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September Weather in Amarante do Maranhao, Brazil

Last updated: August 22, 2025

In Amarante do Maranhao, Brazil, the average temperature in September hovers around 28°C (83°F). Expect a comfortable range where the minimum can dip to 19°C (66°F) while the maximum might soar to 37°C (99°F). During this period, precipitation is light, averaging just 10 mm (0.4 in) over 1 day, and you'll find the average humidity at a pleasant 46%.

September Temperature in Amarante do Maranhao

In September in Amarante do Maranhao, the average temperature is 28°C (83°F), with maximums reaching 37°C (99°F) and minimums as low as 19°C (66°F). This warm climate makes it an ideal destination for travelers seeking sunshine and outdoor activities.

September Weather in Amarante do Maranhao: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Amarante do Maranhao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Amarante do Maranhao, September typically has an average temperature of 28°C (83°F), with highs reaching up to 37°C (99°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec787978798080808183838180
Data source: Temperature data for Amarante do Maranhao 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 Amarante do Maranhao

In Amarante do Maranhao in September, the precipitation amount is 10 mm (0.4 in) over the course of 1 day.

September Precipitation Trends in Amarante do Maranhao

The chart displays monthly precipitation patterns in Amarante do Maranhao, 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 Amarante do Maranhao, September typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec166231198151566331032101130
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Amarante do Maranhao

In Amarante do Maranhao in September, humidity is 46%. With an average temperature of 28°C (83°F), this humidity feels like a warm, enveloping blanket that makes outdoor activities enjoyable but may leave you feeling slightly sticky by midday, encouraging frequent breaks for hydration and a refreshing dip.

September Average Humidity in Amarante do Maranhao

This chart illustrates the average monthly humidity levels in Amarante do Maranhao, 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 Amarante do Maranhao 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 Amarante do Maranhao

In Amarante do Maranhao 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 Amarante do Maranhao.

Maximum UV Index Levels in Amarante do Maranhao for September

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

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

This table compares monthly weather conditions in Amarante do Maranhao, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)166 mm (6.6 inches)91%extreme
February Weather26°C (79°F)231 mm (9.1 inches)91%extreme
March Weather26°C (79°F)198 mm (7.8 inches)91%extreme
April Weather26°C (79°F)150 mm (5.9 inches)94%extreme
May Weather27°C (80°F)56 mm (2.2 inches)89%extreme
June Weather27°C (80°F)6 mm (0.2 inches)80%extreme
July Weather27°C (80°F)3 mm (0.1 inches)66%extreme
August Weather27°C (81°F)2 mm (0.1 inches)53%extreme
September Weather28°C (83°F)10 mm (0.4 inches)46%extreme
October Weather28°C (83°F)32 mm (1.3 inches)45%extreme
November Weather27°C (81°F)101 mm (4.0 inches)53%extreme
December Weather27°C (81°F)129 mm (5.1 inches)82%extreme

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