S
M
T
W
T
F
S
27
61°
49°
28
63°
49°
29
62°
47°
30
56°
46°
1
56°
46°
2
57°
47°
3
57°
48°
4
59°
47°
5
61°
46°
6
55°
46°
7
54°
44°
8
60°
46°
9
58°
46°
10
53°
45°
11
54°
45°
12
53°
42°
13
54°
40°
14
54°
41°
15
53°
40°
16
57°
38°
17
55°
41°
18
52°
45°
19
57°
43°
20
57°
43°
21
56°
42°
22
56°
39°
23
54°
40°
24
51°
38°
25
53°
36°
26
49°
35°
27
48°
39°
28
49°
37°
29
55°
37°
30
54°
40°
31
50°
39°
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 48° to 63°, with overnight lows between 35° and 49°. The average high for October is 55° with an average low of 43°. 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.