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Hong Kong, Hong Kong climate
Cwa Monsoon-influenced humid subtropical
Hong Kong has a mildly seasonal tropical climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is July with an average daily high near 91°F, while the coldest is January averaging around 57°F at night. Precipitation totals about 66 inches a year and is strongly seasonal — June alone averages 13.6 inches while February barely receives 1.02 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)Hong Kong climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 67 | 69 | 74 | 80 | 86 | 89 | 91 | 90 | 89 | 85 | 79 | 71 |
| Avg temp (°F) | 62 | 64 | 69 | 75 | 81 | 85 | 86 | 85 | 84 | 80 | 73 | 65 |
| Avg low (°F) | 57 | 59 | 64 | 70 | 76 | 80 | 81 | 80 | 79 | 75 | 68 | 60 |
| Precipitation (in) | 1.2 | 1.0 | 2.4 | 5.1 | 9.1 | 13.6 | 9.6 | 12.2 | 7.8 | 1.9 | 1.1 | 1.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 67 | 69 | 74 | 80 | 86 | 89 |
| Avg temp (°F) | 62 | 64 | 69 | 75 | 81 | 85 |
| Avg low (°F) | 57 | 59 | 64 | 70 | 76 | 80 |
| Precipitation (in) | 1.2 | 1.0 | 2.4 | 5.1 | 9.1 | 13.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 91 | 90 | 89 | 85 | 79 | 71 |
| Avg temp (°F) | 86 | 85 | 84 | 80 | 73 | 65 |
| Avg low (°F) | 81 | 80 | 79 | 75 | 68 | 60 |
| Precipitation (in) | 9.6 | 12.2 | 7.8 | 1.9 | 1.1 | 1.1 |
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 (mph) | 9.0 | 8.8 | 8.5 | 7.8 | 7.5 | 8.3 | 8.2 | 7.2 | 7.5 | 8.3 | 8.7 | 9.5 |
| 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 (mph) | 9.0 | 8.8 | 8.5 | 7.8 | 7.5 | 8.3 |
| 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 (mph) | 8.2 | 7.2 | 7.5 | 8.3 | 8.7 | 9.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Hong Kong Intl, a weather station, about 27 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.