S
M
T
W
T
F
S
30
86°
77°
31
88°
78°
1
89°
76°
2
88°
77°
3
89°
76°
4
88°
77°
5
89°
78°
6
88°
78°
7
89°
77°
8
89°
76°
9
89°
76°
10
Hist. Avg.
89°
76°
11
Hist. Avg.
89°
76°
12
Hist. Avg.
89°
76°
13
Hist. Avg.
89°
76°
14
Hist. Avg.
89°
76°
15
Hist. Avg.
89°
76°
16
Hist. Avg.
89°
76°
17
Hist. Avg.
89°
76°
18
Hist. Avg.
89°
76°
19
Hist. Avg.
89°
76°
20
Hist. Avg.
89°
76°
21
Hist. Avg.
88°
76°
22
Hist. Avg.
88°
76°
23
Hist. Avg.
88°
75°
24
Hist. Avg.
88°
75°
25
Hist. Avg.
88°
75°
26
Hist. Avg.
88°
75°
27
Hist. Avg.
88°
75°
28
Hist. Avg.
88°
75°
29
Hist. Avg.
88°
75°
30
Hist. Avg.
88°
75°
1
Hist. Avg.
87°
75°
2
Hist. Avg.
87°
75°
3
Hist. Avg.
87°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sanya
Sanya's September 2026 forecast shows daily high temperatures ranging from 86° to 89°, with overnight lows between 76° and 78°. The average high for September is 88° with an average low of 77°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Sanya. See also: October | November | December.