S
M
T
W
T
F
S
26
60°
36°
27
55°
35°
28
54°
35°
29
54°
34°
30
55°
34°
1
57°
37°
2
58°
38°
3
57°
36°
4
57°
36°
5
58°
39°
6
59°
39°
7
59°
40°
8
62°
41°
9
60°
39°
10
60°
41°
11
59°
43°
12
61°
41°
13
64°
42°
14
66°
44°
15
66°
42°
16
68°
45°
17
67°
46°
18
64°
43°
19
64°
44°
20
65°
42°
21
65°
47°
22
67°
48°
23
65°
51°
24
66°
50°
25
66°
50°
26
72°
51°
27
73°
52°
28
70°
51°
29
71°
48°
30
66°
49°
31
71°
53°
1
73°
52°
2
68°
45°
3
67°
45°
4
70°
46°
5
68°
45°
6
67°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Interlaken
Interlaken's May 2026 forecast shows daily high temperatures ranging from 54° to 73°, with overnight lows between 34° and 53°. The average high for May is 64° with an average low of 43°. 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 Interlaken. See also: June | July | August.
