S
M
T
W
T
F
S
30
89°
74°
31
89°
73°
1
88°
72°
2
89°
74°
3
89°
75°
4
90°
74°
5
88°
73°
6
89°
74°
7
88°
73°
8
89°
74°
9
89°
75°
10
88°
75°
11
89°
74°
12
89°
74°
13
88°
73°
14
88°
74°
15
89°
75°
16
89°
74°
17
88°
74°
18
89°
73°
19
88°
73°
20
89°
74°
21
88°
73°
22
89°
74°
23
88°
73°
24
89°
74°
25
89°
74°
26
90°
73°
27
89°
74°
28
89°
73°
29
88°
73°
30
89°
72°
1
89°
73°
2
88°
73°
3
89°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Costa Este
Costa Este's September 2026 forecast shows daily high temperatures ranging from 88° to 90°, with overnight lows between 72° and 75°. The average high for September is 89° 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 September weather will actually feel in Costa Este. See also: October | November | December.