Santander weather in May 2025

Expect 18°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Santander in May. Check more long-term weather averages for Santander in May before you book your next holiday to Spain in 2025/2026.

  • 18°C maximum daytime temperature in May in Santander18
    18°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Santander16
    16 days with some rainfall
  • 11°C minimum night-time temperature in May in Santander11
    11°C min night temperature
  • 15 hours of daylight per day in May in Santander15
    15 hours of daylight per day
  • No heat & humidity in May in Santander0
    No heat & humidity
  • 88 mm monthly rainfall in May in Santander88
    88 mm of monthly rainfall
  • UV (maximum) index 7 (High) in May in Santander7
    7 (High) UV index
  • 15°C sea temperature in May in Santander15
    15°C sea temperature

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The May 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 / mm)  |  Imperial (°F / inches)

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More about Spain

How hot is it in Santander in May?

Daytime temperatures usually reach 18°C in Santander in May, falling to 11°C at night.

How sunny is it in Santander in May?

There are normally 6 hours of bright sunshine each day in Santander in May - that's 39% of daylight hours.

How warm is the sea around Santander in May?

The average sea temperature around Santander in May is 15°C.

Does it rain in Santander in May?

There are usually 16 days with some rain in Santander in May and the average monthly rainfall is 88mm.

Santander May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:08 20:17
Friday, 16th May 2025 05:50 20:34
Saturday, 31st May 2025 05:38 20:49

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