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

Vietnam

Ha Long Bay in April

🌦️ Shoulder (showers)

Pleasant, humid and some showers. Watch for hazy air.

🎒 Pack: quick-dry fabrics · N95 mask for hazy days · sunglasses & hat

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

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Why April scores 7.8What goes into the score

How it works
🌡️ 28° / 21°C🌧️ 83 mm💧 dew pt 21°🍃 PM2.5 44
  • Weather comfort8.3
    • ✓Comfortable temperatures (27.8°C highs / 21.2°C lows)
    • !Very humid/sticky (dew point 21.1°C)
    • ✓Mostly dry (~83 mm rain)
  • Air quality4.7
    • !Unhealthy for sensitive groups (PM2.5 ~44 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut April side by side with another month
AprNov
Score7.8 Very good9.0 Excellent
Season🌦️ Shoulder (showers)☀️ Dry season
High / low28° / 21°25° / 19°
Rain83 mm44 mm
Humiditydew pt 21°dew pt 18°
PM2.544 µg/m³18 µg/m³

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

Holidays & crowdsApril 2027

Long weekend

There's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.

  • Hung Kings' Commemoration Day 16–18 Apr · 3 days off in a row
  • International Labor Day 30 Apr – 3 May · 4 days off in a row

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 April

No major events on our calendar for April.

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