S
M
T
W
T
F
S
30
90°
76°
31
91°
75°
1
92°
75°
2
91°
76°
3
92°
76°
4
93°
75°
5
93°
76°
6
92°
76°
7
93°
75°
8
93°
75°
9
92°
74°
10
93°
75°
11
93°
75°
12
91°
74°
13
92°
73°
14
93°
74°
15
92°
75°
16
92°
75°
17
93°
74°
18
92°
74°
19
92°
74°
20
Hist. Avg.
88°
73°
21
Hist. Avg.
88°
73°
22
Hist. Avg.
88°
73°
23
Hist. Avg.
88°
73°
24
Hist. Avg.
88°
73°
25
Hist. Avg.
88°
73°
26
Hist. Avg.
88°
73°
27
Hist. Avg.
88°
73°
28
Hist. Avg.
88°
73°
29
Hist. Avg.
88°
73°
30
Hist. Avg.
88°
73°
1
Hist. Avg.
88°
73°
2
Hist. Avg.
88°
73°
3
Hist. Avg.
88°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Costa Brava
Costa Brava's September 2026 forecast shows daily high temperatures ranging from 90° to 93°, with overnight lows between 73° and 76°. The average high for September is 92° with an average low of 75°. 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 Brava. See also: October | November | December.
