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September Weather in Sao Miguel, Brazil

Last updated: August 22, 2025

The average temperature in Sao Miguel, Brazil during September is a pleasant 26°C (78°F). You can expect a minimum of 23°C (73°F) and a maximum reaching 28°C (83°F). Precipitation levels are around 45 mm (1.8 in) over 18 days, contributing to an average humidity of 71%. Enjoy the comfortable climate while exploring all that this wonderful destination has to offer!

September Temperature in Sao Miguel

In September in Sao Miguel, the average temperature is 26°C (78°F), with maximums reaching 28°C (83°F) and minimums dipping as low as 23°C (73°F). This mild and pleasant climate makes it an ideal time for traveling and exploring all that Sao Miguel has to offer.

September Weather in Sao Miguel: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sao Miguel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Miguel, September typically has an average temperature of 26°C (78°F), with highs reaching up to 28°C (83°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec818181818079777778798081
Data source: Temperature data for Sao Miguel 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 Miguel

In Sao Miguel in September, the precipitation amount is 45 mm (1.8 in) over the course of 18 days.

September Precipitation Trends in Sao Miguel

The chart displays monthly precipitation patterns in Sao Miguel, 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 Miguel, September typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec721211892091841651956345363046
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sao Miguel

In Sao Miguel in September, humidity is 71%. With an average temperature of 26°C (78°F), this humidity feels like walking through a warm, thick blanket, making travel a bit more challenging but still refreshing.

September Average Humidity in Sao Miguel

This chart illustrates the average monthly humidity levels in Sao Miguel, 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 Miguel is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%86%85%87%82%75%73%71%70%71%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sao Miguel

In Sao Miguel 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 Sao Miguel.

Maximum UV Index Levels in Sao Miguel for September

The chart shows the monthly maximum UV Index (UVI) for Sao Miguel 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 Miguel typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141311111213131414
Data source: Sao Miguel 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 Miguel Compares to Other Months

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

This table compares monthly weather conditions in Sao Miguel, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)72 mm (2.8 inches)84%extreme
February Weather27°C (81°F)121 mm (4.8 inches)85%extreme
March Weather27°C (81°F)189 mm (7.4 inches)86%extreme
April Weather27°C (81°F)209 mm (8.2 inches)85%extreme
May Weather27°C (80°F)184 mm (7.2 inches)86%extreme
June Weather26°C (79°F)165 mm (6.5 inches)82%extreme
July Weather25°C (78°F)195 mm (7.7 inches)75%extreme
August Weather25°C (78°F)63 mm (2.5 inches)73%extreme
September Weather26°C (78°F)45 mm (1.8 inches)71%extreme
October Weather26°C (80°F)36 mm (1.4 inches)70%extreme
November Weather27°C (81°F)30 mm (1.2 inches)71%extreme
December Weather27°C (81°F)46 mm (1.8 inches)76%extreme

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