11.09
fri
fri
Day
84°F
SE 7 mph
Precip.
1%
1%
Night
70°F
S 7 mph
Precip.
3%
3%
12.09
sat
sat
Day
79°F
NE 8 mph
Precip.
8%
8%
Night
70°F
S 3 mph
Precip.
6%
6%
13.09
sun
sun
Day
79°F
NE 7 mph
Precip.
1%
1%
Night
70°F
S 6 mph
Precip.
5%
5%
14.09
mon
mon
Day
81°F
NE 6 mph
Precip.
1%
1%
Night
72°F
S 5 mph
Precip.
5%
5%
15.09
tue
tue
Day
81°F
N 9 mph
Precip.
6%
6%
Night
72°F
SE 4 mph
Precip.
10%
10%
16.09
wed
wed
Day
81°F
NE 6 mph
Precip.
1%
1%
Night
72°F
S 7 mph
Precip.
6%
6%
17.09
thu
thu
Day
81°F
E 9 mph
Precip.
1%
1%
Night
66°F
SE 12 mph
Precip.
6%
6%
18.09
fri
fri
Day
77°F
SE 11 mph
Precip.
9%
9%
Night
66°F
S 7 mph
Precip.
12%
12%
19.09
sat
sat
Day
79°F
NE 4 mph
Precip.
5%
5%
Night
68°F
S 3 mph
Precip.
17%
17%
20.09
sun
sun
Day
82°F
E 9 mph
Precip.
5%
5%
Night
70°F
S 9 mph
Precip.
9%
9%
21.09
mon
mon
Day
84°F
SE 9 mph
Precip.
1%
1%
Night
70°F
SE 10 mph
Precip.
7%
7%
22.09
tue
tue
Day
82°F
SE 14 mph
Precip.
2%
2%
Night
68°F
SE 11 mph
Precip.
10%
10%
23.09
wed
wed
Day
79°F
NE 6 mph
Precip.
4%
4%
Night
70°F
SW 4 mph
Precip.
12%
12%
24.09
thu
thu
Day
79°F
N 6 mph
Precip.
2%
2%
Night
72°F
NE 4 mph
Precip.
10%
10%
sea water
temperature
temperature
| Costa Rei |
monthly
weather
weather
| Costa Rei |
current
weather
weather
| Costa Rei |
7 days
forecast
forecast
| Costa Rei |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 78.8°F. The highest and lowest sea temperatures during the month were 79.5°F and 77.4°F.
Air temperature in Costa Rei, °F
Precipitation total in Costa Rei, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Costa Rei
Costa Rei on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Costa Rei
Local time: 14:30
September 11, friday
1500
84°F
NE
9 mph
9 mph
1800
82°F
E
2 mph
2 mph
2100
72°F
S
11 mph
11 mph
September 12, saturday
0000
70°F
S
7 mph
7 mph
0300
70°F
S
8 mph
8 mph
0600
68°F
S
11 mph
11 mph
0900
73°F
SE
2 mph
2 mph
1200
79°F
NE
8 mph
8 mph
