S
M
T
W
T
F
S
28
67°
50°
29
66°
54°
30
70°
55°
1
72°
56°
2
71°
56°
3
70°
55°
4
71°
57°
5
74°
57°
6
74°
56°
7
73°
56°
8
73°
57°
9
72°
57°
10
73°
56°
11
75°
56°
12
71°
57°
13
69°
54°
14
68°
53°
15
68°
51°
16
67°
50°
17
67°
51°
18
68°
52°
19
68°
51°
20
69°
52°
21
69°
56°
22
70°
57°
23
72°
58°
24
73°
58°
25
73°
57°
26
70°
57°
27
70°
55°
28
71°
52°
29
69°
53°
30
69°
53°
31
70°
50°
1
69°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Helsinki
Helsinki's July 2026 forecast shows daily high temperatures ranging from 66° to 75°, with overnight lows between 50° and 58°. The average high for July is 70° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Helsinki. See also: August | September | October.