World Resorts Italy Ischia Weather

Ischia sea water temperature

Current sea water temperature:
+64.4°F
Minimum sea water temperature in April: 66.7°F
Maximum sea water temperature in April: 56.5°F
Average sea water temperature in April: 60.5°F

Sea water temperature for the last 10 days:

April 28 64.4°F April 23 63.5°F
April 27 63.7°F April 22 63.7°F
April 26 63.3°F April 21 64.0°F
April 25 63.1°F April 20 63.3°F
April 24 63.1°F April 19 63.1°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.

Best time for vacation in Ischia

Sunniest months:
July 28 days
August 27 days
June 26 days
Warmest months:
August 82.3 °F
July 81.5 °F
September 77.0 °F
Warmest sea temp:
August 80.5 °F
July 79.4 °F
September 77.2 °F
Coldest months:
January 55.1 °F
February 55.4 °F
March 57.4 °F
Rainiest months:
November 8 days
January 6 days
December 5 days
Windiest months:
January 12.1 mph
February 11.4 mph
November 11.4 mph

Ischia on a weather map

Ischia
+63°F
S 1 mph
Feels like: +63°F
Precip.: 0%
Places in Italy:
Name
°F
+66°F
+66°F
+64°F
+63°F
+61°F
+63°F
+66°F
+64°F
+66°F
+63°F
+64°F
+64°F
+63°F
24 Hours Forecast
Ischia
Local time: 09:34
April 28, tuesday
1200
64°F
NE
3 mph
1500
64°F
E
6 mph
1800
66°F
SE
6 mph
2100
64°F
SE
6 mph
April 29, wednesday
0000
64°F
S
4 mph
0300
64°F
S
3 mph
0600
63°F
SW
6 mph
0900
64°F
W
5 mph
Units of measurement: °C / °F