S
M
T
W
T
F
S
26
80°
57°
27
79°
59°
28
80°
59°
29
79°
57°
30
80°
56°
31
80°
60°
1
81°
59°
2
80°
59°
3
79°
60°
4
80°
59°
5
79°
56°
6
78°
54°
7
79°
59°
8
80°
54°
9
80°
50°
10
74°
53°
11
74°
59°
12
77°
54°
13
73°
54°
14
76°
53°
15
Hist. Avg.
75°
54°
16
Hist. Avg.
75°
54°
17
Hist. Avg.
74°
53°
18
Hist. Avg.
74°
53°
19
Hist. Avg.
74°
53°
20
Hist. Avg.
74°
52°
21
Hist. Avg.
73°
52°
22
Hist. Avg.
73°
52°
23
Hist. Avg.
73°
52°
24
Hist. Avg.
72°
51°
25
Hist. Avg.
72°
51°
26
Hist. Avg.
72°
51°
27
Hist. Avg.
72°
50°
28
Hist. Avg.
71°
50°
29
Hist. Avg.
71°
50°
30
Hist. Avg.
71°
50°
31
Hist. Avg.
70°
49°
1
Hist. Avg.
70°
49°
2
Hist. Avg.
70°
49°
3
Hist. Avg.
69°
48°
4
Hist. Avg.
69°
48°
5
Hist. Avg.
69°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Dieppe
Dieppe's August 2026 forecast shows daily high temperatures ranging from 73° to 81°, with overnight lows between 50° and 60°. The average high for August is 78° with an average low of 57°. 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 Dieppe. See also: September | October | November.