S
M
T
W
T
F
S
26
78°
60°
27
79°
60°
28
78°
63°
29
80°
60°
30
82°
61°
31
79°
60°
1
78°
61°
2
79°
63°
3
78°
62°
4
78°
64°
5
79°
61°
6
78°
60°
7
78°
61°
8
79°
62°
9
78°
61°
10
78°
64°
11
80°
62°
12
79°
64°
13
80°
63°
14
79°
60°
15
83°
61°
16
79°
62°
17
80°
63°
18
80°
63°
19
80°
63°
20
80°
64°
21
80°
63°
22
Hist. Avg.
80°
64°
23
Hist. Avg.
80°
64°
24
Hist. Avg.
81°
64°
25
Hist. Avg.
81°
64°
26
Hist. Avg.
81°
64°
27
Hist. Avg.
81°
64°
28
Hist. Avg.
81°
64°
29
Hist. Avg.
81°
64°
30
Hist. Avg.
81°
65°
31
Hist. Avg.
81°
65°
1
Hist. Avg.
81°
65°
2
Hist. Avg.
81°
65°
3
Hist. Avg.
81°
65°
4
Hist. Avg.
81°
65°
5
Hist. Avg.
82°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Cairns City
Cairns City's August 2026 forecast shows daily high temperatures ranging from 78° to 83°, with overnight lows between 60° and 64°. The average high for August is 79° with an average low of 62°. 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 Cairns City. See also: September | October | November.