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°
61°
12
70°
58°
13
66°
58°
14
69°
55°
15
70°
54°
16
68°
56°
17
72°
55°
18
76°
55°
19
74°
57°
20
69°
56°
21
70°
58°
22
69°
59°
23
70°
58°
24
68°
61°
25
67°
61°
26
69°
60°
27
67°
59°
28
70°
59°
29
69°
58°
30
65°
56°
1
71°
59°
2
72°
62°
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 65° to 76°, with overnight lows between 55° and 62°. The average high for April is 70° with an average low of 58°. 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.
