Hong Kong Climate — Average Highs, Lows & Rainfall by Month
Hong Kong has a temperate climate with four distinct seasons. Daytime temperatures average 30°C / 86°F in July, the warmest month, and drop to 19°C / 66°F in January, the coldest. Overnight lows in January average 13°C / 55°F. Hong Kong receives about 2309 mm of rain a year across roughly 189 wet days, with August the wettest month.
Averages for 2021–2025 · Open-Meteo Historical Weather API (ERA5 reanalysis) · Updated 2026-10-05
Monthly averages in Hong Kong
Average daytime high, overnight low and rainfall for each month of the year.
| Month | Avg high | Avg low | Rainfall | Wet days |
|---|---|---|---|---|
| January | 19°C / 66°F | 13°C / 55°F | 15 mm | 4 |
| February | 20°C / 68°F | 14°C / 57°F | 58 mm | 8 |
| March | 22°C / 72°F | 17°C / 63°F | 85 mm | 12 |
| April | 25°C / 77°F | 20°C / 69°F | 183 mm | 17 |
| May | 27°C / 81°F | 23°C / 74°F | 286 mm | 23 |
| June | 29°C / 84°F | 25°C / 78°F | 354 mm | 28 |
| July | 30°C / 86°F | 26°C / 79°F | 331 mm | 25 |
| August | 30°C / 85°F | 26°C / 78°F | 358 mm | 27 |
| September | 30°C / 85°F | 25°C / 77°F | 294 mm | 22 |
| October | 27°C / 81°F | 22°C / 72°F | 196 mm | 11 |
| November | 24°C / 76°F | 19°C / 65°F | 127 mm | 8 |
| December | 20°C / 68°F | 13°C / 56°F | 22 mm | 4 |
Best time to visit Hong Kong
January, December, February offer the most comfortable weather in Hong Kong: mild daytime temperatures with the year's lowest rainfall — January averages 19°C (66°F); December averages 20°C (68°F); February averages 20°C (68°F).
Hong Kong climate FAQ
- What is the hottest month in Hong Kong?
- July is the hottest month in Hong Kong, with average daytime highs of 30°C / 86°F and overnight lows of 26°C / 79°F (averages for 2021–2025).
- What is the coldest month in Hong Kong?
- January is the coldest month in Hong Kong, with average highs of 19°C / 66°F and lows of 13°C / 55°F.
- How much rain does Hong Kong get a year?
- Hong Kong receives about 2309 mm of rainfall a year, spread over roughly 189 wet days. August is the wettest month (358 mm on average) and January the driest (15 mm).
- When is the best time to visit Hong Kong?
- January, December, February are the most comfortable months in Hong Kong: mild daytime temperatures with the least rainfall of the year.
Want today's conditions instead of averages?
See live weather in Hong Kong →Source: Open-Meteo Historical Weather API (ERA5 reanalysis), Open-Meteo. Averages are daily means across 2021–2025 and are rounded for display — for a live forecast see the Hong Kong weather page.