S
M
T
W
T
F
S
26
73°
61°
27
71°
60°
28
74°
60°
29
75°
61°
30
74°
59°
31
73°
58°
1
73°
58°
2
74°
57°
3
75°
60°
4
77°
59°
5
78°
61°
6
78°
61°
7
76°
60°
8
72°
59°
9
74°
61°
10
75°
60°
11
78°
61°
12
78°
61°
13
79°
62°
14
79°
62°
15
78°
61°
16
78°
62°
17
79°
56°
18
79°
58°
19
78°
54°
20
73°
53°
21
73°
54°
22
74°
52°
23
73°
56°
24
73°
55°
25
74°
52°
26
72°
58°
27
72°
56°
28
74°
53°
29
72°
53°
30
73°
52°
31
71°
52°
1
72°
53°
2
73°
54°
3
75°
56°
4
76°
56°
5
76°
51°
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 79°, with overnight lows between 51° and 62°. The average high for August is 75° 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 Saint-Nazaire. See also: September | October | November.
