S
M
T
W
T
F
S
29
47°
29°
30
58°
37°
31
47°
34°
1
38°
32°
2
43°
31°
3
71°
40°
4
55°
35°
5
55°
33°
6
39°
25°
7
31°
15°
8
46°
28°
9
63°
42°
10
46°
35°
11
53°
31°
12
54°
48°
13
66°
49°
14
62°
41°
15
57°
52°
16
63°
45°
17
58°
41°
18
58°
38°
19
60°
42°
20
64°
46°
21
66°
47°
22
52°
40°
23
50°
38°
24
54°
40°
25
58°
44°
26
54°
43°
27
52°
40°
28
57°
40°
29
54°
39°
30
60°
46°
1
61°
45°
2
62°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Lisbon
Lisbon's April 2026 forecast shows daily high temperatures ranging from 46° to 66°, with overnight lows between 28° and 52°. The average high for April is 57° with an average low of 42°. 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 Lisbon. See also: May | June | July.