September Weather in Guapo, Brazil

Last updated: August 22, 2025

In September, the average temperature in Guapo, Brazil is a warm 27°C (81°F). Expect a range from a cool 13°C (56°F) at night to a scorching 38°C (102°F) during the day. While you enjoy the sunshine, keep in mind that there is a modest 8 mm (0.3 in) of precipitation over just 1 day throughout the month, with average humidity resting at a comfortable 36%.

September Temperature in Guapo

In September in Guapo, the average temperature is 27°C (81°F), with maximums reaching 38°C (102°F) and minimums dropping as low as 13°C (56°F). This range makes it a great time for travelers to enjoy mild to warm weather while exploring the area.

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

The chart illustrates September temperature patterns in Guapo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Guapo, September typically has an average temperature of 27°C (81°F), with highs reaching up to 38°C (102°F) and lows dropping to around 13°C (56°F).

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

September Precipitation in Guapo

In Guapo in September, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

September Precipitation Trends in Guapo

The chart displays monthly precipitation patterns in Guapo, 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 Guapo, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 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 Guapo

In Guapo in September, humidity is 36%. With an average temperature of 27°C (81°F), this humidity feels like a comfortable and pleasant atmosphere for traveling, making it easy to explore the sights without feeling overly sticky or fatigued.

September Average Humidity in Guapo

This chart illustrates the average monthly humidity levels in Guapo, 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 Guapo is approximately 36%, 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 Guapo

In Guapo 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 Guapo.

Maximum UV Index Levels in Guapo for September

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

Data source: Guapo 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 Guapo Compares to Other Months

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

This table compares monthly weather conditions in Guapo, 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)	131 mm (5.2 inches)	85%	extreme
February Weather	24°C (76°F)	215 mm (8.5 inches)	89%	extreme
March Weather	24°C (76°F)	125 mm (4.9 inches)	89%	extreme
April Weather	24°C (75°F)	82 mm (3.2 inches)	80%	extreme
May Weather	22°C (72°F)	11 mm (0.4 inches)	67%	very high
June Weather	22°C (72°F)	1 mm (0.0 inches)	62%	very high
July Weather	21°C (70°F)	0 mm (0.0 inches)	56%	very high
August Weather	24°C (75°F)	2 mm (0.1 inches)	47%	extreme
September Weather	27°C (81°F)	8 mm (0.3 inches)	36%	extreme
October Weather	26°C (80°F)	104 mm (4.1 inches)	28%	extreme
November Weather	24°C (76°F)	201 mm (7.9 inches)	58%	extreme
December Weather	24°C (76°F)	198 mm (7.8 inches)	76%	extreme