S
M
T
W
T
F
S
26
66°
54°
27
66°
58°
28
70°
57°
29
67°
56°
30
66°
54°
31
66°
58°
1
72°
59°
2
69°
56°
3
67°
53°
4
65°
53°
5
65°
56°
6
66°
55°
7
67°
54°
8
70°
58°
9
67°
58°
10
70°
55°
11
71°
54°
12
68°
50°
13
65°
50°
14
65°
51°
15
66°
48°
16
65°
54°
17
66°
52°
18
67°
50°
19
64°
52°
20
64°
51°
21
65°
52°
22
65°
55°
23
66°
52°
24
64°
53°
25
63°
51°
26
62°
49°
27
62°
51°
28
63°
51°
29
64°
50°
30
64°
54°
31
65°
50°
1
65°
46°
2
62°
50°
3
62°
52°
4
63°
47°
5
64°
50°
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 62° to 72°, with overnight lows between 46° and 59°. The average high for August is 66° 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.
