S
M
T
W
T
F
S
28
85°
56°
29
80°
60°
30
88°
55°
1
89°
53°
2
94°
59°
3
93°
58°
4
92°
55°
5
101°
56°
6
100°
64°
7
92°
62°
8
91°
63°
9
92°
57°
10
93°
56°
11
103°
61°
12
102°
64°
13
103°
63°
14
100°
60°
15
99°
59°
16
99°
61°
17
97°
63°
18
98°
65°
19
95°
65°
20
88°
60°
21
86°
61°
22
85°
61°
23
89°
63°
24
90°
62°
25
90°
63°
26
90°
60°
27
86°
62°
28
85°
63°
29
91°
64°
30
88°
65°
31
85°
64°
1
91°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Guernsey
Guernsey's July 2026 forecast shows daily high temperatures ranging from 85° to 103°, with overnight lows between 59° and 65°. The average high for July is 92° with an average low of 62°. 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 Guernsey. See also: August | September | October.
