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September Weather in Porto Murtinho, Brazil

Last updated: August 22, 2025

In September, the average temperature in Porto Murtinho, Brazil is a warm 26°C (79°F), with a minimum of 10°C (50°F) and soaring up to a maximum of 41°C (106°F). Expect about 53 mm (2.1 in) of precipitation over 6 days, and enjoy the relatively low average humidity of 37%. Whether you're soaking up the sun or seeking cooler moments, this month offers a mix of warmth and refreshing rain.

September Temperature in Porto Murtinho

In September in Porto Murtinho, the average temperature is 26°C (79°F). Maximum temperatures can reach 41°C (106°F), while the minimum can drop to as low as 10°C (50°F). This diverse temperature range makes Porto Murtinho an exciting destination for travelers looking to experience both warmth and cooler evenings.

September Weather in Porto Murtinho: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Porto Murtinho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porto Murtinho, September typically has an average temperature of 26°C (79°F), with highs reaching up to 41°C (106°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec848382787370697379828284
Data source: Temperature data for Porto Murtinho 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 Porto Murtinho

In Porto Murtinho in September, the precipitation amount is 53 mm (2.1 in) over a span of 6 days.

September Precipitation Trends in Porto Murtinho

The chart displays monthly precipitation patterns in Porto Murtinho, 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 Porto Murtinho, September typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec127142149829357137353123131171
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Porto Murtinho

In Porto Murtinho in September, humidity is 37%. With an average temperature of 26°C (79°F), this humidity feels like a comfortable and pleasant environment for traveling, allowing you to explore without feeling overly sticky or fatigued.

September Average Humidity in Porto Murtinho

This chart illustrates the average monthly humidity levels in Porto Murtinho, 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 Porto Murtinho is approximately 37%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%82%85%84%79%64%50%37%37%41%70%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Porto Murtinho

In Porto Murtinho in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Porto Murtinho.

Maximum UV Index Levels in Porto Murtinho for September

The chart shows the monthly maximum UV Index (UVI) for Porto Murtinho 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 Porto Murtinho typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151311878911131415
Data source: Porto Murtinho 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 Porto Murtinho Compares to Other Months

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

This table compares monthly weather conditions in Porto Murtinho, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather29°C (85°F)127 mm (5.0 inches)86%extreme
February Weather28°C (83°F)142 mm (5.6 inches)82%extreme
March Weather28°C (82°F)149 mm (5.9 inches)85%extreme
April Weather26°C (79°F)81 mm (3.2 inches)84%extreme
May Weather23°C (73°F)93 mm (3.6 inches)79%very high
June Weather21°C (70°F)57 mm (2.2 inches)63%high
July Weather21°C (70°F)13 mm (0.5 inches)50%very high
August Weather23°C (73°F)72 mm (2.9 inches)37%very high
September Weather26°C (79°F)53 mm (2.1 inches)37%extreme
October Weather28°C (82°F)123 mm (4.9 inches)41%extreme
November Weather28°C (83°F)131 mm (5.2 inches)70%extreme
December Weather29°C (84°F)171 mm (6.7 inches)84%extreme

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