S
M
T
W
T
F
S
26
85°
72°
27
86°
70°
28
84°
70°
29
85°
71°
30
79°
68°
1
80°
68°
2
85°
69°
3
85°
68°
4
84°
69°
5
85°
70°
6
85°
73°
7
86°
73°
8
86°
74°
9
85°
73°
10
86°
74°
11
87°
74°
12
86°
73°
13
85°
73°
14
86°
74°
15
87°
75°
16
86°
74°
17
84°
75°
18
86°
75°
19
86°
74°
20
84°
72°
21
82°
71°
22
83°
73°
23
85°
74°
24
84°
76°
25
86°
76°
26
86°
75°
27
85°
76°
28
84°
76°
29
86°
74°
30
87°
75°
31
87°
76°
1
86°
75°
2
88°
76°
3
89°
77°
4
88°
74°
5
87°
73°
6
86°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Guangzhou
Guangzhou's May 2026 forecast shows daily high temperatures ranging from 79° to 89°, with overnight lows between 68° and 77°. The average high for May is 85° with an average low of 73°. 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 Guangzhou. See also: June | July | August.