S
M
T
W
T
F
S
26
64°
52°
27
63°
49°
28
60°
47°
29
58°
47°
30
58°
48°
1
59°
47°
2
60°
52°
3
59°
50°
4
63°
52°
5
59°
49°
6
58°
49°
7
60°
50°
8
58°
49°
9
58°
50°
10
59°
49°
11
58°
50°
12
58°
49°
13
59°
49°
14
60°
50°
15
60°
50°
16
61°
51°
17
60°
52°
18
62°
54°
19
63°
52°
20
62°
51°
21
62°
50°
22
63°
51°
23
62°
51°
24
62°
53°
25
63°
53°
26
63°
57°
27
66°
55°
28
64°
55°
29
63°
58°
30
63°
58°
31
66°
55°
1
65°
53°
2
64°
55°
3
64°
57°
4
66°
52°
5
64°
53°
6
64°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Santander
Santander's May 2026 forecast shows daily high temperatures ranging from 58° to 66°, with overnight lows between 47° and 58°. The average high for May is 62° with an average low of 52°. 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 Santander. See also: June | July | August.
