Ha Long Bay weather in September 2024

Expect 88°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Ha Long Bay in September. Check more long-term weather averages for Ha Long Bay in September before you book your next holiday to Vietnam in 2024/2025.

88
88°F max day temperature
6
6 hours of sunshine per day
14
14 days with some rainfall
75
75°F min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
8.1
8.1 inches of monthly rainfall
11
11 (Extreme) UV index
84
84°F sea temperature

More about Ha Long Bay

Ha Long Bay by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Vietnam

Avalon Waterways: River cruises + flights from £1,799

Sale

Book 2024 river cruses from £1,799 per person
Save extra £50 per person with exclusive discount
Travel before 25th November 2024 (inclusive)

Go to Avalon Waterways deal >>

Expires at 23:59 on Tuesday 30th Apr 2024 · View all Avalon Waterways offers

River cruise deals

The September 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)

More about Vietnam

How hot is it in Ha Long Bay in September?

Daytime temperatures usually reach 88°F in Ha Long Bay in September with very high heat and humidity, falling to 75°F at night.

How sunny is it in Ha Long Bay in September?

There are normally 6 hours of bright sunshine each day in Ha Long Bay in September - that's 51% of daylight hours.

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

The average sea temperature around Ha Long Bay in September is 84°F.

Does it rain in Ha Long Bay in September?

There are usually 14 days with some rain in Ha Long Bay in September and the average monthly rainfall is 8.1 inches.

What is the chance of a typhoon in Ha Long Bay in September?

On average 2.4 days in September in Ha Long Bay are likely to be affected by the passage of one or more tropical storms.

Ha Long Bay September sunrise & sunset times

Browse the sunrise and sunset times for Ha Long Bay in September 2024. Select a month to view Ha Long Bay sunrise and sunset times for the next 12 months.