S
M
T
W
T
F
S
29
92°
80°
30
94°
79°
31
94°
80°
1
94°
78°
2
92°
78°
3
94°
75°
4
94°
78°
5
98°
74°
6
96°
78°
7
100°
80°
8
95°
81°
9
N/A
10
92°
75°
11
90°
74°
12
93°
74°
13
90°
75°
14
91°
73°
15
90°
74°
16
88°
79°
17
90°
80°
18
89°
79°
19
89°
79°
20
89°
79°
21
90°
78°
22
86°
80°
23
87°
80°
24
86°
80°
25
86°
79°
26
87°
80°
27
87°
80°
28
88°
79°
29
87°
80°
30
87°
80°
1
88°
79°
2
87°
80°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in San Jose
San Jose's April 2026 forecast shows daily high temperatures ranging from 86° to 93°, with overnight lows between 73° and 80°. The average high for April is 89° with an average low of 78°. 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.