S
M
T
W
T
F
S
30
92°
70°
31
95°
71°
1
95°
72°
2
95°
72°
3
98°
74°
4
97°
73°
5
101°
72°
6
99°
72°
7
97°
71°
8
96°
70°
9
97°
71°
10
95°
69°
11
87°
63°
12
90°
67°
13
90°
66°
14
82°
67°
15
81°
66°
16
80°
65°
17
82°
65°
18
85°
64°
19
87°
65°
20
83°
65°
21
82°
64°
22
85°
63°
23
86°
62°
24
86°
63°
25
87°
63°
26
85°
61°
27
86°
62°
28
86°
62°
29
85°
61°
30
86°
61°
1
85°
60°
2
84°
60°
3
84°
59°
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 80° to 101°, with overnight lows between 59° and 74°. The average high for September is 89° with an average low of 66°. 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.