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September Weather in Sao Luis de Montes Belos, Brazil

Last updated: August 22, 2025

In September, the average temperature in Sao Luis de Montes Belos, Brazil is a warm 28°C (83°F). While you can expect a comfortable minimum of 15°C (60°F), be prepared for the potential peak at a stifling 39°C (103°F). Rainfall during this period is minimal, with an average precipitation of just 7 mm (0.3 in) spread over one day. You'll also enjoy low humidity levels, averaging around 33%, making it a pleasant time to visit!

September Temperature in Sao Luis de Montes Belos

In September in Sao Luis de Montes Belos, the average temperature is 28°C (83°F), with maximums reaching 39°C (103°F) and minimums dropping as low as 15°C (60°F). Be prepared for warm days and cooler nights when planning your travel.

September Weather in Sao Luis de Montes Belos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sao Luis de Montes Belos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Luis de Montes Belos, September typically has an average temperature of 28°C (83°F), with highs reaching up to 39°C (103°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec777677767373727782817777
Data source: Temperature data for Sao Luis de Montes Belos 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 Sao Luis de Montes Belos

In Sao Luis de Montes Belos in September, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

September Precipitation Trends in Sao Luis de Montes Belos

The chart displays monthly precipitation patterns in Sao Luis de Montes Belos, 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 Sao Luis de Montes Belos, September typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec14419814892110017103176208
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sao Luis de Montes Belos

In Sao Luis de Montes Belos in September humidity is 33%. With an average temperature of 28°C (83°F), this humidity feels like a comfortable warmth that makes outdoor adventures enjoyable, allowing for pleasant strolls and exploration without feeling weighed down by moisture in the air.

September Average Humidity in Sao Luis de Montes Belos

This chart illustrates the average monthly humidity levels in Sao Luis de Montes Belos, 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 Sao Luis de Montes Belos is approximately 33%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%89%89%83%68%60%53%43%33%29%61%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sao Luis de Montes Belos

In Sao Luis de Montes Belos 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 Sao Luis de Montes Belos.

Maximum UV Index Levels in Sao Luis de Montes Belos for September

The chart shows the monthly maximum UV Index (UVI) for Sao Luis de Montes Belos 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 Sao Luis de Montes Belos typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1616141210891112151616
Data source: Sao Luis de Montes Belos 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 Sao Luis de Montes Belos Compares to Other Months

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

This table compares monthly weather conditions in Sao Luis de Montes Belos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)144 mm (5.7 inches)87%extreme
February Weather25°C (77°F)198 mm (7.8 inches)89%extreme
March Weather25°C (77°F)148 mm (5.8 inches)89%extreme
April Weather24°C (76°F)92 mm (3.6 inches)83%extreme
May Weather23°C (74°F)11 mm (0.4 inches)68%very high
June Weather23°C (73°F)0 mm (0.0 inches)60%very high
July Weather22°C (72°F)0 mm (0.0 inches)53%very high
August Weather25°C (77°F)1 mm (0.0 inches)43%extreme
September Weather28°C (83°F)7 mm (0.3 inches)33%extreme
October Weather27°C (81°F)103 mm (4.1 inches)28%extreme
November Weather25°C (77°F)176 mm (6.9 inches)61%extreme
December Weather25°C (77°F)208 mm (8.2 inches)84%extreme

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