Measurements:
°C
°F
Ischia
68°F
E 14 mph
Feels like: 68°F
Precip: 0%
World Resorts Italy Ischia Weather

7 Day Weather Forecast

05.12
tue
DAY
68°F
E 13 mph
precip
0%
NIGHT
66°F
NE 9 mph
precip
64%
05.13
wed
DAY
66°F
NE 8 mph
precip
100%
NIGHT
64°F
E 17 mph
precip
77%
05.14
thu
DAY
66°F
E 22 mph
precip
87%
NIGHT
66°F
NE 11 mph
precip
100%
05.15
fri
DAY
66°F
NE 11 mph
precip
100%
NIGHT
68°F
NW 9 mph
precip
0%
05.16
sat
DAY
66°F
NE 27 mph
precip
0%
NIGHT
66°F
E 14 mph
precip
0%
05.17
sun
DAY
66°F
SE 6 mph
precip
45%
NIGHT
66°F
SE 15 mph
precip
0%
05.18
mon
DAY
66°F
E 13 mph
precip
47%
NIGHT
66°F
SE 15 mph
precip
100%

Ischia Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Ischia was 19.7°F. The maximum and minimum values were 18.6°F and 20.7°F respectively.

Ischia on the Weather Map

Best Time to Visit Ischia
The most sunny months:
July 28 days
August 27 days
June 26 days
The most warm months:
August 85.9 °F
July 85.0 °F
September 80.0 °F
Warmest sea temperature:
August 83.9 °F
July 82.6 °F
September 80.2 °F
The most cold months:
January 55.6 °F
February 56.0 °F
March 58.2 °F
The most rainy months:
November 8 days
January 6 days
December 5 days
The most windy months:
January 12 mph
February 11 mph
November 11 mph