Weather in Hong Kong in August 2025
Average weather
Average temperature in Hong Kong in August
Going from a maximum of +91°F during the day to a minimum of +75°F during the night, the temperature in August averages around +88°F.
The average maximum temperature goes down 22% by the end of the month, compared with the beginning of the month, from +88°F to +84°F.
Is Hong Kong warm or cold in August?
Hong Kong is typically warm in August.
Maximum temperatures go down compared to the previous month from +86°F to +84°F. The minimum temperature also goes up from +77°F to +77°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is one of the warmest months in Hong Kong, here is the comparison with other months:
Water temperature in Hong Kong in August
Water in Hong Kong in August is Very warm. It varies from +81°F to +85°F, with an average of +83°F. This is almost similar to the air temperature, which averages +84°F.
The water temperature in August is one of the warmest of the entire year:
Can you swim in Hong Kong in August?
Climate in Hong Kong in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +86°F | +84°F | +84°F | ||||
| Min. temperature | ||||||
| +68°F | +70°F | +64°F | ||||
| Max. temperature | ||||||
| +95°F | +95°F | +93°F | ||||
| Rainfall | ||||||
| 250 mm | 325 mm | 231 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +84°F | +83°F | +83°F | ||||
| Humidity | ||||||
| 81% | 82% | 78% | ||||
| Air pressure | ||||||
| 1004 HPa | 1004 HPa | 1008 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 2 | ||||
| Cloudy days | ||||||
| 2 | 1 | 4 | ||||
| Rainy days | ||||||
| 26 | 26 | 22 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. It’s getting colder in August. From +86°F in the day, the average maximum temperature lowers to +84°F. Prepare for more rain. Average rainfall goes from 250 mm to 325 mm. Humidity rises from 81% to 82%. Winds are calmer in comparison to July, going down from 3 m/s to 2 m/s on average. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Hong Kong is gradually increasing during August, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last August in Hong Kong?
Climate Change Over the Years
The climate in Hong Kong in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1983 (+73°F) and the highest in 2023 (+78°F). The driest year was 2011 with only 1147 mm of rainfall, and the wettest year was 2023 with 3151 mm.
FAQ
Is August a good time to visit Hong Kong?
Can you sunbathe in Hong Kong in August?
Can you swim in Hong Kong in August?
Is Hong Kong rainy in August?
Is it sunny in Hong Kong in August?
Monthly weather in Hong Kong
Source of the data
For this page, we’ve looked at the typical weather in Hong Kong, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.