 78 | 81 | 84 | 85 | 87 |
| Wind speed (km/h) | 14.5 | 14.2 | 13.6 | 12.6 | 12.1 | 13.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 73 | 65 | 49 | 52 | 52 |
| Relative humidity (%) | 86 | 85 | 82 | 76 | 74 | 72 |
| Wind speed (km/h) | 13.1 | 11.6 | 12.1 | 13.4 | 14.0 | 15.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Baoan Intl, a weather station, about 31 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.