Blanes weather in September 2025

Expect daytime maximum temperatures of 25°C in Blanes, Costa Brava in September based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 69 mm of rainfall in the month.

  • 25°C maximum daytime temperature in September in Blanes25
    25°C max day temperature
  • 6 hours of sunshine per day
  • 9 days with some rainfall in September in Blanes9
    9 days with some rainfall
  • 16°C minimum night-time temperature in September in Blanes16
    16°C min night temperature
  • 12 hours of daylight per day in September in Blanes12
    12 hours of daylight per day
  • No heat & humidity in September in Blanes0
    No heat & humidity
  • 69 mm monthly rainfall in September in Blanes69
    69 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Blanes6
    6 (High) UV index
  • 23°C sea temperature in September in Blanes23
    23°C sea temperature

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The September weather guide for Costa Brava (Blanes) 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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How hot is it in Blanes in September?

Daytime temperatures usually reach 25°C in Blanes in September with no heat and humidity, falling to 16°C at night.

How sunny is it in Blanes in September?

There are normally 6 hours of bright sunshine each day in Blanes in September - that's 51% of daylight hours.

How warm is the sea around Blanes in September?

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

Does it rain in Blanes in September?

There are usually 9 days with some rain in Blanes in September and the average monthly rainfall is 69mm.

Blanes September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:15 19:22
Monday, 15th September 2025 06:29 18:58
Tuesday, 30th September 2025 06:45 18:32

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