S
M
T
W
T
F
S
29
50°
36°
30
45°
36°
31
48°
34°
1
48°
32°
2
57°
32°
3
59°
32°
4
66°
46°
5
75°
46°
6
68°
43°
7
72°
39°
8
73°
39°
9
73°
37°
10
61°
46°
11
77°
41°
12
57°
43°
13
48°
43°
14
57°
45°
15
57°
43°
16
70°
41°
17
73°
41°
18
75°
43°
19
64°
45°
20
63°
39°
21
61°
37°
22
66°
36°
23
70°
32°
24
73°
34°
25
73°
37°
26
73°
37°
27
73°
37°
28
70°
45°
29
73°
50°
30
72°
41°
1
77°
37°
2
81°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Basel
Basel's April 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April is ° with an average low of °. 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 Basel. See also: May | June | July.