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September Weather in Montes Altos, Brazil

Last updated: August 22, 2025

In September, the average temperature in Montes Altos, Brazil is a warm 29°C (84°F). Expect a minimum of 19°C (67°F) and a peak of 38°C (101°F). With an average humidity of 46%, the climate is generally comfortable. Be prepared for some brief showers, as the area receives about 10 mm (0.4 in) of precipitation over the course of a day.

September Temperature in Montes Altos

In September in Montes Altos, the average temperature is 29°C (84°F), with maximums reaching up to 38°C (101°F) and minimums dropping as low as 19°C (67°F). This warm climate makes Montes Altos an ideal destination for travelers seeking sun and outdoor activities during this time of year.

September Weather in Montes Altos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Montes Altos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montes Altos, September typically has an average temperature of 29°C (84°F), with highs reaching up to 38°C (101°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec797979808181818284838180
Data source: Temperature data for Montes Altos 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 Montes Altos

In Montes Altos in September, the precipitation amount is 10 mm (0.4 in) over the course of 1 day.

September Precipitation Trends in Montes Altos

The chart displays monthly precipitation patterns in Montes Altos, 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 Montes Altos, September typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec192248221171596641043122146
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Montes Altos

In Montes Altos in September humidity is 46%. With an average temperature of 29°C (84°F), this humidity feels like a warm embrace, making traveling slightly uncomfortable, as the air feels thick and sticky, potentially leading to sweat and fatigue during outdoor activities.

September Average Humidity in Montes Altos

This chart illustrates the average monthly humidity levels in Montes Altos, 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 Montes Altos is approximately 46%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%91%94%89%80%66%53%46%45%53%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Montes Altos

In Montes Altos 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 Montes Altos.

Maximum UV Index Levels in Montes Altos for September

The chart shows the monthly maximum UV Index (UVI) for Montes Altos 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 Montes Altos typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151515151311111213131414
Data source: Montes Altos 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 Montes Altos Compares to Other Months

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

This table compares monthly weather conditions in Montes Altos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)192 mm (7.6 inches)91%extreme
February Weather26°C (79°F)248 mm (9.8 inches)91%extreme
March Weather26°C (79°F)220 mm (8.7 inches)91%extreme
April Weather26°C (80°F)171 mm (6.7 inches)94%extreme
May Weather27°C (81°F)59 mm (2.3 inches)89%extreme
June Weather27°C (81°F)6 mm (0.2 inches)80%extreme
July Weather27°C (81°F)6 mm (0.2 inches)66%extreme
August Weather28°C (83°F)4 mm (0.1 inches)53%extreme
September Weather29°C (84°F)10 mm (0.4 inches)46%extreme
October Weather28°C (83°F)43 mm (1.7 inches)45%extreme
November Weather27°C (81°F)122 mm (4.8 inches)53%extreme
December Weather27°C (81°F)146 mm (5.7 inches)82%extreme

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