S
M
T
W
T
F
S
26
84°
62°
27
72°
61°
28
74°
61°
29
75°
60°
30
77°
61°
31
78°
61°
1
78°
60°
2
75°
61°
3
73°
60°
4
75°
60°
5
78°
61°
6
78°
61°
7
77°
60°
8
79°
62°
9
78°
61°
10
77°
61°
11
76°
60°
12
78°
61°
13
78°
61°
14
77°
62°
15
79°
63°
16
80°
62°
17
79°
62°
18
79°
61°
19
78°
60°
20
78°
60°
21
77°
59°
22
78°
61°
23
78°
60°
24
75°
58°
25
72°
52°
26
72°
59°
27
73°
59°
28
72°
55°
29
72°
59°
30
73°
55°
31
72°
58°
1
76°
52°
2
71°
52°
3
72°
55°
4
75°
56°
5
76°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Saint-Nazaire
Saint-Nazaire's August 2026 forecast shows daily high temperatures ranging from 71° to 84°, with overnight lows between 52° and 63°. The average high for August is 76° 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 Saint-Nazaire. See also: September | October | November.
