S
M
T
W
T
F
S
26
72°
37°
27
74°
36°
28
77°
49°
29
79°
51°
30
77°
47°
1
62°
48°
2
82°
39°
3
79°
45°
4
74°
44°
5
75°
49°
6
67°
44°
7
63°
47°
8
67°
37°
9
72°
36°
10
85°
33°
11
84°
38°
12
62°
44°
13
66°
39°
14
76°
48°
15
68°
47°
16
67°
41°
17
74°
33°
18
78°
33°
19
72°
34°
20
63°
33°
21
49°
39°
22
57°
37°
23
45°
39°
24
55°
36°
25
74°
30°
26
80°
33°
27
60°
35°
28
68°
41°
29
71°
36°
30
80°
36°
31
56°
43°
1
57°
46°
2
68°
37°
3
65°
44°
4
77°
39°
5
56°
40°
6
63°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Santiago
Santiago's May 2026 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 Santiago. See also: June | July | August.
