September Weather in Registro, Brazil

Last updated: August 22, 2025

In September, the average temperature in Registro, Brazil hovers around 21°C (71°F). Expect a range of temperatures, with a minimum of 12°C (53°F) and a maximum soaring to 37°C (100°F). Precipitation averages 52 mm (2.0 in) spread across 11 days, contributing to an average humidity of 73%. Perfect for planning your adventures!

September Temperature in Registro

In September in Registro, the average temperature is 21°C (71°F). Maximums can reach 37°C (100°F), while minimums can be as low as 12°C (53°F). This climate makes it an ideal time for travelers to enjoy warm days while having the option for cooler evenings.

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

The chart illustrates September temperature patterns in Registro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Registro, September typically has an average temperature of 21°C (71°F), with highs reaching up to 37°C (100°F) and lows dropping to around 12°C (53°F).

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

September Precipitation in Registro

In Registro in September, the total precipitation amount is 52 mm (2.0 in), occurring over the course of 11 days.

September Precipitation Trends in Registro

The chart displays monthly precipitation patterns in Registro, 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 Registro, September typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 11 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 Registro

In Registro in September humidity is 73%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities a bit uncomfortable, but with proper hydration and breaks in the shade, it’s still manageable for traveling.

September Average Humidity in Registro

This chart illustrates the average monthly humidity levels in Registro, 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 Registro is approximately 73%, 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 Registro

In Registro in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Registro.

Maximum UV Index Levels in Registro for September

The chart shows the monthly maximum UV Index (UVI) for Registro 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 Registro typically reaches 11, which falls under the extreme exposure category.

Data source: Registro 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 Registro Compares to Other Months

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

This table compares monthly weather conditions in Registro, 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)	208 mm (8.2 inches)	89%	extreme
February Weather	26°C (79°F)	201 mm (7.9 inches)	86%	extreme
March Weather	25°C (78°F)	191 mm (7.5 inches)	87%	extreme
April Weather	23°C (74°F)	108 mm (4.2 inches)	85%	very high
May Weather	21°C (70°F)	91 mm (3.6 inches)	84%	high
June Weather	20°C (68°F)	76 mm (3.0 inches)	83%	high
July Weather	18°C (65°F)	38 mm (1.5 inches)	78%	high
August Weather	19°C (66°F)	69 mm (2.7 inches)	73%	very high
September Weather	21°C (71°F)	52 mm (2.0 inches)	73%	extreme
October Weather	23°C (73°F)	118 mm (4.6 inches)	71%	extreme
November Weather	23°C (74°F)	88 mm (3.5 inches)	83%	extreme
December Weather	25°C (78°F)	124 mm (4.9 inches)	87%	extreme