S
M
T
W
T
F
S
26
72°
57°
27
67°
58°
28
70°
60°
29
72°
60°
30
72°
59°
1
71°
60°
2
71°
59°
3
64°
58°
4
66°
60°
5
70°
59°
6
67°
56°
7
63°
58°
8
65°
58°
9
68°
53°
10
64°
50°
11
62°
54°
12
66°
57°
13
68°
59°
14
70°
60°
15
70°
59°
16
69°
58°
17
69°
59°
18
70°
54°
19
70°
51°
20
63°
51°
21
60°
48°
22
60°
47°
23
59°
46°
24
59°
46°
25
60°
47°
26
59°
45°
27
58°
44°
28
56°
45°
29
57°
45°
30
59°
46°
31
58°
49°
1
62°
52°
2
64°
53°
3
64°
53°
4
63°
50°
5
63°
45°
6
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Buenos Aires
Buenos Aires's May 2026 forecast shows daily high temperatures ranging from 56° to 72°, with overnight lows between 44° and 60°. The average high for May is 65° with an average low of 53°. 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 Buenos Aires. See also: June | July | August.
