S
M
T
W
T
F
S
26
86°
73°
27
87°
74°
28
88°
74°
29
87°
72°
30
88°
74°
31
87°
72°
1
88°
74°
2
87°
76°
3
87°
73°
4
88°
73°
5
86°
74°
6
87°
72°
7
88°
73°
8
87°
74°
9
87°
74°
10
88°
73°
11
88°
73°
12
89°
74°
13
88°
72°
14
89°
74°
15
88°
73°
16
89°
74°
17
87°
72°
18
88°
73°
19
87°
73°
20
87°
74°
21
88°
74°
22
88°
73°
23
89°
76°
24
88°
76°
25
89°
74°
26
88°
74°
27
89°
73°
28
88°
74°
29
89°
73°
30
89°
73°
31
88°
74°
1
88°
76°
2
87°
74°
3
Hist. Avg.
92°
69°
4
Hist. Avg.
92°
69°
5
Hist. Avg.
92°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Barceloneta
Barceloneta's August 2026 forecast shows daily high temperatures ranging from 86° to 89°, with overnight lows between 72° and 76°. The average high for August is 88° with an average low of 74°. 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 Barceloneta. See also: September | October | November.