S
M
T
W
T
F
S
26
100°
84°
27
102°
81°
28
100°
78°
29
99°
81°
30
98°
78°
31
100°
82°
1
100°
81°
2
99°
78°
3
98°
79°
4
97°
77°
5
97°
76°
6
96°
80°
7
94°
81°
8
96°
78°
9
96°
76°
10
99°
78°
11
97°
76°
12
97°
80°
13
96°
82°
14
100°
82°
15
97°
82°
16
99°
82°
17
100°
83°
18
99°
82°
19
98°
81°
20
100°
79°
21
99°
80°
22
100°
78°
23
93°
79°
24
93°
80°
25
94°
80°
26
97°
81°
27
95°
82°
28
96°
81°
29
97°
81°
30
95°
80°
31
96°
81°
1
95°
81°
2
96°
80°
3
95°
80°
4
94°
79°
5
91°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chennai
Chennai's August 2026 forecast shows daily high temperatures ranging from 91° to 97°, with overnight lows between 79° and 82°. The average high for August is 95° with an average low of 80°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Chennai. See also: September | October | November.