Rovinj weather in September 2025

Expect 24°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Rovinj in September based on long-term weather averages. There is usually 11 days with some rainfall and 96 mm of average monthly rainfall in September.

  • 24°C maximum daytime temperature in September in Rovinj24
    24°C max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in September in Rovinj11
    11 days with some rainfall
  • 15°C minimum night-time temperature in September in Rovinj15
    15°C min night temperature
  • 12 hours of daylight per day in September in Rovinj12
    12 hours of daylight per day
  • No heat & humidity in September in Rovinj0
    No heat & humidity
  • 96 mm monthly rainfall in September in Rovinj96
    96 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Rovinj5
    5 (Moderate) UV index
  • 23°C sea temperature in September in Rovinj23
    23°C sea temperature

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The September weather guide for Croatia (Rovinj) 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 Croatia

How hot is it in Rovinj in September?

Daytime temperatures usually reach 24°C in Rovinj in September, falling to 15°C at night.

How sunny is it in Rovinj in September?

There are normally 7 hours of bright sunshine each day in Rovinj in September - that's 57% of daylight hours.

How warm is the sea around Rovinj in September?

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

Does it rain in Rovinj in September?

There are usually 11 days with some rain in Rovinj in September and the average monthly rainfall is 96mm.

Rovinj September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:27 18:43
Monday, 15th September 2025 05:44 18:16
Tuesday, 30th September 2025 06:02 17:48

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