S
M
T
W
T
F
S
26
92°
83°
27
92°
83°
28
N/A
29
89°
79°
30
88°
79°
31
86°
78°
1
84°
79°
2
86°
79°
3
87°
80°
4
87°
80°
5
88°
79°
6
88°
79°
7
88°
80°
8
88°
77°
9
87°
78°
10
88°
80°
11
88°
80°
12
88°
80°
13
88°
80°
14
88°
80°
15
89°
80°
16
88°
79°
17
86°
80°
18
87°
80°
19
88°
80°
20
88°
80°
21
89°
79°
22
87°
80°
23
85°
79°
24
85°
79°
25
84°
78°
26
85°
78°
27
85°
79°
28
84°
79°
29
86°
78°
30
87°
79°
31
88°
80°
1
88°
80°
2
89°
79°
3
88°
79°
4
89°
78°
5
88°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Colombo
Colombo's August 2026 forecast shows daily high temperatures ranging from 84° to 89°, with overnight lows between 77° and 80°. The average high for August is 87° with an average low of 79°. 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 Colombo. See also: September | October | November.