S
M
T
W
T
F
S
29
85°
68°
30
86°
69°
31
87°
69°
1
87°
68°
2
83°
66°
3
86°
68°
4
87°
67°
5
87°
67°
6
88°
66°
7
88°
67°
8
85°
69°
9
87°
70°
10
85°
69°
11
81°
68°
12
81°
67°
13
81°
65°
14
82°
65°
15
82°
64°
16
81°
64°
17
83°
63°
18
82°
64°
19
83°
63°
20
82°
64°
21
81°
64°
22
81°
64°
23
80°
65°
24
79°
65°
25
80°
66°
26
79°
66°
27
78°
65°
28
78°
66°
29
79°
66°
30
77°
67°
1
77°
66°
2
78°
65°
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 77° to 83°, with overnight lows between 63° and 68°. The average high for April is 80° with an average low of 65°. 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.