Guia weather in May 2025

Expect 22°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Guia in May. Check more long-term weather averages for Guia in May before you book your next holiday to Algarve in 2025/2026.

  • 22°C maximum daytime temperature in May in Guia22
    22°C max day temperature
  • 10 hours of sunshine per day
  • 5 days with some rainfall in May in Guia5
    5 days with some rainfall
  • 13°C minimum night-time temperature in May in Guia13
    13°C min night temperature
  • 14 hours of daylight per day in May in Guia14
    14 hours of daylight per day
  • No heat & humidity in May in Guia0
    No heat & humidity
  • 29 mm monthly rainfall in May in Guia29
    29 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Guia8
    8 (Very High) UV index
  • 17°C sea temperature in May in Guia17
    17°C sea temperature

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The May weather guide for Algarve (Guia) 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 the Algarve

How hot is it in Guia in May?

Daytime temperatures usually reach 22°C in Guia in May, falling to 13°C at night.

How sunny is it in Guia in May?

There are normally 10 hours of bright sunshine each day in Guia in May - that's 70% of daylight hours.

How warm is the sea around Guia in May?

The average sea temperature around Guia in May is 17°C.

Does it rain in Guia in May?

There are usually 5 days with some rain in Guia in May and the average monthly rainfall is 29mm.

Guia May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:39 19:23
Friday, 16th May 2025 05:24 19:36
Saturday, 31st May 2025 05:15 19:47

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