Italian Riviera weather in September 2025

Expect 23°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Italian Riviera in September. Check more long-term weather averages for Italian Riviera in September before you book your next holiday to Italian Riviera in 2025/2026.

  • 23°C maximum daytime temperature in September in Italian Riviera (Genoa)23
    23°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in September in Italian Riviera (Genoa)9
    9 days with some rainfall
  • 15°C minimum night-time temperature in September in Italian Riviera (Genoa)15
    15°C min night temperature
  • 12 hours of daylight per day in September in Italian Riviera (Genoa)12
    12 hours of daylight per day
  • No heat & humidity in September in Italian Riviera (Genoa)0
    No heat & humidity
  • 107 mm monthly rainfall in September in Italian Riviera (Genoa)107
    107 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Italian Riviera (Genoa)5
    5 (Moderate) UV index
  • 23°C sea temperature in September in Italian Riviera (Genoa)23
    23°C sea temperature

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The September weather guide for Italian Riviera (Genoa) 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.

Top Italian Riviera destinations

Below are average maximum temperatures at popular countries, regions and places in the Italian Riviera in September. Select a holiday destination to see more weather parameters.

All Italian Riviera destinations

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

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More about Italy

How hot is it in the Italian Riviera in September?

Daytime temperatures usually reach 23°C in Genoa, Italian Riviera in September, falling to 15°C at night.

How sunny is it in the Italian Riviera in September?

There are normally 7 hours of bright sunshine each day in Genoa, Italian Riviera in September - that's 52% of daylight hours.

How warm is the sea around the Italian Riviera in September?

The average sea temperature around Genoa, Italian Riviera in September is 23°C.

Does it rain in the Italian Riviera in September?

There are usually 9 days with some rain in Genoa, Italian Riviera in September and the average monthly rainfall is 107mm.

Italian Riviera September sunrise & sunset times

Browse the sunrise and sunset times for Italian Riviera in September 2025. Select a month to view Italian Riviera sunrise and sunset times for the next 12 months. The Italian Riviera sunrise and sunset times shown below are for Genoa.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:47 19:00
Monday, 15th September 2025 06:03 18:35
Tuesday, 30th September 2025 06:21 18:07

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