Porto Alegre weather in March 2026

Expect daytime maximum temperatures of 82°F in Porto Alegre, Brazil in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 18 days with some rainfall and typically 4.1 inches of rainfall in the month.

  • 82°F maximum daytime temperature in March in Porto Alegre82
    82°F max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in March in Porto Alegre18
    18 days with some rainfall
  • 66°F minimum night-time temperature in March in Porto Alegre66
    66°F min night temperature
  • 12 hours of daylight per day in March in Porto Alegre12
    12 hours of daylight per day
  • Low heat & humidity in March in Porto AlegreL
    Low heat & humidity
  • 4.1 inches monthly rainfall in March in Porto Alegre4.1
    4.1 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in March in Porto Alegre10
    10 (Very High) UV index

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The March 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 March?

Daytime temperatures usually reach 82°F in Porto Alegre in March with low heat and humidity, falling to 66°F at night.

How sunny is it in Porto Alegre in March?

There are normally 6 hours of bright sunshine each day in Porto Alegre in March - that's 52% of daylight hours.

Does it rain in Porto Alegre in March?

There are usually 18 days with some rain in Porto Alegre in March and the average monthly rainfall is 4.1 inches.

Porto Alegre March sunrise & sunset times

Browse the sunrise and sunset times for Porto Alegre in March 2026. Select a month to view Porto Alegre sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st March 2026 06:16 18:58
Monday, 16th March 2026 06:26 18:41
Tuesday, 31st March 2026 06:35 18:22

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