S
M
T
W
T
F
S
28
69°
50°
29
73°
55°
30
75°
54°
1
71°
53°
2
75°
53°
3
77°
52°
4
76°
53°
5
74°
55°
6
72°
57°
7
72°
56°
8
79°
58°
9
79°
57°
10
78°
57°
11
77°
56°
12
78°
55°
13
73°
51°
14
74°
52°
15
77°
51°
16
78°
54°
17
76°
58°
18
79°
56°
19
73°
57°
20
76°
51°
21
73°
52°
22
77°
55°
23
79°
51°
24
78°
55°
25
77°
58°
26
80°
57°
27
79°
59°
28
80°
59°
29
79°
57°
30
80°
56°
31
80°
60°
1
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Dieppe
Dieppe's July 2026 forecast shows daily high temperatures ranging from 69° to 81°, with overnight lows between 50° and 60°. The average high for July is 76° with an average low of 55°. 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 Dieppe. See also: August | September | October.