S
M
T
W
T
F
S
26
62°
59°
27
63°
56°
28
63°
52°
29
71°
53°
30
63°
57°
1
73°
57°
2
71°
59°
3
69°
55°
4
68°
53°
5
68°
55°
6
69°
56°
7
72°
58°
8
70°
58°
9
69°
57°
10
70°
56°
11
71°
58°
12
71°
57°
13
73°
58°
14
70°
56°
15
64°
52°
16
65°
53°
17
65°
53°
18
66°
54°
19
66°
53°
20
67°
54°
21
72°
58°
22
73°
60°
23
73°
59°
24
71°
57°
25
72°
59°
26
73°
59°
27
72°
58°
28
71°
56°
29
70°
55°
30
67°
54°
31
67°
54°
1
68°
55°
2
68°
56°
3
70°
57°
4
72°
58°
5
72°
58°
6
71°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rancho Santa Fe
Rancho Santa Fe's May 2026 forecast shows daily high temperatures ranging from 64° to 73°, with overnight lows between 52° and 60°. The average high for May is 70° 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 Rancho Santa Fe. See also: June | July | August.
