S
M
T
W
T
F
S
30
96°
72°
31
95°
71°
1
95°
71°
2
94°
70°
3
95°
70°
4
96°
72°
5
96°
71°
6
95°
70°
7
93°
71°
8
92°
70°
9
94°
71°
10
94°
70°
11
93°
69°
12
89°
68°
13
91°
68°
14
91°
67°
15
90°
68°
16
86°
67°
17
88°
67°
18
90°
59°
19
88°
60°
20
82°
60°
21
83°
63°
22
84°
66°
23
89°
66°
24
88°
65°
25
89°
66°
26
90°
65°
27
90°
65°
28
89°
62°
29
88°
62°
30
88°
63°
1
87°
64°
2
Hist. Avg.
84°
59°
3
Hist. Avg.
84°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Italy
Italy's September 2026 forecast shows daily high temperatures ranging from 82° to 96°, with overnight lows between 59° and 72°. The average high for September is 91° with an average low of 67°. 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 Italy. See also: October | November | December.