Hong Kong · Hong Kong · 1995–2024 averages
Hong Kong weather, month by month. December is the pick.
Thirty years of averages for Hong Kong, Hong Kong — how hot it really feels, when the rain arrives, and what the air is like. December comes out on top; August is the one to skip.
The year at a glance
Tap a month for its full breakdown.
December
bestscore 74.8/100Cool, sticky and dryish, with poor air.
- Feels like
- 19°
- cool
- Real temp
- 20°
- cool
- Humidity
- 68%
- sticky
- Rain
- 26mm
- dryish
- Cloud cover
- 47%
- bright
- Air quality
- 104
- poor
- Daylight
- 10.8h
- shortish
Month by month, metric by metric
Each row is one measure across the same twelve months. The tint says how good that month is for it, the word says why.
- Good
- Okay
- Rough
- Grim
Feels like
peaks at 36° in July
- Jan18°cool
- Feb20°cool
- Mar24°mild
- Apr28°warm
- May32°warm
- Jun35°hot
- Jul36°hot
- Aug36°hot
- Sep34°hot
- Oct30°warm
- Nov25°mild
- Dec19°cool
Real temp
19–30° in the shade across the year
- Jan19°cool
- Feb20°cool
- Mar22°mild
- Apr25°mild
- May28°warm
- Jun29°warm
- Jul30°warm
- Aug30°warm
- Sep29°warm
- Oct27°mild
- Nov24°mild
- Dec20°cool
Humidity
68% at its driest, 88% at its most oppressive
- Jan72%sticky
- Feb78%sweaty
- Mar82%sweaty
- Apr85%soupy
- May87%soupy
- Jun88%soupy
- Jul86%soupy
- Aug87%soupy
- Sep83%sweaty
- Oct76%sweaty
- Nov73%sticky
- Dec68%sticky
Rain
339mm in August, 24mm in January
- Jan24mmdry
- Feb37mmdryish
- Mar73mmdryish
- Apr135mmrainy
- May247mmsoaking
- Jun330mmsoaking
- Jul256mmsoaking
- Aug339mmsoaking
- Sep224mmsoaking
- Oct99mmsome rain
- Nov52mmdryish
- Dec26mmdryish
Cloud cover
47% at its clearest, 84% at its greyest
- Jan53%bright
- Feb66%mixed
- Mar70%grey
- Apr72%grey
- May77%grey
- Jun84%grey
- Jul73%grey
- Aug74%grey
- Sep61%mixed
- Oct48%bright
- Nov47%bright
- Dec47%bright
Air quality
worst in January, cleanest in July
- Jan105poor
- Feb99moderate
- Mar99moderate
- Apr89moderate
- May87moderate
- Jun72moderate
- Jul65moderate
- Aug82moderate
- Sep97moderate
- Oct88moderate
- Nov95moderate
- Dec104poor
Daylight
10.8h to 13.5h of daylight across the year
- Jan10.9hshortish
- Feb11.4hshortish
- Mar12heven
- Apr12.7heven
- May13.2heven
- Jun13.5heven
- Jul13.3heven
- Aug12.9heven
- Sep12.3heven
- Oct11.6hshortish
- Nov11.1hshortish
- Dec10.8hshortish
Hong Kong's air changes sharply through the year
The air is at its worst in January at 105 AQI (poor), and at its cleanest in July at 65 (moderate). The dirtiest months here are also the driest.
Every month in full
All twelve months, all seven measures.
| Month | Feels like | Real temp | Humidity | Rain | Cloud cover | Air quality | Daylight |
|---|---|---|---|---|---|---|---|
| January | 18° cool | 19° cool | 72% sticky | 24mm dry | 53% bright | 105 poor | 10.9h shortish |
| February | 20° cool | 20° cool | 78% sweaty | 37mm dryish | 66% mixed | 99 moderate | 11.4h shortish |
| March | 24° mild | 22° mild | 82% sweaty | 73mm dryish | 70% grey | 99 moderate | 12h even |
| April | 28° warm | 25° mild | 85% soupy | 135mm rainy | 72% grey | 89 moderate | 12.7h even |
| May | 32° warm | 28° warm | 87% soupy | 247mm soaking | 77% grey | 87 moderate | 13.2h even |
| June | 35° hot | 29° warm | 88% soupy | 330mm soaking | 84% grey | 72 moderate | 13.5h even |
| July | 36° hot | 30° warm | 86% soupy | 256mm soaking | 73% grey | 65 moderate | 13.3h even |
| August | 36° hot | 30° warm | 87% soupy | 339mm soaking | 74% grey | 82 moderate | 12.9h even |
| September | 34° hot | 29° warm | 83% sweaty | 224mm soaking | 61% mixed | 97 moderate | 12.3h even |
| October | 30° warm | 27° mild | 76% sweaty | 99mm some rain | 48% bright | 88 moderate | 11.6h shortish |
| November | 25° mild | 24° mild | 73% sticky | 52mm dryish | 47% bright | 95 moderate | 11.1h shortish |
| December | 19° cool | 20° cool | 68% sticky | 26mm dryish | 47% bright | 104 poor | 10.8h shortish |
Hong Kong weather questions
- What is the best time to visit Hong Kong?
- December scores best across temperature, rain, humidity and air quality — 19° feels-like, 26mm of rain and 68% humidity. August is the month to avoid: 339mm of rain and 82 AQI.
- How hot does Hong Kong get?
- July is the peak, at 36° feels-like (30° in the shade) — hot. Even in December it reaches 19°.
- When is the rainy season in Hong Kong?
- August is the wettest month at 339mm, and January the driest at just 24mm.
- Is air quality a problem in Hong Kong?
- January is the worst month at 105 AQI (poor), and July the best at 65 (moderate).
Weather normals from Open-Meteo (ERA5 reanalysis, 1995–2024) and CAMS air quality (2015–2024), licensed CC-BY-4.0. Contains modified Copernicus Climate Change Service information. These are long-run averages, not forecasts — any given year will differ.
Going in December? You won't be the only one.
Suppertime shows you a live map of what other travelers in Hong Kong are doing tonight. Tap a plan, show up, meet people.
Scan with your phone