Hong Kong Climate & Monthly Averages
Hong Kong has a humid subtropical climate. July is the hottest month, averaging 84° by day; January is the coldest at 64°.
Sunshine is a defining feature of Hong Kong's climate
Hong Kong is genuinely wet: 88.7 inches (2254 mm) falls in an average year, across 184 days that carry about 12.2 mm each when they come. Temperatures are the calmer variable, running 64°F (18°C) to 84°F (29°C) between January and July.
How sun, temperature and rain fit together
At its warmest, in July, Hong Kong runs to 84°F (29°C) in the afternoon and back to 78°F (26°C) by dawn. January bottoms out at 64°F (18°C) in daylight, 54°F (12°C) after dark. Days and nights are about 4°C apart on average - narrower than almost anywhere else we cover.
August is the wettest month at 15.4 inches (392 mm) over 26 days; December is the driest. Relative humidity averages 82% across the year, more humid than 92% of the 3496 cities in our dataset - enough that summer afternoons feel hotter than the thermometer says, which is what the dew point converter is for. The gridded 2015-2024 daily record for this location tops out at 92°F (33°C) and bottoms at 34°F (1°C) - decade extremes, not all-time station records.
More climate facts for Hong Kong
- Hottest month: July - highs near 84°F (29°C)
- Coldest month: January - highs near 64°F (18°C)
- Decade extremes (2015-2024): 92°F (33°C) high · 34°F (1°C) low
- Wettest month: August (26 rainy days) · Sunniest: July (10.4 h sun/day)
- Climate type: humid subtropical
- Annual swing: 12°C between the average warmest and coolest month · day to night: 4°C
- Average humidity: 82%
The most comfortable sunny-weather window
Best time to visit Hong Kong
November to February is the sweet spot for Hong Kong - warm days, manageable rainfall and plenty of daylight line up. Expect 68°F (20°C) in the afternoon and around 6 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in November.
What to pack
Pack for Hong Kong with light clothing for the warm months, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. Note the gap between afternoon and night: July pairs 84°F (29°C) with 78°F (26°C).
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 64° | 54° | 6 | 1.6 in | 7.8 h/day | 10.9 h | 18% | 75% |
| February | 66° | 56° | 7 | 1.9 in | 7.6 h/day | 11.4 h | 26% | 79% |
| March | 71° | 62° | 13 | 3.5 in | 7.3 h/day | 12.0 h | 41% | 85% |
| April | 75° | 67° | 16 | 6.4 in | 8.3 h/day | 12.6 h | 52% | 86% |
| May | 80° | 73° | 22 | 11.4 in | 8.4 h/day | 13.2 h | 72% | 89% |
| June | 83° | 77° | 27 | 14.6 in | 8.9 h/day | 13.5 h | 90% | 89% |
| July | 84° | 78° | 26 | 11.5 in | 10.4 h/day | 13.4 h | 83% | 87% |
| August | 84° | 77° | 26 | 15.4 in | 8.9 h/day | 12.9 h | 83% | 88% |
| September | 83° | 76° | 21 | 11.0 in | 9.2 h/day | 12.2 h | 71% | 86% |
| October | 79° | 71° | 11 | 7.1 in | 8.9 h/day | 11.6 h | 35% | 77% |
| November | 74° | 65° | 6 | 3.5 in | 8.2 h/day | 11.0 h | 21% | 76% |
| December | 66° | 56° | 4 | 1.1 in | 8.0 h/day | 10.8 h | 12% | 68% |
Hong Kong month by month
Each card shows the average high and low. The bar places that month between Hong Kong's coldest night and warmest afternoon.
January
- Rain
- 6 days
- Sunshine
- 7.8 h
- Daylight
- 10.9 h
February
- Rain
- 7 days
- Sunshine
- 7.6 h
- Daylight
- 11.4 h
March
- Rain
- 13 days
- Sunshine
- 7.3 h
- Daylight
- 12.0 h
April
- Rain
- 16 days
- Sunshine
- 8.3 h
- Daylight
- 12.6 h
May
- Rain
- 22 days
- Sunshine
- 8.4 h
- Daylight
- 13.2 h
June
- Rain
- 27 days
- Sunshine
- 8.9 h
- Daylight
- 13.5 h
July
- Rain
- 26 days
- Sunshine
- 10.4 h
- Daylight
- 13.4 h
August
- Rain
- 26 days
- Sunshine
- 8.9 h
- Daylight
- 12.9 h
September
- Rain
- 21 days
- Sunshine
- 9.2 h
- Daylight
- 12.2 h
October
- Rain
- 11 days
- Sunshine
- 8.9 h
- Daylight
- 11.6 h
November
- Rain
- 6 days
- Sunshine
- 8.2 h
- Daylight
- 11.0 h
December
- Rain
- 4 days
- Sunshine
- 8.0 h
- Daylight
- 10.8 h
Looking for warmer alternatives? Browse warm places by month, or compare Hong Kong's coolest part of the year: January, February, December.
Seasonal weather under Hong Kong's sunnier skies
Spring (March through May)
Spring is mild and warm here - highs near 75°F (24°C), nights near 68°F (20°C), and rain falls on around 51 of the 90 days.
Summer (June through August)
Through summer, Hong Kong brings hot afternoons: 84°F (29°C) by day, 77°F (25°C) after dark, and rain falls on around 79 of the 90 days.
Fall (September through November)
Through fall, Hong Kong brings comfortable warmth: 79°F (26°C) by day, 70°F (21°C) after dark, and rain falls on around 38 of the 90 days.
Winter (December through February)
Through winter, Hong Kong is mild: 65°F (19°C) by day, 55°F (13°C) after dark, and rain comes on about 17 days over the three months.
How unusual is Hong Kong?
- Annual precipitation is 88.7 inches (2254 mm) - wetter than 94% of the 3496 cities we track.
- Rain or snow reaches the ground on 184 days a year - more wet days than 88% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.
Hong Kong temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.