Ha Long Bay weather in April 2025

Expect 81°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Ha Long Bay in April. Check more long-term weather averages for Ha Long Bay in April before you book your next holiday to Vietnam in 2025/2026.

  • 81°F maximum daytime temperature in April in Ha Long Bay81
    81°F max day temperature
  • 4 hours of sunshine per day
  • 13 days with some rainfall in April in Ha Long Bay13
    13 days with some rainfall
  • 70°F minimum night-time temperature in April in Ha Long Bay70
    70°F min night temperature
  • 13 hours of daylight per day in April in Ha Long Bay13
    13 hours of daylight per day
  • Moderate heat & humidity in April in Ha Long BayM
    Moderate heat & humidity
  • 3.6 inches monthly rainfall in April in Ha Long Bay3.6
    3.6 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in April in Ha Long Bay11
    11+ (Extreme) UV index
  • 73°F sea temperature in April in Ha Long Bay73
    73°F sea temperature

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The April weather guide for Vietnam (Ha Long Bay) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Ha Long Bay in April?

Daytime temperatures usually reach 81°F in Ha Long Bay in April with moderate heat and humidity, falling to 70°F at night.

How sunny is it in Ha Long Bay in April?

There are normally 4 hours of bright sunshine each day in Ha Long Bay in April - that's 32% of daylight hours.

How warm is the sea around Ha Long Bay in April?

The average sea temperature around Ha Long Bay in April is 73°F.

Does it rain in Ha Long Bay in April?

There are usually 13 days with some rain in Ha Long Bay in April and the average monthly rainfall is 3.6 inches.

Ha Long Bay April sunrise & sunset times

Browse the sunrise and sunset times for Ha Long Bay in April 2025. Select a month to view Ha Long Bay sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st April 2025 05:45 18:06
Tuesday, 15th April 2025 05:33 18:11
Wednesday, 30th April 2025 05:22 18:16

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