14.09
mon
mon
Day
77°F
SE 6 mph
Precip.
5%
5%
Night
79°F
SW 13 mph
Precip.
3%
3%
15.09
tue
tue
Day
79°F
S 6 mph
Precip.
2%
2%
Night
79°F
SE 6 mph
Precip.
15%
15%
16.09
wed
wed
Day
75°F
NW 9 mph
Precip.
4%
4%
Night
77°F
NE 4 mph
Precip.
4%
4%
17.09
thu
thu
Day
77°F
N 5 mph
Precip.
8%
8%
Night
77°F
NE 6 mph
Precip.
7%
7%
18.09
fri
fri
Day
75°F
N 6 mph
Precip.
57%
57%
Night
77°F
SE 13 mph
Precip.
3%
3%
19.09
sat
sat
Day
73°F
SE 6 mph
Precip.
4%
4%
Night
77°F
S 9 mph
Precip.
4%
4%
20.09
sun
sun
Day
77°F
NW 5 mph
Precip.
3%
3%
Night
77°F
NE 8 mph
Precip.
4%
4%
21.09
mon
mon
Day
77°F
SE 4 mph
Precip.
3%
3%
Night
77°F
SE 7 mph
Precip.
5%
5%
22.09
tue
tue
Day
77°F
SE 5 mph
Precip.
2%
2%
Night
77°F
SE 10 mph
Precip.
7%
7%
23.09
wed
wed
Day
77°F
E 7 mph
Precip.
12%
12%
Night
77°F
NE 10 mph
Precip.
7%
7%
24.09
thu
thu
Day
75°F
SW 19 mph
Precip.
9%
9%
Night
72°F
SW 17 mph
Precip.
5%
5%
25.09
fri
fri
Day
75°F
W 10 mph
Precip.
3%
3%
Night
75°F
SW 19 mph
Precip.
3%
3%
26.09
sat
sat
Day
75°F
W 14 mph
Precip.
10%
10%
Night
72°F
SW 22 mph
Precip.
2%
2%
27.09
sun
sun
Day
73°F
W 13 mph
Precip.
1%
1%
Night
75°F
SW 19 mph
Precip.
1%
1%
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 78.5°F. The highest and lowest sea temperatures during the month were 80.1°F and 75.9°F.
Air temperature in Ischia, °F
Precipitation total in Ischia, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Ischia
Ischia on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Ischia
Local time: 17:52
September 14, monday
1800
79°F
E
14 mph
14 mph
2100
79°F
SE
8 mph
8 mph
September 15, tuesday
0000
79°F
SW
13 mph
13 mph
0300
77°F
SW
12 mph
12 mph
0600
77°F
SW
12 mph
12 mph
0900
77°F
SW
11 mph
11 mph
1200
79°F
S
6 mph
6 mph
1500
79°F
E
16 mph
16 mph
