Rio de Janeiro weather in September 2024

Expect 25°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Rio de Janeiro in September. Check more long-term weather averages for Rio de Janeiro in September before you book your next holiday to Brazil in 2024/2025.

  • 25°C maximum daytime temperature in September in Rio de Janeiro25
    25°C max day temperature
  • 5 hours of sunshine per day
  • 11 days with some rainfall in September in Rio de Janeiro11
    11 days with some rainfall
  • 17°C minimum night-time temperature in September in Rio de Janeiro17
    17°C min night temperature
  • 12 hours of daylight per day in September in Rio de Janeiro12
    12 hours of daylight per day
  • Low heat & humidity in September in Rio de JaneiroL
    Low heat & humidity
  • 96 mm monthly rainfall in September in Rio de Janeiro96
    96 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Rio de Janeiro10
    10 (Very High) UV index
  • 21°C sea temperature in September in Rio de Janeiro21
    21°C sea temperature

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The September 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 September?

Daytime temperatures usually reach 25°C in Rio de Janeiro in September with low heat and humidity, falling to 17°C at night.

How sunny is it in Rio de Janeiro in September?

There are normally 5 hours of bright sunshine each day in Rio de Janeiro in September - that's 40% of daylight hours.

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

The average sea temperature around Rio de Janeiro in September is 21°C.

Does it rain in Rio de Janeiro in September?

There are usually 11 days with some rain in Rio de Janeiro in September and the average monthly rainfall is 96mm.

Rio de Janeiro September sunrise & sunset times

Browse the sunrise and sunset times for Rio de Janeiro in September 2024. Select a month to view Rio de Janeiro sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2024 06:03 17:43
Sunday, 15th September 2024 05:49 17:47
Monday, 30th September 2024 05:34 17:52

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