S
M
T
W
T
F
S
30
98°
77°
31
97°
75°
1
99°
67°
2
99°
67°
3
97°
70°
4
97°
69°
5
100°
68°
6
95°
72°
7
91°
72°
8
100°
73°
9
91°
65°
10
81°
62°
11
82°
65°
12
89°
68°
13
80°
62°
14
80°
61°
15
85°
64°
16
84°
62°
17
87°
61°
18
76°
55°
19
79°
59°
20
81°
60°
21
82°
60°
22
82°
60°
23
81°
59°
24
81°
60°
25
79°
60°
26
78°
59°
27
79°
59°
28
78°
58°
29
76°
59°
30
76°
53°
1
69°
48°
2
65°
44°
3
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Savannah
Savannah's September 2026 forecast shows daily high temperatures ranging from 64° to 100°, with overnight lows between 43° and 73°. The average high for September is 81° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Savannah. See also: October | November | December.