S
M
T
W
T
F
S
26
85°
64°
27
84°
65°
28
86°
65°
29
86°
64°
30
84°
64°
31
86°
65°
1
86°
66°
2
85°
62°
3
79°
59°
4
78°
58°
5
78°
57°
6
77°
56°
7
78°
55°
8
78°
55°
9
79°
56°
10
80°
63°
11
84°
60°
12
81°
64°
13
84°
65°
14
85°
62°
15
81°
60°
16
82°
61°
17
83°
62°
18
82°
60°
19
76°
55°
20
76°
54°
21
77°
57°
22
81°
61°
23
82°
61°
24
75°
54°
25
75°
56°
26
76°
57°
27
74°
51°
28
74°
53°
29
76°
53°
30
78°
54°
31
76°
53°
1
75°
54°
2
77°
56°
3
78°
55°
4
78°
58°
5
77°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Karlsruhe
Karlsruhe's August 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 51° and 66°. The average high for August is 80° with an average low of 59°. 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 Karlsruhe. See also: September | October | November.