S
M
T
W
T
F
S
26
86°
72°
27
81°
72°
28
81°
71°
29
76°
69°
30
76°
72°
1
79°
74°
2
83°
76°
3
86°
75°
4
83°
75°
5
82°
74°
6
83°
76°
7
90°
80°
8
90°
82°
9
91°
81°
10
84°
76°
11
81°
78°
12
86°
78°
13
86°
79°
14
87°
79°
15
87°
78°
16
86°
78°
17
87°
77°
18
87°
79°
19
86°
79°
20
87°
78°
21
84°
79°
22
87°
78°
23
87°
79°
24
88°
80°
25
89°
80°
26
88°
79°
27
88°
80°
28
89°
80°
29
87°
79°
30
88°
80°
31
88°
79°
1
87°
79°
2
87°
80°
3
88°
80°
4
86°
79°
5
87°
80°
6
86°
80°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ha Long
Ha Long's May 2026 forecast shows daily high temperatures ranging from 76° to 91°, with overnight lows between 69° and 82°. The average high for May is 86° with an average low of 78°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Ha Long. See also: June | July | August.
