S
M
T
W
T
F
S
29
78°
57°
30
70°
60°
31
70°
65°
1
71°
62°
2
68°
61°
3
72°
56°
4
81°
52°
5
77°
53°
6
74°
60°
7
69°
60°
8
74°
59°
9
72°
62°
10
71°
63°
11
71°
58°
12
67°
57°
13
66°
54°
14
68°
54°
15
71°
58°
16
68°
61°
17
69°
57°
18
74°
58°
19
70°
61°
20
66°
60°
21
67°
58°
22
70°
59°
23
70°
59°
24
69°
58°
25
64°
53°
26
65°
54°
27
65°
54°
28
67°
58°
29
69°
61°
30
65°
58°
1
65°
55°
2
64°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in San Diego
San Diego's April 2026 forecast shows daily high temperatures ranging from 64° to 74°, with overnight lows between 53° and 61°. The average high for April is 68° with an average low of 57°. 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 San Diego. See also: May | June | July.
