- Find hotel deals & special offers for popular destinations
- Filter hotel deals by price, board basis, star rating & more
- Choose from over 400,000 hotels worldwide
Ha Long Bay weather in May 2021
Get the latest coronavirus (COVID-19) updates for Vietnam with current travel advice, statistics and online resources.
- 3131°C max day temperature
- 1414 days with some rainfall
- 2424°C min night temperature
- 1313 hours of daylight per day
- VHVery High heat & humidity
- 168168 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2727°C sea temperature
The May weather guide for Ha Long Bay, Vietnam 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.
Recommended for Vietnam
How hot is it in Ha Long Bay in May?
Daytime temperatures usually reach 31°C in Ha Long Bay in May with very high heat and humidity, falling to 24°C at night.
How sunny is it in Ha Long Bay in May?
There are normally 6 hours of bright sunshine each day in Ha Long Bay in May - that's 46% of daylight hours.
How warm is the sea around Ha Long Bay in May?
The average sea temperature around Ha Long Bay in May is 27°C.
Does it rain in Ha Long Bay in May?
There are usually 14 days with some rain in Ha Long Bay in May and the average monthly rainfall is 168mm.
Ha Long Bay sunrise & sunset times for May 2021
Browse the sunrise & sunset times for Ha Long Bay in May 2021. Select a month to view Ha Long Bay sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Saturday, 1st May 2021||05:22||18:17|
|Sunday, 16th May 2021||05:14||18:23|
|Monday, 31st May 2021||05:10||18:29|
- Search for cheap car hire prices from top car hire providers
- Filter car hire deals by price, car type, brand & more
- Brands include Avis, Enterprise, Europcar, Hertz, Sixt & Thifty
Metric (°C / mm) | Imperial (°F / inches)
Discover more about Vietnam
Where is hot in Vietnam in May for 2021/2022?
Below are average maximum temperatures at popular destinations in Vietnam in May. Select a destination to see more weather parameters.
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.