Santander weather in September 2025

Expect 72°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Santander in September. Check more long-term weather averages for Santander in September before you book your next holiday to Spain in 2025/2026.

  • 72°F maximum daytime temperature in September in Santander72
    72°F max day temperature
  • 5 hours of sunshine per day
  • 13 days with some rainfall in September in Santander13
    13 days with some rainfall
  • 57°F minimum night-time temperature in September in Santander57
    57°F min night temperature
  • 12 hours of daylight per day in September in Santander12
    12 hours of daylight per day
  • No heat & humidity in September in Santander0
    No heat & humidity
  • 3.4 inches monthly rainfall in September in Santander3.4
    3.4 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Santander6
    6 (High) UV index
  • 68°F sea temperature in September in Santander68
    68°F sea temperature

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The September weather guide for Spain (Santander) 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)  |  Imperial (°F)

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More about Spain

How hot is it in Santander in September?

Daytime temperatures usually reach 72°F in Santander in September, falling to 57°F at night.

How sunny is it in Santander in September?

There are normally 5 hours of bright sunshine each day in Santander in September - that's 43% of daylight hours.

How warm is the sea around Santander in September?

The average sea temperature around Santander in September is 68°F.

Does it rain in Santander in September?

There are usually 13 days with some rain in Santander in September and the average monthly rainfall is 3.4 inches.

Santander September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:39 19:50
Monday, 15th September 2025 06:55 19:25
Tuesday, 30th September 2025 07:12 18:58

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