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September Weather in Major Isidoro, Brazil

Last updated: August 22, 2025

In Major Isidoro, Brazil, the average temperature in September is a pleasant 24°C (76°F). During this time, temperatures can dip as low as 17°C (63°F) and peak at a sizzling 36°C (97°F). Expect some rain, with an average precipitation of 31 mm (1.2 in) spread across 11 days. The air is quite humid, with an average humidity of 79%, making it essential to stay hydrated!

September Temperature in Major Isidoro

In September in Major Isidoro, the average temperature is 24°C (76°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop to as low as 17°C (63°F). It's an ideal time to explore the outdoors, so pack appropriately for both warm days and cooler evenings.

September Weather in Major Isidoro: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Major Isidoro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Major Isidoro, September typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (97°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec828382807775737476808182
Data source: Temperature data for Major Isidoro 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 Major Isidoro

In Major Isidoro in September, the precipitation amount is 31 mm (1.2 in) spread over a period of 11 days.

September Precipitation Trends in Major Isidoro

The chart displays monthly precipitation patterns in Major Isidoro, 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 Major Isidoro, September typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec202574687171724331142518
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Major Isidoro

In Major Isidoro in September, humidity is 79%. With an average temperature of 24°C (76°F), this humidity feels like a thick blanket wrapped around you, making traveling somewhat uncomfortable and sticky, as you navigate through the warmth while constantly seeking shade and hydration.

September Average Humidity in Major Isidoro

This chart illustrates the average monthly humidity levels in Major Isidoro, 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 Major Isidoro is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%87%88%89%90%89%86%84%79%74%71%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Major Isidoro

In Major Isidoro 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 Major Isidoro.

Maximum UV Index Levels in Major Isidoro for September

The chart shows the monthly maximum UV Index (UVI) for Major Isidoro 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 Major Isidoro typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141414141210101213141514
Data source: Major Isidoro 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 Major Isidoro Compares to Other Months

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

This table compares monthly weather conditions in Major Isidoro, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)20 mm (0.8 inches)84%extreme
February Weather28°C (83°F)25 mm (1.0 inches)87%extreme
March Weather28°C (82°F)74 mm (2.9 inches)88%extreme
April Weather27°C (80°F)67 mm (2.7 inches)89%extreme
May Weather25°C (78°F)71 mm (2.8 inches)90%extreme
June Weather24°C (75°F)71 mm (2.8 inches)89%very high
July Weather23°C (73°F)72 mm (2.8 inches)86%very high
August Weather23°C (74°F)43 mm (1.7 inches)84%extreme
September Weather24°C (76°F)31 mm (1.2 inches)79%extreme
October Weather27°C (80°F)14 mm (0.5 inches)74%extreme
November Weather27°C (82°F)25 mm (1.0 inches)71%extreme
December Weather28°C (82°F)17 mm (0.7 inches)72%extreme

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