S
M
T
W
T
F
S
26
70°
51°
27
70°
51°
28
72°
52°
29
71°
50°
30
68°
51°
31
69°
53°
1
68°
54°
2
69°
55°
3
68°
52°
4
69°
57°
5
72°
52°
6
72°
56°
7
69°
56°
8
69°
57°
9
70°
57°
10
72°
56°
11
71°
53°
12
72°
56°
13
73°
57°
14
69°
54°
15
70°
56°
16
69°
56°
17
71°
55°
18
71°
53°
19
75°
58°
20
75°
59°
21
Hist. Avg.
70°
58°
22
Hist. Avg.
70°
58°
23
Hist. Avg.
70°
58°
24
Hist. Avg.
70°
58°
25
Hist. Avg.
70°
58°
26
Hist. Avg.
70°
58°
27
Hist. Avg.
70°
59°
28
Hist. Avg.
71°
59°
29
Hist. Avg.
71°
59°
30
Hist. Avg.
71°
59°
31
Hist. Avg.
71°
59°
1
Hist. Avg.
71°
59°
2
Hist. Avg.
71°
59°
3
Hist. Avg.
71°
60°
4
Hist. Avg.
72°
60°
5
Hist. Avg.
72°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Coolum Beach
Coolum Beach's August 2026 forecast shows daily high temperatures ranging from 68° to 75°, with overnight lows between 50° and 59°. The average high for August is 71° with an average low of 55°. 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 Coolum Beach. See also: September | October | November.