Porto Alegre weather in January 2026

Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Porto Alegre in January based on long-term weather averages. There is usually 19 days with some rainfall and 104 mm of average monthly rainfall in January.

  • 29°C maximum daytime temperature in January in Porto Alegre29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 19 days with some rainfall in January in Porto Alegre19
    19 days with some rainfall
  • 20°C minimum night-time temperature in January in Porto Alegre20
    20°C min night temperature
  • 14 hours of daylight per day in January in Porto Alegre14
    14 hours of daylight per day
  • Moderate heat & humidity in January in Porto AlegreM
    Moderate heat & humidity
  • 104 mm monthly rainfall in January in Porto Alegre104
    104 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Porto Alegre11
    11+ (Extreme) UV index

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Porto Alegre by month

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The January 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Porto Alegre in January?

Daytime temperatures usually reach 29°C in Porto Alegre in January with moderate heat and humidity, falling to 20°C at night.

How sunny is it in Porto Alegre in January?

There are normally 8 hours of bright sunshine each day in Porto Alegre in January - that's 56% of daylight hours.

Does it rain in Porto Alegre in January?

There are usually 19 days with some rain in Porto Alegre in January and the average monthly rainfall is 104mm.

Porto Alegre January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 05:27 19:30
Friday, 16th January 2026 05:39 19:30
Saturday, 31st January 2026 05:53 19:24

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