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°
51°
15
61°
49°
16
61°
51°
17
63°
48°
18
67°
53°
19
72°
54°
20
73°
57°
21
76°
59°
22
74°
57°
23
72°
58°
24
74°
56°
25
72°
57°
26
73°
58°
27
61°
51°
28
62°
52°
29
62°
51°
30
63°
52°
31
67°
56°
1
69°
56°
2
70°
59°
3
71°
59°
4
70°
58°
5
68°
57°
6
67°
54°
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 57° to 76°, with overnight lows between 48° and 59°. The average high for May is 68° with an average low of 55°. 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.
