Hong Kong has a humid-subtropical climate dominated by a soaking May–Sep (peaking 450mm in Aug, 89–90% humidity) and typhoon risk Jul–Sep. Winters are cool and dry at 20–22°C with 68–74% humidity — the November–February window is by far the most comfortable for outdoor hiking and harbour days.
Temperature range, rainfall, and humidity by month
| Month | High | Low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 20.3° | 14.1° | 6mm | 60% |
| Feb | 20.4° | 14.8° | 17mm | 73% |
| Mar | 23.2° | 16.9° | 40mm | 78% |
| Apr | 26.8° | 20.9° | 62mm | 82% |
| May | 29.8° | 24.8° | 123mm | 83% |
| Jun | 31.4° | 26.6° | 263mm | 88% |
| Jul | 32.3° | 27.1° | 403mm | 87% |
| Aug | 31.8° | 26.8° | 529mm | 87% |
| Sep | 31.8° | 27° | 433mm | 85% |
| Oct | 29.7° | 25.1° | 46mm | 79% |
| Nov | 24.9° | 19.5° | 3mm | 61% |
| Dec | 23.1° | 17.7° | 3mm | 73% |
Experiences to seek out and peak periods to plan around
Dry, cool 20°C days (Jan avg 20°C high, 39mm rain) suit the Tsim Sha Tsui night parade, Victoria Harbour fireworks, and Che Kung Temple visits.
The driest stretch of the year (Nov 60mm, Dec 9mm) with 21–26°C highs and humidity dropping to 68–74%; ideal for Dragon's Back, Lantau Peak, and Sai Kung country-park trails.
Three days of rugby at Kai Tak Stadium with 24–27°C afternoons; humidity climbs to 85%+ so expect muggy evenings and occasional plum-rain showers.
Victoria Park lantern displays and the Tai Hang fire dragon dance; still warm (29–32°C) but September remains one of the wettest months (352mm avg), so pack rain gear.
Hotels spike 30–60% and many family-run shops and dim sum kitchens shut for 3–5 days; book rooms and restaurants weeks ahead.
Peak rainfall (Aug 450mm, Jun 401mm) and frequent T8+ signals that shut the MTR, ferries, and outdoor attractions for 12–24 hours; build buffer days into itineraries.
Stanley and Sha Tin waterfronts fill for races; ferries and buses run at capacity and humidity sits near 90%, so start early and carry water.
Government portals and tourism boards for Hong Kong, Hong Kong