Porto Alegre weather in October 2025

Expect 75°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Porto Alegre in October. Check more long-term weather averages for Porto Alegre in October before you book your next holiday to Brazil in 2025/2026.

  • 75°F maximum daytime temperature in October in Porto Alegre75
    75°F max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in October in Porto Alegre16
    16 days with some rainfall
  • 59°F minimum night-time temperature in October in Porto Alegre59
    59°F min night temperature
  • 13 hours of daylight per day in October in Porto Alegre13
    13 hours of daylight per day
  • Low heat & humidity in October in Porto AlegreL
    Low heat & humidity
  • 4.6 inches monthly rainfall in October in Porto Alegre4.6
    4.6 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in October in Porto Alegre10
    10 (Very High) UV index

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The October 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 October?

Daytime temperatures usually reach 75°F in Porto Alegre in October, falling to 59°F at night.

How sunny is it in Porto Alegre in October?

There are normally 7 hours of bright sunshine each day in Porto Alegre in October - that's 51% of daylight hours.

Does it rain in Porto Alegre in October?

There are usually 16 days with some rain in Porto Alegre in October and the average monthly rainfall is 4.6 inches.

Porto Alegre October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:03 18:26
Thursday, 16th October 2025 05:45 18:36
Friday, 31st October 2025 05:31 18:47

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