Current sea water temperature:
+62.6°F
| Minimum sea water temperature in January: | 63.9°F |
| Maximum sea water temperature in January: | 57.2°F |
| Average sea water temperature in January: | 59.9°F |
| more information | |
14 days
forecast
forecast
| Ischia |
monthly
weather
weather
| Ischia |
Sea water temperature for the last 10 days:
| December 31 | 62.6°F | December 26 | 62.8°F |
| December 30 | 62.4°F | December 25 | 63.0°F |
| December 29 | 63.0°F | December 24 | 63.3°F |
| December 28 | 63.0°F | December 23 | 63.7°F |
| December 27 | 63.1°F | December 22 | 64.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Ischia?
Based on the data about daily sea water temperature for the last three years the warmest sea in Ischia was noticed in August, July and September.
Monthly Sea Temperatures in Ischia, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 80.2°F. The highest and lowest sea temperatures during the month were 81.5°F and 78.1°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 80.6°F. The highest and lowest sea temperatures during the month were 82.9°F and 78.6°F.
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.
current
weather
weather
| Ischia |
weather in
January
January
| Ischia |
Best time for vacation in Ischia
Ischia on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Ischia
Local time: 22:56
January 01, thursday
0000
48°F
SW
16 mph
16 mph
0300
46°F
SW
11 mph
11 mph
0600
46°F
W
5 mph
5 mph
0900
48°F
NW
6 mph
6 mph
1200
50°F
NW
7 mph
7 mph
1500
54°F
NW
10 mph
10 mph
1800
54°F
NW
12 mph
12 mph
2100
54°F
NW
15 mph
15 mph
