S
M
T
W
T
F
S
27
61°
45°
28
60°
41°
29
59°
52°
30
64°
55°
1
68°
55°
2
72°
54°
3
63°
38°
4
61°
37°
5
60°
42°
6
54°
47°
7
57°
44°
8
61°
44°
9
62°
46°
10
50°
42°
11
51°
41°
12
58°
43°
13
47°
33°
14
55°
38°
15
53°
43°
16
48°
42°
17
59°
33°
18
45°
29°
19
51°
41°
20
57°
43°
21
52°
36°
22
54°
40°
23
50°
40°
24
51°
39°
25
53°
41°
26
52°
43°
27
51°
38°
28
52°
39°
29
51°
40°
30
52°
41°
31
49°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sydney
Sydney's October 2026 forecast shows daily high temperatures ranging from 45° to 59°, with overnight lows between 29° and 43°. The average high for October is 52° with an average low of 39°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Sydney. See also: November | December | January.