Hong Kong in August

In August, Hong Kong averages 31°C (88°F) during the day and 26°C (79°F) at night, with frequent rain — about 17 days of the month see precipitation (450 mm total).

Shoulder

Conditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.

It's peak typhoon season in Hong Kong during August. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.

31°C
Avg high
26°C
Avg low
17
Rain days
450 mm
Rainfall

How August compares to the rest of the year in Hong Kong

2nd
warmest month of the 12
3rd
wettest month of the 12
19%
of yearly rainfall falls in August
12 h 55 min
daylight on the 15th

August is one of the warmest months in Hong Kong (2nd of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 6°C above the annual average (25°C). August runs roughly the same as July (31°C) and cools 1°C in September (30°C).

August sunrise & sunset in Hong Kong

🌅
Sunrise (15th)
6:00 AM
🌇
Sunset (15th)
6:55 PM
Day length
12 h 55 min

Times shown for Hong Kong local time (Asia/Hong_Kong), calculated for the 15th of August. They shift by a few minutes day to day across the month.

Photography light in Hong Kong — August

Golden-hour and blue-hour windows for the 15th of August, in Hong Kong's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
5:00 AM – 5:40 AM
🌄 Golden hour (AM)
5:40 AM – 6:40 AM
🌇 Golden hour (PM)
6:15 PM – 7:15 PM
🌆 Blue hour (PM)
7:15 PM – 7:55 PM
Milky Way galactic core
Poor
Core barely rises (or hasn't yet returned for the season). Consider a different month.

📅 When to book — Hong Kong in August

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (Shoulder) and Hong Kong's popularity.

✈ Flights — lead time
6-10 weeks
Sweet spot for value. Major fare-sales (US: Black Friday, EU: post-Easter) hit hardest in shoulder months for shoulder travel. ⚠ Peak hazard season — book flexible-change tickets and travel insurance with weather-disruption coverage.
🏨 Lodging — lead time
4-8 weeks
Lots of selection. Look for shoulder-season packages — many hotels add value (free breakfast, spa credit) to fill rooms.

Crowds & pricing — August in Hong Kong

Shoulder

Hong Kong is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.

Why this tier: Northern Hemisphere summer holidays peak hazard season (1 active)

Sun & mosquito risk — August in Hong Kong

☀️ UV Index (noon, 15th)
12.8
Extreme
Stay indoors during midday hours; SPF 50+ even briefly outside, UPF clothing, wide-brim hat, sunglasses essential.
🦟 Mosquito risk
●●●●●
Severe
Severe mosquito season with active disease transmission risk. DEET 30%+, picaridin 20%, long sleeves day and night, treated nets, and check CDC/WHO travel advisories before going.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Sea temperature in Hong Kong — August

28.5°C (83°F)
bath-warm
tropical and comfortable for hours

Across the year Hong Kong's sea swings from 18.6°C (January) to 29.3°C (July) — August sits at 28.5°C.

Hong Kong in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 18°C / 64°F 14°C / 57°F 25 mm 5
February 19°C / 66°F 15°C / 59°F 55 mm 9
March 21°C / 70°F 17°C / 63°F 85 mm 11
April 25°C / 77°F 20°C / 68°F 165 mm 12
May 28°C / 82°F 23°C / 73°F 295 mm 15
June 30°C / 86°F 26°C / 79°F 395 mm 19
July 31°C / 88°F 26°C / 79°F 375 mm 17
August 31°C / 88°F 26°C / 79°F 450 mm 17
September 30°C / 86°F 25°C / 77°F 325 mm 14
October 28°C / 82°F 22°C / 72°F 100 mm 7
November 24°C / 75°F 18°C / 64°F 40 mm 5
December 20°C / 68°F 15°C / 59°F 25 mm 4

Other cities with similar August weather

🌍 See the full ranked list of climate twins for Hong Kong in August →

Frequently asked questions

How hot is Hong Kong in August?

In August, Hong Kong averages a high of 31°C (88°F) and a low of 26°C (79°F) — generally hot.

Does it rain a lot in Hong Kong in August?

August is quite rainy in Hong Kong, with about 17 rainy days on average.

Is August a good time to visit Hong Kong?

August is hot but on the rainy side. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Hong Kong in August?

Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full August packing list for Hong Kong for a complete, climate-based checklist.

Open Hong Kong on the interactive map

Check the live 10-day forecast and sunrise/sunset.