S
M
T
W
T
F
S
26
68°
56°
27
68°
53°
28
68°
49°
29
68°
48°
30
69°
49°
1
69°
51°
2
69°
61°
3
68°
58°
4
69°
56°
5
69°
54°
6
70°
55°
7
72°
59°
8
71°
61°
9
69°
60°
10
71°
59°
11
72°
58°
12
73°
60°
13
72°
60°
14
70°
59°
15
69°
58°
16
70°
60°
17
72°
61°
18
72°
62°
19
71°
62°
20
73°
61°
21
73°
62°
22
72°
62°
23
73°
63°
24
73°
63°
25
72°
62°
26
72°
63°
27
71°
62°
28
66°
60°
29
65°
60°
30
67°
61°
31
66°
62°
1
67°
63°
2
69°
62°
3
68°
62°
4
68°
61°
5
68°
61°
6
67°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Chula Vista
Chula Vista's May 2026 forecast shows daily high temperatures ranging from 65° to 73°, with overnight lows between 54° and 63°. The average high for May is 70° with an average low of 60°. 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 Chula Vista. See also: June | July | August.
