S
M
T
W
T
F
S
26
84°
70°
27
85°
70°
28
85°
71°
29
86°
72°
30
90°
71°
1
85°
71°
2
83°
67°
3
84°
67°
4
85°
66°
5
82°
62°
6
84°
68°
7
82°
71°
8
84°
69°
9
88°
68°
10
89°
72°
11
88°
74°
12
91°
75°
13
95°
74°
14
93°
74°
15
92°
76°
16
88°
76°
17
88°
71°
18
83°
67°
19
84°
68°
20
84°
70°
21
86°
72°
22
85°
71°
23
84°
70°
24
87°
70°
25
87°
72°
26
85°
73°
27
86°
71°
28
86°
71°
29
85°
70°
30
84°
74°
31
87°
72°
1
89°
76°
2
91°
76°
3
92°
73°
4
88°
74°
5
87°
71°
6
86°
68°
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 ° 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 Buenos Aires. See also: June | July | August.
