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