S
M
T
W
T
F
S
26
91°
68°
27
99°
69°
28
98°
69°
29
96°
67°
30
94°
70°
31
95°
65°
1
94°
68°
2
95°
68°
3
94°
67°
4
91°
69°
5
97°
69°
6
96°
68°
7
94°
68°
8
96°
67°
9
98°
64°
10
91°
65°
11
92°
67°
12
93°
67°
13
95°
66°
14
95°
65°
15
91°
65°
16
94°
67°
17
95°
68°
18
92°
68°
19
91°
69°
20
94°
66°
21
91°
65°
22
91°
66°
23
94°
66°
24
95°
63°
25
94°
62°
26
91°
61°
27
90°
62°
28
90°
63°
29
92°
64°
30
95°
65°
31
95°
64°
1
97°
62°
2
97°
61°
3
96°
62°
4
96°
61°
5
93°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Buenos Aires
Buenos Aires's August 2026 forecast shows daily high temperatures ranging from 90° to 99°, with overnight lows between 61° and 70°. The average high for August is 94° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Buenos Aires. See also: September | October | November.
