S
M
T
W
T
F
S
26
58°
27°
27
43°
36°
28
46°
35°
29
41°
31°
30
43°
22°
1
51°
18°
2
65°
21°
3
66°
29°
4
55°
30°
5
36°
28°
6
38°
23°
7
48°
18°
8
60°
20°
9
48°
32°
10
42°
26°
11
57°
19°
12
51°
37°
13
63°
34°
14
75°
36°
15
77°
49°
16
54°
30°
17
54°
41°
18
47°
35°
19
41°
29°
20
60°
36°
21
63°
46°
22
60°
44°
23
59°
48°
24
64°
44°
25
67°
50°
26
71°
46°
27
68°
48°
28
73°
51°
29
76°
52°
30
67°
45°
31
66°
50°
1
65°
50°
2
62°
49°
3
68°
48°
4
69°
50°
5
68°
51°
6
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Finland
Finland's May 2026 forecast shows daily high temperatures ranging from 41° to 76°, with overnight lows between 29° and 52°. The average high for May is 63° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Finland. See also: June | July | August.
