September Weather in Arcos, Brazil

Last updated: August 22, 2025

In September, the average temperature in Arcos, Brazil is a pleasant 24°C (75°F). Expect a range with a minimum of 12°C (53°F) and highs reaching up to 37°C (99°F). While you enjoy the warm climate, be prepared for around 29 mm (1.2 in) of precipitation over 3 days. With an average humidity of 49%, it’s the perfect time to experience the wonders of this vibrant destination!

September Temperature in Arcos

In September in Arcos, the average temperature is 24°C (75°F). Maximum temperatures can reach 37°C (99°F), while the minimum can drop to as low as 12°C (53°F). This makes Arcos an ideal destination for travelers looking to enjoy warm weather with a pleasant range of temperatures.

September Weather in Arcos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Arcos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arcos, September typically has an average temperature of 24°C (75°F), with highs reaching up to 37°C (99°F) and lows dropping to around 12°C (53°F).

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

September Precipitation in Arcos

In Arcos in September, the total precipitation amount is 29 mm (1.2 in) over a duration of 3 days.

September Precipitation Trends in Arcos

The chart displays monthly precipitation patterns in Arcos, 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 Arcos, September typically receives around 29 mm (1.2 inches) of precipitation spread over approximately 3 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 Arcos

In Arcos in September, humidity is 49%. With an average temperature of 24°C (75°F), this humidity feels like a refreshing embrace, making it comfortable for traveling, allowing you to explore without feeling overheated or weighed down by the heat.

September Average Humidity in Arcos

This chart illustrates the average monthly humidity levels in Arcos, 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 Arcos is approximately 49%, 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 Arcos

In Arcos 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 Arcos.

Maximum UV Index Levels in Arcos for September

The chart shows the monthly maximum UV Index (UVI) for Arcos 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 Arcos typically reaches 13, which falls under the extreme exposure category.

Data source: Arcos 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 Arcos Compares to Other Months

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

This table compares monthly weather conditions in Arcos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (76°F)	130 mm (5.1 inches)	85%	extreme
February Weather	23°C (74°F)	177 mm (7.0 inches)	87%	extreme
March Weather	24°C (75°F)	119 mm (4.7 inches)	87%	extreme
April Weather	22°C (73°F)	41 mm (1.6 inches)	80%	extreme
May Weather	20°C (68°F)	26 mm (1.0 inches)	74%	very high
June Weather	20°C (67°F)	8 mm (0.3 inches)	72%	high
July Weather	18°C (65°F)	2 mm (0.1 inches)	67%	very high
August Weather	20°C (69°F)	9 mm (0.4 inches)	58%	extreme
September Weather	24°C (75°F)	29 mm (1.2 inches)	49%	extreme
October Weather	24°C (76°F)	108 mm (4.2 inches)	36%	extreme
November Weather	23°C (74°F)	192 mm (7.5 inches)	65%	extreme
December Weather	23°C (74°F)	207 mm (8.1 inches)	72%	extreme