Measurements:
°C
°F
CURRENT WEATHER
08:04
Ischia
80°F
SW 7 mph
Feels like: 82°F
Precip: 3%
World Resorts Italy Ischia Weather

7 Day Weather Forecast

09.13
sun
DAY
82°F
E 2 mph
precip
1%
NIGHT
82°F
S 7 mph
precip
4%
09.14
mon
DAY
80°F
N 4 mph
precip
11%
NIGHT
82°F
S 9 mph
precip
5%
09.15
tue
DAY
80°F
NE 4 mph
precip
3%
NIGHT
82°F
SE 6 mph
precip
3%
09.16
wed
DAY
80°F
N 5 mph
precip
4%
NIGHT
80°F
E 4 mph
precip
3%
09.17
thu
DAY
80°F
N 6 mph
precip
5%
NIGHT
80°F
NE 4 mph
precip
9%
09.18
fri
DAY
80°F
N 7 mph
precip
18%
NIGHT
80°F
N 4 mph
precip
18%
09.19
sat
DAY
80°F
N 9 mph
precip
20%
NIGHT
80°F
NE 2 mph
precip
17%

Ischia Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Ischia was 25.9°F. The maximum and minimum values were 24.4°F and 26.7°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 84.3 °F
July 82.9 °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
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