S
M
T
W
T
F
S
26
61°
50°
27
62°
50°
28
65°
51°
29
66°
52°
30
66°
50°
31
61°
48°
1
61°
48°
2
64°
49°
3
62°
46°
4
62°
44°
5
63°
48°
6
62°
44°
7
63°
45°
8
63°
47°
9
66°
46°
10
63°
45°
11
63°
45°
12
64°
50°
13
65°
47°
14
63°
45°
15
65°
49°
16
64°
47°
17
67°
49°
18
68°
50°
19
69°
47°
20
64°
49°
21
64°
47°
22
69°
48°
23
69°
52°
24
70°
53°
25
71°
54°
26
71°
52°
27
72°
52°
28
69°
53°
29
65°
54°
30
71°
53°
31
72°
52°
1
71°
53°
2
70°
48°
3
70°
55°
4
71°
49°
5
71°
48°
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 61° to 72°, with overnight lows between 44° and 55°. The average high for August is 66° 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.