S
M
T
W
T
F
S
26
70°
61°
27
68°
61°
28
77°
61°
29
73°
63°
30
72°
63°
31
70°
59°
1
68°
57°
2
75°
57°
3
N/A
4
75°
62°
5
72°
59°
6
69°
59°
7
70°
59°
8
75°
60°
9
75°
63°
10
73°
62°
11
72°
63°
12
75°
63°
13
71°
61°
14
71°
60°
15
70°
61°
16
65°
62°
17
63°
62°
18
62°
61°
19
62°
61°
20
63°
60°
21
63°
61°
22
62°
60°
23
64°
61°
24
66°
63°
25
67°
63°
26
65°
62°
27
65°
62°
28
66°
63°
29
67°
62°
30
68°
63°
31
67°
63°
1
64°
62°
2
63°
60°
3
63°
59°
4
61°
61°
5
63°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Saint Peter Port
Saint Peter Port's August 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 59° and 63°. The average high for August is 67° with an average low of 61°. 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 Saint Peter Port. See also: September | October | November.