Climate in Hong Kong — Annual Weather Overview
Hong Kong has a subtropical climate — hot summers, mild winters, rainfall spread throughout the year. The hottest month is July (average high 30.4°C) and the coolest is January (19.2°C). There is a noticeable seasonal temperature shift of 11.2°C between July and January. Annual rainfall totals around 2222mm. August is the wettest month at 380.3mm, while January averages just 17.2mm. Average daily sunshine is 8.6 hours.
**Spring (March, April, May):** average highs 25.0°C, 447mm rain. **Summer (June, July, August):** average highs 29.7°C, 1000mm rain. **Autumn (September, October, November):** average highs 27.2°C, 661mm rain. **Winter (December, January, February):** average highs 19.7°C, 114mm rain.
Hong Kong — Monthly Temperatures
Hong Kong — Monthly Rainfall
✅ Best months to visit
All year
ℹ️ No months to avoid
Weather in Hong Kong stays reasonable all year.
Hong Kong weather by month
| Month | High | Low | Rain | Sun/day | Rainy days | Rating |
|---|---|---|---|---|---|---|
| January | 19.2°C | 13.5°C | 17.2mm | 8.5h | 4 | 10/10 |
| February | 19.9°C | 14.4°C | 68.8mm | 8.0h | 7 | 10/10 |
| March | 23.0°C | 18.5°C | 84.5mm | 7.9h | 14 | 10/10 |
| April | 24.5°C | 20.2°C | 88.5mm | 8.3h | 15 | 10/10 |
| May | 27.5°C | 24.2°C | 273.6mm | 8.7h | 23 | 8/10 |
| June | 29.1°C | 26.2°C | 352.1mm | 8.7h | 29 | 8/10 |
| July | 30.4°C | 26.9°C | 267.5mm | 10.7h | 25 | 8/10 |
| August | 29.7°C | 26.1°C | 380.3mm | 9.0h | 28 | 8/10 |
| September | 29.7°C | 25.7°C | 319.0mm | 9.0h | 22 | 8/10 |
| October | 27.1°C | 22.3°C | 260.0mm | 8.4h | 11 | 8/10 |
| November | 24.8°C | 19.4°C | 82.1mm | 8.3h | 6 | 10/10 |
| December | 20.1°C | 13.4°C | 28.3mm | 7.9h | 4 | 10/10 |
For the full verdict on when to go, see the best time to visit Hong Kong and the Hong Kong rainy season guide. Seasonal breakdowns: spring, summer, autumn and winter.
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Frequently Asked Questions
What type of climate does Hong Kong have?
Hong Kong has a subtropical climate — hot summers, mild winters, rainfall spread throughout the year. Average highs range from 19.2°C in January to 30.4°C in July.
What is the hottest month in Hong Kong?
July is the hottest month in Hong Kong, with average highs of 30.4°C and lows of 26.9°C.
What is the coldest month in Hong Kong?
January is the coolest month, with average highs of 19.2°C and lows of 13.4°C.
What is the wettest month in Hong Kong?
August is the wettest month, averaging 380.3mm of rainfall over around 28 rainy days.
When is rainy season in Hong Kong?
Rainy season in Hong Kong runs May to October, when rainfall is significantly higher than the rest of the year. Full rainy season guide →
How much rain does Hong Kong get per year?
Hong Kong receives around 2222mm of rain per year. The driest month is January (17.2mm).
When is the best time to visit Hong Kong?
The best time to visit Hong Kong is All year. See the full month-by-month guide →
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.