S
M
T
W
T
F
S
26
63°
43°
27
61°
51°
28
58°
50°
29
62°
46°
30
59°
50°
31
58°
46°
1
56°
45°
2
61°
50°
3
61°
50°
4
59°
47°
5
63°
45°
6
55°
48°
7
57°
50°
8
58°
44°
9
57°
43°
10
55°
44°
11
56°
47°
12
58°
52°
13
64°
53°
14
64°
54°
15
66°
53°
16
56°
50°
17
63°
46°
18
63°
47°
19
Hist. Avg.
60°
50°
20
Hist. Avg.
61°
50°
21
Hist. Avg.
61°
50°
22
Hist. Avg.
61°
50°
23
Hist. Avg.
61°
51°
24
Hist. Avg.
61°
51°
25
Hist. Avg.
61°
51°
26
Hist. Avg.
61°
51°
27
Hist. Avg.
61°
51°
28
Hist. Avg.
61°
51°
29
Hist. Avg.
61°
51°
30
Hist. Avg.
62°
51°
31
Hist. Avg.
62°
51°
1
Hist. Avg.
62°
51°
2
Hist. Avg.
62°
51°
3
Hist. Avg.
62°
51°
4
Hist. Avg.
62°
51°
5
Hist. Avg.
62°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Buenos Aires
Buenos Aires's August 2026 forecast shows daily high temperatures ranging from 55° to 66°, with overnight lows between 43° and 54°. The average high for August is 60° with an average low of 48°. 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.