S
M
T
W
T
F
S
26
66°
48°
27
68°
46°
28
67°
44°
29
72°
48°
30
70°
50°
1
67°
52°
2
65°
55°
3
66°
56°
4
67°
47°
5
72°
51°
6
69°
48°
7
70°
51°
8
65°
55°
9
65°
52°
10
65°
55°
11
63°
53°
12
61°
54°
13
70°
53°
14
66°
51°
15
68°
52°
16
72°
54°
17
71°
52°
18
73°
54°
19
73°
53°
20
74°
58°
21
72°
59°
22
71°
59°
23
69°
56°
24
70°
58°
25
70°
56°
26
72°
55°
27
72°
56°
28
71°
55°
29
67°
53°
30
69°
55°
31
74°
58°
1
74°
59°
2
75°
60°
3
76°
59°
4
72°
55°
5
71°
57°
6
71°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Santa Barbara
Santa Barbara's May 2026 forecast shows daily high temperatures ranging from 67° to 76°, with overnight lows between 52° and 60°. The average high for May is 72° with an average low of 56°. 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 Barbara. See also: June | July | August.