S
M
T
W
T
F
S
26
65°
49°
27
65°
46°
28
62°
50°
29
67°
50°
30
67°
46°
31
66°
45°
1
62°
46°
2
62°
48°
3
63°
50°
4
62°
48°
5
64°
45°
6
63°
45°
7
63°
47°
8
64°
48°
9
66°
50°
10
63°
48°
11
67°
52°
12
69°
46°
13
66°
51°
14
64°
50°
15
64°
47°
16
65°
49°
17
64°
52°
18
64°
51°
19
65°
54°
20
68°
49°
21
70°
50°
22
65°
48°
23
65°
48°
24
67°
49°
25
65°
47°
26
66°
48°
27
65°
48°
28
66°
49°
29
66°
51°
30
67°
47°
31
66°
48°
1
67°
50°
2
66°
48°
3
67°
49°
4
70°
53°
5
71°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sydney
Sydney's August 2026 forecast shows daily high temperatures ranging from 62° to 71°, with overnight lows between 45° and 55°. The average high for August is 65° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Sydney. See also: September | October | November.