Portovenere weather in September 2025

Expect 24°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Portovenere in September. Check more long-term weather averages for Portovenere in September before you book your next holiday to Italian Riviera in 2025/2026.

  • 24°C maximum daytime temperature in September in Portovenere24
    24°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in September in Portovenere9
    9 days with some rainfall
  • 16°C minimum night-time temperature in September in Portovenere16
    16°C min night temperature
  • 12 hours of daylight per day in September in Portovenere12
    12 hours of daylight per day
  • No heat & humidity in September in Portovenere0
    No heat & humidity
  • 79 mm monthly rainfall in September in Portovenere79
    79 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Portovenere5
    5 (Moderate) UV index
  • 23°C sea temperature in September in Portovenere23
    23°C sea temperature

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The September weather guide for Italian Riviera (Portovenere) 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 Italy

How hot is it in Portovenere in September?

Daytime temperatures usually reach 24°C in Portovenere in September, falling to 16°C at night.

How sunny is it in Portovenere in September?

There are normally 7 hours of bright sunshine each day in Portovenere in September - that's 55% of daylight hours.

How warm is the sea around Portovenere in September?

The average sea temperature around Portovenere in September is 23°C.

Does it rain in Portovenere in September?

There are usually 9 days with some rain in Portovenere in September and the average monthly rainfall is 79mm.

Portovenere September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:44 18:56
Monday, 15th September 2025 06:00 18:31
Tuesday, 30th September 2025 06:17 18:03

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