S
M
T
W
T
F
S
29
40°
28°
30
43°
29°
31
52°
30°
1
45°
27°
2
48°
28°
3
45°
37°
4
42°
36°
5
45°
36°
6
41°
35°
7
47°
35°
8
45°
29°
9
46°
26°
10
50°
27°
11
52°
29°
12
53°
28°
13
54°
27°
14
57°
27°
15
57°
29°
16
54°
35°
17
58°
44°
18
54°
33°
19
51°
29°
20
55°
32°
21
59°
35°
22
53°
36°
23
49°
37°
24
51°
38°
25
43°
35°
26
46°
35°
27
47°
35°
28
46°
37°
29
45°
38°
30
46°
37°
1
46°
39°
2
49°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Helsinki
Helsinki's April 2026 forecast shows daily high temperatures ranging from 43° to 59°, with overnight lows between 35° and 40°. The average high for April is 48° with an average low of 37°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Helsinki. See also: May | June | July.
