Rio de Janeiro weather in January 2025

Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Rio de Janeiro in January. Check more long-term weather averages for Rio de Janeiro in January before you book your next holiday to Brazil in 2025/2026.

  • 30°C maximum daytime temperature in January in Rio de Janeiro30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 20 days with some rainfall in January in Rio de Janeiro20
    20 days with some rainfall
  • 21°C minimum night-time temperature in January in Rio de Janeiro21
    21°C min night temperature
  • 13 hours of daylight per day in January in Rio de Janeiro13
    13 hours of daylight per day
  • High heat & humidity in January in Rio de JaneiroH
    High heat & humidity
  • 203 mm monthly rainfall in January in Rio de Janeiro203
    203 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Rio de Janeiro11
    11+ (Extreme) UV index
  • 25°C sea temperature in January in Rio de Janeiro25
    25°C sea temperature

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The January weather guide for Brazil (Rio de Janeiro) 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 Brazil

How hot is it in Rio de Janeiro in January?

Daytime temperatures usually reach 30°C in Rio de Janeiro in January with high heat and humidity, falling to 21°C at night.

How sunny is it in Rio de Janeiro in January?

There are normally 6 hours of bright sunshine each day in Rio de Janeiro in January - that's 48% of daylight hours.

How warm is the sea around Rio de Janeiro in January?

The average sea temperature around Rio de Janeiro in January is 25°C.

Does it rain in Rio de Janeiro in January?

There are usually 20 days with some rain in Rio de Janeiro in January and the average monthly rainfall is 203mm.

Rio de Janeiro January sunrise & sunset times

Browse the sunrise and sunset times for Rio de Janeiro in January 2025. Select a month to view Rio de Janeiro sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 05:11 18:42
Thursday, 16th January 2025 05:22 18:44
Friday, 31st January 2025 05:32 18:40

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