Cat Ba island in may: average Weather, Temperature and Climate
Weather in Cat Ba island in may 2025
The weather in Cat Ba island in may comes from statistical datas on the past years. You can view the weather statistics the entire month, but also by clicking on 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
Heavy rain
34% of time
22%
18%
11%
Weather at 12pm
85°F
Clear/Sunny
32% of time
25%
25%
12%
Weather at 6pm
81°F
Clear/Sunny
42% of time
25%
21%
7%
Weather at 3am
81°F
27%
24%
19%
13%
Evolution of daily average temperature and precipitation in Cat Ba island in may
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Cat Ba island in may.
The climate of Cat Ba island in may is tolerable
The weather in may in Cat Ba island is wet (with 13.9in of precipitation over 15 days). The situation is deteriorating compared to the previous month since in april there is an average of 5in of precipitation over 7 days.
The climate quite enjoyable there the month of may. Temperatures are up to 85°F. In the morning the temperature drops to 81°F. Thus, the mean temperature average on this month of may in Cat Ba island is 83°F. Note that these seasonal averages are in contrast with those observed in Cat Ba island in may with a maximum record of 94°F in 2010 and a minimum record of 70°F in 2014. You can plan to have about 10 days with temperatures up to 86°F, or 32 of the month.
On average, in Cat Ba island, the days of may last 13:07. The sun rises at 05:15 and sets at 18:22.
With a correct climate, may is okay (but not the best) to go in Cat Ba island in Vietnam.
Cat Ba island: another month?
If you can push the dates of your trip to Cat Ba island forward, the month of june has a better weather forecast than may. more information
May: another location in Vietnam?
If you want to go to Vietnam in may, there are destinations with better weather than Cat Ba island:
In may, Nha Trang, Vinh, Phan Thiet, Bac Ha, Bãi Xép Beach (An Chấn) and Co Thach Beach (Bình Thạnh) have good weather.
Seasonal average climate and temperature of Cat Ba island in may
Check below seasonal norms These datas are set from the weather statements of the last years of may.
| May | |||||
| Outside temperature | |||||
| Average temperature | 83°F | ||||
| Highest temperature | 85°F | ||||
| Lowest temperature | 81°F | ||||
| Highest record temperature | 94°F (2010) | ||||
| Lowest record temperature | 70°F (2014) | ||||
| Number of days at +86°F | 10 day(s) (32%) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 82°F | ||||
| Lowest sea temperature | 76°F | ||||
| Highest sea temperature | 88°F | ||||
| Wind | |||||
| Wind speed | 19km/h | ||||
| Wind temperature | 81°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 13.9in | ||||
| Number of days with rainfall | 15 day(s) (49%) | ||||
| Record daily rainfall | 3.5in (2009) | ||||
| Other climate data | |||||
| Humidity | 86% | ||||
| Visibility | 8.91km | ||||
| Cloud cover | 40% | ||||
| 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 Cat Ba island in may 2024:
77°F to 85°F
76°F to 77°F
76°F to 81°F
77°F to 81°F
77°F to 83°F
77°F to 85°F
77°F to 85°F
77°F to 85°F
76°F to 81°F
76°F to 81°F
77°F to 85°F
79°F to 85°F
77°F to 81°F
77°F to 83°F
77°F to 83°F
77°F to 81°F
76°F to 83°F
77°F to 83°F
77°F to 83°F
77°F to 83°F
77°F to 83°F
77°F to 85°F
79°F to 85°F
77°F to 85°F
79°F to 85°F
79°F to 81°F
83°F to 85°F
83°F to 86°F
79°F to 86°F
81°F to 83°F
77°F to 85°F
Map: other cities in Vietnam in may
Cities near Cat Ba island:
| Halong Bay in may | tolerable weather |
| Do Son Beach (Vạn Hương) in may | tolerable weather |
| Hải Phòng in may | tolerable weather |
| Lạng Sơn in may | good weather |
| Thanh Pho Ninh Binh in may | good weather |
| Hanoi in may | tolerable weather |
| Thanh Pho Thai Nguyen in may | tolerable weather |
| Thanh Hóa in may | good weather |
| Thanh Pho Hoa Binh in may | tolerable weather |
| Viet Tri in may | tolerable weather |
| Tinh Gia in may | good weather |
| Mai Chau in may | tolerable weather |
Click over cities on the map for information about the weather in may.
Cat Ba island
perfect weather
good
tolerable
bad
very bad
Weather data for Cat Ba island in may:
Weather data for Cat Ba island for may are derived from an average of the weather forecast since 2009 in Cat Ba island. There is a margin of error and these forecasts are to be considered as general information only. The weather in Cat Ba island 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 Cat Ba island.