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°
52°
19
70°
52°
20
70°
55°
21
79°
55°
22
86°
59°
23
77°
64°
24
79°
61°
25
93°
63°
26
91°
64°
27
83°
66°
28
86°
61°
29
71°
62°
30
68°
59°
31
71°
57°
1
74°
64°
2
69°
59°
3
72°
60°
4
70°
59°
5
70°
59°
6
73°
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 68° to 86°, with overnight lows between 57° and 66°. The average high for May is 73° with an average low of 61°. 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.
