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September Weather in Rio Tinto, Brazil

Last updated: August 22, 2025

In September, the average temperature in Rio Tinto, Brazil hovers around 25°C (77°F), making it pleasantly warm. Expect lows of 22°C (72°F) and highs reaching 28°C (84°F). During this month, precipitation measures about 62 mm (2.4 in) spread over 21 days, contributing to an average humidity of 72%. Whether you’re exploring or relaxing, it’s a climate that invites comfort and enjoyment!

September Temperature in Rio Tinto

In September in Rio Tinto, the average temperature is 25°C (77°F). Maximums can reach 28°C (84°F), while minimums can dip as low as 22°C (72°F). This pleasant climate makes Rio Tinto an ideal destination for travelers seeking comfortable weather.

September Weather in Rio Tinto: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rio Tinto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Tinto, September typically has an average temperature of 25°C (77°F), with highs reaching up to 28°C (84°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec808180807978767677798080
Data source: Temperature data for Rio Tinto generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Rio Tinto

In Rio Tinto in September, the precipitation amount is 62 mm (2.4 in) spread over 21 days.

September Precipitation Trends in Rio Tinto

The chart displays monthly precipitation patterns in Rio Tinto, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Rio Tinto, September typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec631051641831911491837462474055
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rio Tinto

In Rio Tinto in September, humidity is 72%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace that clings to your skin, making outdoor exploration both vibrant and a bit taxing as you sweat slightly more and seek shade often while enjoying the scenery.

September Average Humidity in Rio Tinto

This chart illustrates the average monthly humidity levels in Rio Tinto, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Rio Tinto is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%90%89%90%86%80%77%72%68%66%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rio Tinto

In Rio Tinto in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Rio Tinto.

Maximum UV Index Levels in Rio Tinto for September

The chart shows the monthly maximum UV Index (UVI) for Rio Tinto in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Rio Tinto typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141211111213131414
Data source: Rio Tinto September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Rio Tinto Compares to Other Months

Weather in Rio Tinto varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Rio Tinto, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Rio Tinto, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)63 mm (2.5 inches)86%extreme
February Weather27°C (81°F)105 mm (4.1 inches)89%extreme
March Weather27°C (81°F)164 mm (6.4 inches)89%extreme
April Weather27°C (80°F)183 mm (7.2 inches)89%extreme
May Weather26°C (79°F)191 mm (7.5 inches)90%extreme
June Weather25°C (78°F)149 mm (5.9 inches)86%extreme
July Weather25°C (77°F)183 mm (7.2 inches)80%extreme
August Weather25°C (77°F)74 mm (2.9 inches)77%extreme
September Weather25°C (77°F)62 mm (2.4 inches)72%extreme
October Weather26°C (79°F)47 mm (1.8 inches)68%extreme
November Weather27°C (80°F)40 mm (1.6 inches)66%extreme
December Weather27°C (80°F)55 mm (2.2 inches)70%extreme

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