S
M
T
W
T
F
S
26
66°
56°
27
67°
57°
28
71°
54°
29
71°
55°
30
70°
58°
1
72°
61°
2
69°
60°
3
68°
56°
4
70°
56°
5
71°
57°
6
73°
56°
7
77°
60°
8
81°
61°
9
79°
62°
10
78°
59°
11
79°
60°
12
86°
62°
13
81°
60°
14
79°
61°
15
78°
61°
16
76°
60°
17
78°
62°
18
78°
62°
19
79°
61°
20
78°
62°
21
78°
62°
22
78°
61°
23
79°
63°
24
79°
63°
25
78°
62°
26
78°
63°
27
77°
62°
28
71°
60°
29
70°
59°
30
71°
60°
31
72°
62°
1
73°
63°
2
76°
62°
3
75°
62°
4
74°
61°
5
73°
60°
6
72°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Santa Ana
Santa Ana's May 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 56° and 63°. The average high for May is 76° 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 Santa Ana. See also: June | July | August.
