Hong Kong Climate & Monthly Averages
The climate of Hong Kong
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.
Climate quick facts
- 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%
Temperatures through the year
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.
Rain, sun and snow
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.
How Hong Kong compares
- 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.
Ranked against every city in our dataset, each measured on the same ten-year window.
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
Average high and low for each month, with the bar showing where it sits in Hong Kong's year (left is the coldest night, right is the 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
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Hong Kong
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.
Climate questions, answered
How much sun does Hong Kong get?
Is Hong Kong hot in summer?
How often does it rain in Hong Kong?
Are nights cold in Hong Kong?
How cold does Hong Kong get in winter?
How warm is Hong Kong on average?
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.
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).
Hong Kong temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.