S
M
T
W
T
F
S
26
68°
59°
27
72°
56°
28
68°
53°
29
67°
55°
30
67°
53°
31
72°
59°
1
72°
59°
2
74°
58°
3
71°
55°
4
71°
57°
5
72°
58°
6
72°
59°
7
71°
58°
8
70°
58°
9
67°
56°
10
69°
56°
11
66°
55°
12
68°
53°
13
67°
54°
14
68°
53°
15
65°
50°
16
65°
50°
17
66°
52°
18
65°
52°
19
68°
54°
20
69°
54°
21
69°
53°
22
70°
56°
23
71°
54°
24
70°
53°
25
69°
49°
26
67°
51°
27
64°
52°
28
66°
54°
29
67°
52°
30
68°
51°
31
67°
46°
1
64°
45°
2
61°
46°
3
63°
50°
4
63°
47°
5
59°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Turku
Turku's August 2026 forecast shows daily high temperatures ranging from 59° to 74°, with overnight lows between 45° and 59°. The average high for August is 68° with an average low of 53°. 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 Turku. See also: September | October | November.