Ha Long Bay weather in April 2025

Expect 27°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Ha Long Bay in April based on long-term weather averages. There is usually 13 days with some rainfall and 91 mm of average monthly rainfall in April.

  • 27°C maximum daytime temperature in April in Ha Long Bay27
    27°C 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
  • 21°C minimum night-time temperature in April in Ha Long Bay21
    21°C 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
  • 91 mm monthly rainfall in April in Ha Long Bay91
    91 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in April in Ha Long Bay11
    11+ (Extreme) UV index
  • 23°C sea temperature in April in Ha Long Bay23
    23°C 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Ha Long Bay in April?

Daytime temperatures usually reach 27°C in Ha Long Bay in April with moderate heat and humidity, falling to 21°C 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 23°C.

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 91mm.

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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