Ischia weather in September 2025

Expect 27°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Ischia in September based on long-term weather averages. There is usually 9 days with some rainfall and 73 mm of average monthly rainfall in September.

  • 27°C maximum daytime temperature in September in Ischia27
    27°C max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in September in Ischia9
    9 days with some rainfall
  • 16°C minimum night-time temperature in September in Ischia16
    16°C min night temperature
  • 12 hours of daylight per day in September in Ischia12
    12 hours of daylight per day
  • Low heat & humidity in September in IschiaL
    Low heat & humidity
  • 73 mm monthly rainfall in September in Ischia73
    73 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Ischia6
    6 (High) UV index
  • 24°C sea temperature in September in Ischia24
    24°C sea temperature

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The September weather guide for Campania (Ischia) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the Campania

How hot is it in Ischia in September?

Daytime temperatures usually reach 27°C in Ischia in September with low heat and humidity, falling to 16°C at night.

How sunny is it in Ischia in September?

There are normally 8 hours of bright sunshine each day in Ischia in September - that's 62% of daylight hours.

How warm is the sea around Ischia in September?

The average sea temperature around Ischia in September is 24°C.

Does it rain in Ischia in September?

There are usually 9 days with some rain in Ischia in September and the average monthly rainfall is 73mm.

Ischia September sunrise & sunset times

Browse the sunrise and sunset times for Ischia in September 2025. Select a month to view Ischia sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:31 18:36
Monday, 15th September 2025 05:45 18:13
Tuesday, 30th September 2025 06:00 17:48

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