S
M
T
W
T
F
S
29
62°
53°
30
61°
53°
31
64°
57°
1
62°
55°
2
64°
54°
3
72°
57°
4
81°
57°
5
73°
57°
6
65°
55°
7
73°
53°
8
79°
54°
9
65°
54°
10
61°
54°
11
60°
54°
12
59°
52°
13
61°
49°
14
67°
50°
15
66°
50°
16
65°
51°
17
67°
48°
18
68°
51°
19
61°
52°
20
69°
52°
21
65°
52°
22
69°
51°
23
70°
52°
24
69°
53°
25
68°
52°
26
68°
53°
27
70°
52°
28
71°
49°
29
66°
49°
30
68°
51°
1
73°
52°
2
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Port San Luis
Port San Luis's April 2026 forecast shows daily high temperatures ranging from 61° to 73°, with overnight lows between 48° and 53°. The average high for April is 68° with an average low of 51°. 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 Port San Luis. See also: May | June | July.
