S
M
T
W
T
F
S
29
86°
52°
30
81°
56°
31
63°
58°
1
68°
56°
2
65°
50°
3
75°
46°
4
83°
49°
5
85°
51°
6
68°
52°
7
70°
50°
8
77°
52°
9
74°
56°
10
69°
57°
11
63°
51°
12
63°
50°
13
66°
51°
14
64°
46°
15
67°
47°
16
70°
50°
17
72°
52°
18
77°
46°
19
77°
52°
20
69°
55°
21
63°
51°
22
67°
50°
23
70°
50°
24
71°
51°
25
70°
51°
26
69°
55°
27
71°
54°
28
70°
53°
29
74°
54°
30
74°
53°
1
75°
53°
2
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in San Jose
San Jose's April 2026 forecast shows daily high temperatures ranging from 63° to 75°, with overnight lows between 50° and 55°. The average high for April is 70° with an average low of 53°. 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 Jose. See also: May | June | July.