Weather in Halong Bay in may 2025

The weather in Halong Bay in the month of may comes from statistical datas on the past years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.

Average weather throughout may

tolerable weather UV index: 7

Weather at 6am
81°F

Partly Cloudy

22%

Moderate rain at times

18%

Clear/Sunny

13%

Weather at 12pm
86°F

Clear/Sunny

27%

Heavy rain

23%

Partly Cloudy

15%

Weather at 6pm
81°F

Moderate rain at times

26%

Partly Cloudy

25%

Heavy rain

7%

Weather at 3am
77°F

Moderate rain at times

21%

Heavy rain

19%

Fog

18%

Partly Cloudy

16%



Evolution of daily average temperature and precipitation in Halong Bay in may

These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Halong Bay in may.


The climate of Halong Bay in may is tolerable

In may in Halong Bay, the climate is wet (with 12.2in of rainfall over 14 days). It should be noted a worsening from the previous month since in april there is an average of 4.4in of precipitation over 6 days.

The climate comfortable in that area this month. The high seasonal norm is 86°F. In the morning the temperature drops to 81°F. Thus, the mean temperature average in may in Halong Bay is 83°F. Note that these seasonal averages are in contrast with those observed in Halong Bay in may with a maximum record of 97°F in 2019 and a minimum record of 68°F in 2014. You can plan to have about 19 days with temperatures up to 86°F, or 61 of the month.

Day length in Halong Bay in may is 13:07. The sun rises at 05:15 and sunset is at 18:22.

With a correct weather, the month of may is okay (but not the best) to go there in Vietnam.



May: another location in Vietnam?

If you want to go to Vietnam in may, there are destinations with better weather than Halong Bay:

In may, Nha Trang, Vinh, Phan Thiet, Bac Ha, Bãi Xép Beach (An Chấn) and Co Thach Beach (Bình Thạnh) have good weather.

more information about Vietnam's weather in may


Seasonal average climate and temperature of Halong Bay in may

Check below seasonal norms These datas are compiled from the weather statements of the last years of the month of may.

May
Outside temperature
Average temperature 83°F
Highest temperature 86°F
Lowest temperature 81°F
Highest record temperature 97°F
(2019)
Lowest record temperature 68°F
(2014)
Number of days at +86°F 19 day(s)
(61%)
Number of days at +65°F 31 day(s)
(100%)
Sea temperature
Average sea temperature 81°F
Lowest sea temperature 76°F
Highest sea temperature 86°F
Wind
Wind speed 15km/h
Wind temperature 81°F
Precipitation (rainfall)
Rainfall 12.2in
Number of days with rainfall 14 day(s)
(44%)
Record daily rainfall 2.8in
(2018)
Other climate data
Humidity 86%
Visibility 8.64km
Cloud cover 43%
UV index 7
Daily sunshine hours 13
Sunrise and sunset
Time of sunrise 05:15
Time of sunset 18:22
Length of day 13:07
Our opinion about the weather in may
Our opinion at whereandwhen.net tolerable



How was the weather last may?

Here is the day by day recorded weather in Halong Bay in may 2024:

01-05-2024
Partly Cloudy
77°F to 85°F
02-05-2024
Light rain shower
76°F to 77°F
03-05-2024
Light rain shower
76°F to 81°F
04-05-2024
Light rain shower
77°F to 81°F
05-05-2024
Patchy rain nearby
77°F to 83°F
06-05-2024
Patchy rain nearby
77°F to 85°F
07-05-2024
Patchy rain nearby
77°F to 85°F
08-05-2024
Clear/Sunny
77°F to 85°F
09-05-2024
Patchy rain nearby
76°F to 81°F
10-05-2024
Light rain shower
76°F to 81°F
11-05-2024
Patchy rain nearby
77°F to 85°F
12-05-2024
Light rain shower
79°F to 85°F
13-05-2024
Light rain shower
77°F to 81°F
14-05-2024
Patchy rain nearby
77°F to 83°F
15-05-2024
Light rain shower
77°F to 83°F
16-05-2024
Patchy rain nearby
77°F to 81°F
17-05-2024
Partly Cloudy
76°F to 83°F
18-05-2024
Light rain shower
77°F to 83°F
19-05-2024
Light rain shower
77°F to 83°F
20-05-2024
Light rain shower
77°F to 83°F
21-05-2024
Light rain shower
77°F to 83°F
22-05-2024
Patchy rain nearby
77°F to 85°F
23-05-2024
Light rain shower
79°F to 85°F
24-05-2024
Patchy rain nearby
77°F to 85°F
25-05-2024
Patchy rain nearby
79°F to 85°F
26-05-2024
Light rain shower
79°F to 81°F
27-05-2024
Thundery outbreaks in nearby
83°F to 85°F
28-05-2024
Light rain shower
83°F to 86°F
29-05-2024
Patchy rain nearby
79°F to 86°F
30-05-2024
Light rain shower
81°F to 83°F
31-05-2024
Light rain shower
77°F to 85°F

Map: other cities in Vietnam in may

Cities near Halong Bay:

Cat Ba island in maytolerable weather
Hải Phòng in maytolerable weather
Do Son Beach (Vạn Hương) in maytolerable weather
Lạng Sơn in maygood weather
Hanoi in maytolerable weather
Thanh Pho Ninh Binh in maygood weather
Thanh Pho Thai Nguyen in maytolerable weather
Viet Tri in maytolerable weather
Thanh Pho Hoa Binh in maytolerable weather
Thanh Hóa in maygood weather
Thanh Pho Cao Bang in maytolerable weather
Mai Chau in maytolerable weather
Vietnam in may: See full list of cities

Click over cities on the map for information about the weather in may.

Legend: Halong Bay perfect weather good tolerable bad very bad


Weather data for Halong Bay in may:

Weather data for Halong Bay for may are derived from an average of the weather forecast since 2009 in Halong Bay. There is a margin of error and these forecasts are to be considered as general information only. The weather in Halong Bay can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Halong Bay.


Weather in april in Halong Bay
Weather in june in Halong Bay
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