S
M
T
W
T
F
S
26
77°
47°
27
71°
48°
28
78°
44°
29
79°
46°
30
75°
54°
1
57°
44°
2
66°
46°
3
72°
47°
4
77°
55°
5
64°
52°
6
68°
46°
7
74°
41°
8
84°
46°
9
88°
54°
10
82°
57°
11
83°
53°
12
91°
60°
13
90°
63°
14
88°
61°
15
87°
59°
16
86°
59°
17
84°
57°
18
83°
59°
19
84°
52°
20
82°
56°
21
81°
51°
22
83°
52°
23
83°
59°
24
87°
61°
25
81°
53°
26
72°
53°
27
82°
54°
28
84°
60°
29
86°
66°
30
84°
56°
31
86°
61°
1
92°
65°
2
82°
60°
3
83°
60°
4
82°
61°
5
84°
61°
6
88°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in San Jose
San Jose's May 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 56° and 65°. The average high for May is 85° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in San Jose. See also: June | July | August.
