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
72°
49°
17
73°
47°
18
77°
52°
19
74°
52°
20
65°
53°
21
65°
52°
22
68°
50°
23
70°
52°
24
73°
51°
25
74°
53°
26
73°
55°
27
72°
54°
28
74°
53°
29
73°
47°
30
67°
47°
1
67°
48°
2
69°
48°
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 65° to 77°, with overnight lows between 47° and 55°. The average high for April is 71° 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 San Jose. See also: May | June | July.