S
M
T
W
T
F
S
26
92°
76°
27
86°
77°
28
88°
76°
29
85°
75°
30
86°
76°
1
87°
77°
2
87°
77°
3
87°
77°
4
88°
77°
5
88°
77°
6
87°
76°
7
86°
75°
8
87°
74°
9
86°
75°
10
86°
77°
11
87°
77°
12
86°
78°
13
84°
74°
14
85°
75°
15
84°
75°
16
84°
76°
17
85°
75°
18
84°
75°
19
84°
74°
20
85°
76°
21
85°
76°
22
86°
75°
23
85°
75°
24
85°
74°
25
86°
75°
26
85°
75°
27
86°
74°
28
85°
75°
29
85°
76°
30
86°
75°
31
85°
77°
1
86°
76°
2
86°
77°
3
87°
77°
4
86°
76°
5
86°
77°
6
87°
77°
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 84° to 88°, with overnight lows between 74° and 78°. The average high for May is 86° with an average low of 76°. 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.
