Porto Alegre weather in May 2025

Expect 70°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Porto Alegre in May. Check more long-term weather averages for Porto Alegre in May before you book your next holiday to Brazil in 2025/2026.

  • 70°F maximum daytime temperature in May in Porto Alegre70
    70°F max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in May in Porto Alegre14
    14 days with some rainfall
  • 55°F minimum night-time temperature in May in Porto Alegre55
    55°F min night temperature
  • 11 hours of daylight per day in May in Porto Alegre11
    11 hours of daylight per day
  • No heat & humidity in May in Porto Alegre0
    No heat & humidity
  • 3.7 inches monthly rainfall in May in Porto Alegre3.7
    3.7 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in May in Porto Alegre4
    4 (Moderate) UV index

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The May weather guide for Brazil (Porto Alegre) 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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How hot is it in Porto Alegre in May?

Daytime temperatures usually reach 70°F in Porto Alegre in May, falling to 55°F at night.

How sunny is it in Porto Alegre in May?

There are normally 5 hours of bright sunshine each day in Porto Alegre in May - that's 51% of daylight hours.

Does it rain in Porto Alegre in May?

There are usually 14 days with some rain in Porto Alegre in May and the average monthly rainfall is 3.7 inches.

Porto Alegre May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:54 17:49
Friday, 16th May 2025 07:04 17:39
Saturday, 31st May 2025 07:12 17:33

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