S
M
T
W
T
F
S
26
57°
36°
27
63°
34°
28
63°
43°
29
61°
39°
30
63°
41°
1
72°
43°
2
77°
48°
3
75°
52°
4
70°
55°
5
61°
52°
6
52°
45°
7
54°
43°
8
62°
43°
9
68°
48°
10
70°
42°
11
54°
39°
12
55°
45°
13
58°
47°
14
55°
41°
15
56°
42°
16
58°
44°
17
60°
45°
18
61°
47°
19
63°
48°
20
61°
45°
21
63°
51°
22
69°
49°
23
62°
46°
24
66°
49°
25
69°
54°
26
70°
54°
27
72°
55°
28
71°
52°
29
63°
49°
30
65°
52°
31
70°
55°
1
71°
55°
2
73°
56°
3
72°
55°
4
73°
56°
5
72°
56°
6
71°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Basel
Basel's May 2026 forecast shows daily high temperatures ranging from 54° to 73°, with overnight lows between 39° and 56°. The average high for May is 65° with an average low of 49°. 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 Basel. See also: June | July | August.
