S
M
T
W
T
F
S
26
87°
77°
27
88°
77°
28
87°
78°
29
87°
76°
30
86°
78°
1
88°
65°
2
71°
60°
3
80°
60°
4
83°
68°
5
88°
75°
6
90°
77°
7
84°
77°
8
85°
75°
9
84°
71°
10
87°
75°
11
87°
70°
12
84°
69°
13
84°
65°
14
86°
67°
15
87°
74°
16
89°
76°
17
89°
79°
18
91°
79°
19
87°
80°
20
88°
69°
21
84°
70°
22
89°
74°
23
84°
72°
24
87°
73°
25
86°
71°
26
87°
77°
27
82°
68°
28
86°
71°
29
86°
76°
30
89°
77°
31
88°
76°
1
88°
77°
2
87°
75°
3
86°
76°
4
88°
78°
5
88°
76°
6
89°
77°
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 86° to 89°, with overnight lows between 75° and 78°. The average high for May is 88° with an average low of 76°. 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.
