San Juan weather in May 2025

Expect 21°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in San Juan in May. Check more long-term weather averages for San Juan in May before you book your next holiday to Ibiza in 2025/2026.

  • 21°C maximum daytime temperature in May in San Juan21
    21°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in May in San Juan8
    8 days with some rainfall
  • 13°C minimum night-time temperature in May in San Juan13
    13°C min night temperature
  • 14 hours of daylight per day in May in San Juan14
    14 hours of daylight per day
  • No heat & humidity in May in San Juan0
    No heat & humidity
  • 29 mm monthly rainfall in May in San Juan29
    29 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in San Juan8
    8 (Very High) UV index
  • 18°C sea temperature in May in San Juan18
    18°C sea temperature

More about San Juan

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The May weather guide for Ibiza (San Juan) 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 Ibiza

How hot is it in San Juan in May?

Daytime temperatures usually reach 21°C in San Juan in May, falling to 13°C at night.

How sunny is it in San Juan in May?

There are normally 9 hours of bright sunshine each day in San Juan in May - that's 63% of daylight hours.

How warm is the sea around San Juan in May?

The average sea temperature around San Juan in May is 18°C.

Does it rain in San Juan in May?

There are usually 8 days with some rain in San Juan in May and the average monthly rainfall is 29mm.

San Juan May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:56 19:47
Friday, 16th May 2025 05:40 20:01
Saturday, 31st May 2025 05:30 20:13

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