S
M
T
W
T
F
S
27
57°
48°
28
68°
45°
29
73°
50°
30
72°
52°
1
66°
52°
2
63°
50°
3
61°
50°
4
70°
46°
5
82°
54°
6
72°
55°
7
68°
52°
8
81°
52°
9
84°
54°
10
82°
54°
11
66°
54°
12
63°
54°
13
68°
54°
14
72°
48°
15
75°
50°
16
72°
54°
17
66°
54°
18
73°
50°
19
79°
55°
20
73°
54°
21
81°
50°
22
72°
54°
23
63°
52°
24
61°
51°
25
66°
54°
26
70°
54°
27
75°
52°
28
64°
54°
29
79°
54°
30
88°
55°
31
91°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in San Carlos
San Carlos's May 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 San Carlos. See also: June | July | August.