S
M
T
W
T
F
S
26
63°
57°
27
61°
57°
28
64°
59°
29
61°
57°
30
66°
54°
1
68°
55°
2
64°
57°
3
63°
54°
4
61°
52°
5
61°
52°
6
61°
52°
7
68°
46°
8
70°
50°
9
73°
52°
10
68°
52°
11
64°
46°
12
63°
54°
13
63°
54°
14
57°
52°
15
61°
50°
16
63°
50°
17
61°
54°
18
63°
53°
19
71°
55°
20
72°
56°
21
87°
61°
22
91°
62°
23
68°
58°
24
69°
57°
25
73°
56°
26
72°
58°
27
74°
59°
28
76°
60°
29
73°
58°
30
72°
59°
31
64°
54°
1
66°
54°
2
66°
54°
3
70°
57°
4
70°
57°
5
69°
59°
6
72°
61°
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 63° to 91°, with overnight lows between 53° and 62°. The average high for May is 72° with an average low of 57°. 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.
