September Weather in Monte Alegre, Brazil

Last updated: August 22, 2025

In September, the average temperature in Monte Alegre, Brazil hovers around 25°C (77°F), making it a pleasant time to explore. Temperatures may range from a comfortable 18°C (65°F) to a warm 34°C (93°F), while precipitation levels are minimal, with just 5 mm (0.2 in) occurring over 0 days. With an average humidity of 72%, the climate is ideal for outdoor activities and enjoying the vibrant surroundings.

September Temperature in Monte Alegre

In September in Monte Alegre, the average temperature is 25°C (77°F). Maximums can reach 34°C (93°F), and minimums can be as low as 18°C (65°F). It's a perfect time for travelers to enjoy pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Monte Alegre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monte Alegre, September typically has an average temperature of 25°C (77°F), with highs reaching up to 34°C (93°F) and lows dropping to around 18°C (65°F).

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

September Precipitation in Monte Alegre

In Monte Alegre in September, the precipitation amount is 5 mm (0.2 in) during a span of 0 days.

September Precipitation Trends in Monte Alegre

The chart displays monthly precipitation patterns in Monte Alegre, 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 Alegre, September typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 0 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 Alegre

In Monte Alegre in September, humidity is 72%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace that clings to your skin, making outdoor exploration both vibrant and a bit taxing as you sweat slightly more and seek shade often while enjoying the scenery.

September Average Humidity in Monte Alegre

This chart illustrates the average monthly humidity levels in Monte Alegre, 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 Alegre is approximately 72%, 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 Alegre

In Monte Alegre in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Monte Alegre, you can check here.

Maximum UV Index Levels in Monte Alegre for September

The chart shows the monthly maximum UV Index (UVI) for Monte Alegre 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 Alegre typically reaches 14, which falls under the extreme exposure category.

Data source: Monte Alegre 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 Alegre Compares to Other Months

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

This table compares monthly weather conditions in Monte Alegre, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (80°F)	38 mm (1.5 inches)	86%	extreme
February Weather	26°C (80°F)	96 mm (3.8 inches)	89%	extreme
March Weather	26°C (79°F)	115 mm (4.5 inches)	89%	extreme
April Weather	26°C (78°F)	79 mm (3.1 inches)	89%	extreme
May Weather	25°C (77°F)	61 mm (2.4 inches)	90%	extreme
June Weather	24°C (76°F)	28 mm (1.1 inches)	86%	extreme
July Weather	24°C (75°F)	43 mm (1.7 inches)	80%	extreme
August Weather	24°C (76°F)	5 mm (0.2 inches)	77%	extreme
September Weather	25°C (77°F)	5 mm (0.2 inches)	72%	extreme
October Weather	26°C (79°F)	6 mm (0.2 inches)	68%	extreme
November Weather	27°C (80°F)	7 mm (0.3 inches)	66%	extreme
December Weather	27°C (80°F)	15 mm (0.6 inches)	70%	extreme