Hong Kong weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Fair
Best time to visit: October – February
What is the weather like in Hong Kong in August?
In August, Hong Kong is hot: daytime highs average 30 °C, and even at night it stays warm at around 26 °C. The sea averages 28.9 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It rains often – on about 24 days, adding up to 314 mm. On about 14 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Hong Kong.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 46 | 44 | 50 |
| Day | 30° | 30° | 29° |
| Night | 26° | 26° | 25° |
| Sea | 29° | 29° | 28° |
| Sun | 7 h | 6 h | 7 h |
| Rain days | 22 | 24 | 17 |
More details for August
- Daylight
- 12 h 55 min06:00 – 18:56
- UV index
- 12 · extremeclear sky, noon (estimate)
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 15 km/haverage daily peak
- Cloud cover
- 74 %on average
- Hot days
- 14 days30 °C or more
- Time zone
- UTC+8Asia/Hong_Kong
How the score comes together
- Temperatureweight 50 %65 %
- Sunshineweight 20 %57 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Hong Kong in August: quick answers
Is Hong Kong hot in August?
Yes. In August, Hong Kong is hot: daytime highs average 30 °C and nights stay around 26 °C. On about 14 days the thermometer climbs to 30 °C or more.
Can you swim in Hong Kong in August?
Yes. In August the sea averages 28.9 °C – lovely and warm for swimming.
Does it rain much in Hong Kong in August?
It rains often – on about 24 days, adding up to 314 mm.
Hong Kong month by month
The whole year in Hong KongAll destinations: Hong Kong
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)