S
M
T
W
T
F
S
30
76°
56°
31
78°
57°
1
78°
61°
2
79°
63°
3
78°
61°
4
78°
62°
5
78°
61°
6
76°
62°
7
77°
63°
8
76°
62°
9
70°
58°
10
69°
59°
11
69°
59°
12
70°
53°
13
68°
54°
14
68°
53°
15
67°
52°
16
67°
52°
17
68°
49°
18
68°
49°
19
67°
50°
20
66°
51°
21
67°
53°
22
66°
52°
23
67°
51°
24
66°
50°
25
65°
50°
26
65°
50°
27
68°
55°
28
63°
52°
29
Hist. Avg.
66°
48°
30
Hist. Avg.
65°
48°
1
Hist. Avg.
65°
47°
2
Hist. Avg.
64°
47°
3
Hist. Avg.
64°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Novi Zagreb
Novi Zagreb's September 2026 forecast shows daily high temperatures ranging from 63° to 79°, with overnight lows between 49° and 63°. The average high for September is 71° with an average low of 55°. 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 Novi Zagreb. See also: October | November | December.
