September Weather in Monte Siao, Brazil

Last updated: August 22, 2025

The average temperature in Monte Siao, Brazil during September is a pleasant 22°C (72°F). However, temperatures can vary significantly, with minimums dipping to 9°C (49°F) and maximums soaring to 35°C (95°F). Expect about 38 mm (1.5 in) of precipitation over 5 days, coupled with an average humidity of 58%, making for a diverse and engaging climate experience!

September Temperature in Monte Siao

In September in Monte Siao, the average temperature is 22°C (72°F), with maximums reaching up to 35°C (95°F) and minimums dropping to as low as 9°C (49°F). This climate makes Monte Siao an ideal destination for travelers seeking pleasant weather and diverse experiences.

September Weather in Monte Siao: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Monte Siao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monte Siao, September typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 9°C (49°F).

Data source: Temperature data for Monte Siao generated using information from the Copernicus Climate Change Service.

September Precipitation in Monte Siao

In Monte Siao in September, the total precipitation amount is 38 mm (1.5 in) spread over a duration of 5 days.

September Precipitation Trends in Monte Siao

The chart displays monthly precipitation patterns in Monte Siao, 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 Monte Siao, September typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Monte Siao

In Monte Siao in September, humidity is 58%. With an average temperature of 22°C (72°F), this humidity feels like a warm, slightly muggy embrace, making it ideal for leisurely strolls but a bit uncomfortable for strenuous outdoor activities.

September Average Humidity in Monte Siao

This chart illustrates the average monthly humidity levels in Monte Siao, 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 Monte Siao is approximately 58%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Monte Siao

In Monte Siao 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 Monte Siao.

Maximum UV Index Levels in Monte Siao for September

The chart shows the monthly maximum UV Index (UVI) for Monte Siao 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 Monte Siao typically reaches 12, which falls under the extreme exposure category.

Data source: Monte Siao 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 Monte Siao Compares to Other Months

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

This table compares monthly weather conditions in Monte Siao, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	175 mm (6.9 inches)	88%	extreme
February Weather	23°C (73°F)	153 mm (6.0 inches)	88%	extreme
March Weather	22°C (73°F)	107 mm (4.2 inches)	87%	extreme
April Weather	21°C (69°F)	43 mm (1.7 inches)	84%	extreme
May Weather	18°C (65°F)	39 mm (1.5 inches)	79%	very high
June Weather	18°C (64°F)	17 mm (0.6 inches)	77%	high
July Weather	17°C (62°F)	10 mm (0.4 inches)	72%	very high
August Weather	18°C (65°F)	36 mm (1.4 inches)	65%	very high
September Weather	22°C (72°F)	38 mm (1.5 inches)	58%	extreme
October Weather	22°C (72°F)	117 mm (4.6 inches)	50%	extreme
November Weather	22°C (72°F)	126 mm (5.0 inches)	75%	extreme
December Weather	23°C (73°F)	163 mm (6.4 inches)	80%	extreme