S
M
T
W
T
F
S
30
86°
75°
31
86°
74°
1
86°
76°
2
85°
76°
3
86°
76°
4
85°
75°
5
85°
72°
6
86°
73°
7
85°
73°
8
85°
72°
9
84°
74°
10
84°
75°
11
85°
73°
12
85°
74°
13
85°
75°
14
85°
75°
15
86°
75°
16
85°
76°
17
85°
74°
18
86°
74°
19
85°
75°
20
86°
74°
21
86°
73°
22
85°
72°
23
84°
74°
24
84°
76°
25
83°
77°
26
83°
76°
27
84°
78°
28
84°
77°
29
84°
76°
30
84°
76°
1
84°
77°
2
85°
76°
3
84°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Thursday Island
Thursday Island's September 2026 forecast shows daily high temperatures ranging from 83° to 86°, with overnight lows between 72° and 78°. The average high for September is 85° with an average low of 75°. 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 Thursday Island. See also: October | November | December.
