Climate ▸Forecast ▸September ▸October ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Temperature in Rio de Janeiro State in September

Rio de Janeiro State is a region in Brazil. In September the average maximum daytime temperatures are high and range from 24°C in Trindade to 29°C in Campos dos Goytacazes. Nighttime temperatures generally drop to 19°C in Campos dos Goytacazes and 19°C in Trindade.

What is the temperature of the different cities in Rio de Janeiro State in September?

Explore the map below to discover average September temperatures at the top destinations in Rio de Janeiro State. For a deeper dive, simply click on any destination dot.

Map not visible? Whoops sorry! Please refresh the page.
Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in September in Rio de Janeiro State?
  • According to our recent database analysis, Campos dos Goytacazes is the warmest city. It experiences an average maximum daytime temperature of approximately 29°C and rarely drops below 19°C during the night.

  • What is the coldest city in September in Rio de Janeiro State?
  • For the month of September, Trindade is the most temperate city in Rio de Janeiro State based on our records. With highs averaging 24°C and nighttime temperatures dipping to around 19°C.

  • How much sun does Rio de Janeiro State get in September?
  • Most cities enjoy a balanced amount of sunshine, with around 144 hours of sunlight anticipated in Rio de Janeiro. This ensures the days are neither too dim nor excessively sunny.

  • What is the water's temperature in September?
  • The water temperature averages approximately 21°C in Rio de Janeiro this month, a rehreshing temperature for swimming and cooling off.

    Interested in more climate information?

    We have much more information about the climate in Rio de Janeiro State. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • Weather and climate has detailed information for every country in the world. Are you going to Brazil? Get detailed historical weather averages for many cities in Brazil.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.