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September Weather in Rio Real, Brazil

Last updated: August 22, 2025

In Rio Real, Brazil, the average temperature in September is a pleasant 24°C (76°F). Expect a range of 17°C (62°F) at its coolest to a warm 34°C (94°F) at its peak. During this period, you can anticipate about 50 mm (2.0 in) of precipitation spread over 15 days, with an average humidity of 70%.

September Temperature in Rio Real

In September in Rio Real, the average temperature is 24°C (76°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as 17°C (62°F). This climate makes Rio Real an ideal destination for travelers seeking pleasant weather and comfortable conditions for outdoor activities.

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

The chart illustrates September temperature patterns in Rio Real, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Real, September typically has an average temperature of 24°C (76°F), with highs reaching up to 34°C (94°F) and lows dropping to around 17°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec818281807775737475787980
Data source: Temperature data for Rio Real 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 Real

In Rio Real in September, the precipitation amount is 50 mm (2.0 in) spread over a duration of 15 days.

September Precipitation Trends in Rio Real

The chart displays monthly precipitation patterns in Rio Real, 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 Real, September typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec313068859181654550345549
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rio Real

In Rio Real in September, humidity is 70%. With an average temperature of 24°C (76°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel a bit sticky and heavier, so travelers should stay hydrated and take regular breaks to enjoy the sights comfortably.

September Average Humidity in Rio Real

This chart illustrates the average monthly humidity levels in Rio Real, 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 Real is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%84%89%91%89%87%80%75%70%66%61%61%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rio Real

In Rio Real 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 Real.

Maximum UV Index Levels in Rio Real for September

The chart shows the monthly maximum UV Index (UVI) for Rio Real 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 Real typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141414131110101213141514
Data source: Rio Real 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 Real Compares to Other Months

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

This table compares monthly weather conditions in Rio Real, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)31 mm (1.2 inches)76%extreme
February Weather28°C (82°F)30 mm (1.2 inches)84%extreme
March Weather27°C (81°F)68 mm (2.7 inches)89%extreme
April Weather26°C (80°F)85 mm (3.3 inches)91%extreme
May Weather25°C (77°F)91 mm (3.6 inches)89%extreme
June Weather24°C (75°F)81 mm (3.2 inches)87%very high
July Weather23°C (73°F)65 mm (2.6 inches)80%very high
August Weather23°C (74°F)45 mm (1.8 inches)75%extreme
September Weather24°C (76°F)50 mm (2.0 inches)70%extreme
October Weather26°C (79°F)33 mm (1.3 inches)66%extreme
November Weather26°C (80°F)55 mm (2.2 inches)61%extreme
December Weather27°C (80°F)49 mm (1.9 inches)61%extreme

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