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September Weather in Vilhena, Brazil

Last updated: August 22, 2025

In September, the average temperature in Vilhena, Brazil is a warm 27°C (80°F), making it a great time to enjoy the outdoors. However, temperatures can range from a cool 14°C (57°F) to a scorching 37°C (98°F). Expect about 62 mm (2.5 in) of precipitation over 10 days, contributing to an average humidity of 28%. This pleasant climate invites both relaxation and adventure!

September Temperature in Vilhena

In September in Vilhena, the average temperature is 27°C (80°F). The maximum can reach 37°C (98°F), and the minimum can be as low as 14°C (57°F). This makes Vilhena an ideal destination for travelers seeking warm weather and a variety of outdoor activities.

September Weather in Vilhena: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Vilhena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vilhena, September typically has an average temperature of 27°C (80°F), with highs reaching up to 37°C (98°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec757575757474747780787675
Data source: Temperature data for Vilhena 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 Vilhena

In Vilhena in September, the total precipitation amount is 62 mm (2.5 in) over the course of 10 days.

September Precipitation Trends in Vilhena

The chart displays monthly precipitation patterns in Vilhena, 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 Vilhena, September typically receives around 62 mm (2.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec218299239149481011962154256298
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Vilhena

In Vilhena in September humidity is 28%. With an average temperature of 27°C (80°F), this humidity feels like a comfortable warmth that enhances the overall travel experience, making it ideal for outdoor explorations and leisurely strolls.

September Average Humidity in Vilhena

This chart illustrates the average monthly humidity levels in Vilhena, 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 Vilhena is approximately 28%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%89%88%83%64%46%36%28%32%67%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Vilhena

In Vilhena in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Vilhena.

Maximum UV Index Levels in Vilhena for September

The chart shows the monthly maximum UV Index (UVI) for Vilhena 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 Vilhena typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161616151110101212141516
Data source: Vilhena 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 Vilhena Compares to Other Months

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

This table compares monthly weather conditions in Vilhena, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)218 mm (8.6 inches)88%extreme
February Weather24°C (75°F)299 mm (11.8 inches)87%extreme
March Weather24°C (76°F)239 mm (9.4 inches)89%extreme
April Weather24°C (76°F)149 mm (5.9 inches)88%extreme
May Weather24°C (75°F)48 mm (1.9 inches)83%extreme
June Weather23°C (74°F)10 mm (0.4 inches)64%very high
July Weather24°C (75°F)1 mm (0.0 inches)46%very high
August Weather25°C (78°F)19 mm (0.7 inches)36%extreme
September Weather27°C (80°F)62 mm (2.5 inches)28%extreme
October Weather25°C (78°F)154 mm (6.1 inches)32%extreme
November Weather24°C (76°F)256 mm (10.1 inches)67%extreme
December Weather24°C (76°F)298 mm (11.7 inches)86%extreme

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