SeasonScore
Ha Long Bay, Vietnam
Photo: Francesco Paroni Sterbini · CC BY 3.0

Vietnam

Ha Long Bay in August

🌧️ Rainy season

Warm, humid and very wet. Watch for tropical cyclone & flood risk.

🎒 Pack: light, breathable clothes & sunscreen · compact umbrella or rain jacket · quick-dry fabrics · waterproof sandals

Best months: Nov (9.0), Feb (8.9), Dec (8.8)

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Why August scores 6.0What goes into the score

How it works
🌡️ 31° / 27°C🌧️ 430 mm💧 dew pt 26°🍃 PM2.5 23
  • Weather comfort4.8
    • ✓Warm (30.5°C highs / 26.5°C lows)
    • !Very humid/sticky (dew point 25.8°C)
    • !Wet: ~430 mm rain, ~12 heavy-rain days
  • Air quality7.3
    • ✓Moderate (PM2.5 ~23 µg/m³)
  • Seasonal hazards7.0
    • !Tropical cyclone: Peak of the Western Pacific typhoon season
    • !Flood: ~12 heavy-rain days (≥10 mm) in an average August
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut August side by side with another month
AugNov
Score6.0 Fair9.0 Excellent
Season🌧️ Rainy season☀️ Dry season
High / low31° / 27°25° / 19°
Rain430 mm44 mm
Humiditydew pt 26°dew pt 18°
PM2.523 µg/m³18 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast).

Holidays & crowdsAugust 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in Vietnam this month.

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore Ha Long BayEvents, sights, food & souvenirs

Check event dates locally

A UNESCO-listed bay in northern Vietnam with thousands of limestone islands, best explored on an overnight boat cruise.

Events in August

No major events on our calendar for August.

Coming up later

National DayEvery year2 September every year

A national holiday marking Vietnam's declaration of independence.

Why go: Domestic travel is busy around the long weekend.

Where: Across Vietnam

Tết (Lunar New Year)Date variesLunar calendar — late Jan to mid-Feb, date moves each year

Vietnam's biggest holiday, when families gather and streets are decorated with flowers and red banners.

Why go: Many shops and restaurants close for several days and domestic travel is very busy, so book transport early.

Where: Ha Long and across Vietnam