September Weather in Barcelos, Brazil

Last updated: August 22, 2025

In Barcelos, Brazil, the average temperature in September hovers around 27°C (81°F). Expect a minimum of 22°C (72°F) and a maximum of 34°C (94°F). This month experiences approximately 197 mm (7.8 in) of precipitation over 22 days, with the air maintaining an average humidity of 53%.

September Temperature in Barcelos

In September in Barcelos, the average temperature is 27°C (81°F), with maximums reaching 34°C (94°F) and minimums dipping to 22°C (72°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Barcelos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Barcelos, September typically has an average temperature of 27°C (81°F), with highs reaching up to 34°C (94°F) and lows dropping to around 22°C (72°F).

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

September Precipitation in Barcelos

In Barcelos in September, the total precipitation amount is 197 mm (7.8 in) over the course of 22 days.

September Precipitation Trends in Barcelos

The chart displays monthly precipitation patterns in Barcelos, 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 Barcelos, September typically receives around 197 mm (7.8 inches) of precipitation spread over approximately 22 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 Barcelos

In Barcelos in September, humidity is 53%. With an average temperature of 27°C (81°F), this humidity feels like a warm embrace, creating a sticky yet invigorating atmosphere perfect for leisurely strolls and outdoor adventures.

September Average Humidity in Barcelos

This chart illustrates the average monthly humidity levels in Barcelos, 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 Barcelos is approximately 53%, 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 Barcelos

In Barcelos 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 Barcelos.

Maximum UV Index Levels in Barcelos for September

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

Data source: Barcelos 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 Barcelos Compares to Other Months

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

This table compares monthly weather conditions in Barcelos, 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)	183 mm (7.2 inches)	71%	extreme
February Weather	27°C (81°F)	120 mm (4.7 inches)	52%	extreme
March Weather	27°C (80°F)	266 mm (10.5 inches)	52%	extreme
April Weather	26°C (79°F)	353 mm (13.9 inches)	71%	extreme
May Weather	26°C (79°F)	430 mm (16.9 inches)	88%	extreme
June Weather	26°C (79°F)	258 mm (10.2 inches)	86%	extreme
July Weather	26°C (79°F)	219 mm (8.6 inches)	77%	extreme
August Weather	27°C (81°F)	132 mm (5.2 inches)	65%	extreme
September Weather	27°C (81°F)	197 mm (7.8 inches)	53%	extreme
October Weather	27°C (81°F)	172 mm (6.8 inches)	32%	extreme
November Weather	27°C (81°F)	243 mm (9.5 inches)	43%	extreme
December Weather	26°C (80°F)	257 mm (10.1 inches)	79%	extreme