September Weather in Iguape, Brazil

Last updated: August 22, 2025

In September, the average temperature in Iguape, Brazil is a pleasant 21°C (69°F). Expect a minimum of 16°C (61°F) and occasional highs of 30°C (87°F). This month also brings about 62 mm (2.5 in) of precipitation over 13 days, contributing to an average humidity of 73%. Enjoy the mild temperatures and refreshing atmosphere!

September Temperature in Iguape

In September in Iguape, the average temperature is 21°C (69°F). The maximum can reach 30°C (87°F), while the minimum can drop to as low as 16°C (61°F). Overall, this makes it an ideal time for travelers seeking pleasant weather and comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Iguape, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iguape, September typically has an average temperature of 21°C (69°F), with highs reaching up to 30°C (87°F) and lows dropping to around 16°C (61°F).

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

September Precipitation in Iguape

In Iguape in September, the total precipitation amount is 62 mm (2.5 in) spread over the course of 13 days.

September Precipitation Trends in Iguape

The chart displays monthly precipitation patterns in Iguape, 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 Iguape, September typically receives around 62 mm (2.5 inches) of precipitation spread over approximately 13 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 Iguape

In Iguape in September, humidity is 73%. With an average temperature of 21°C (69°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat stifling and travel a bit more challenging, as the air is dense and can leave you feeling fatigued more quickly.

September Average Humidity in Iguape

This chart illustrates the average monthly humidity levels in Iguape, 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 Iguape 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 Iguape

In Iguape 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 Iguape.

Maximum UV Index Levels in Iguape for September

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

Data source: Iguape 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 Iguape Compares to Other Months

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

This table compares monthly weather conditions in Iguape, 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)	209 mm (8.2 inches)	89%	extreme
February Weather	26°C (79°F)	224 mm (8.8 inches)	86%	extreme
March Weather	26°C (78°F)	237 mm (9.3 inches)	87%	extreme
April Weather	24°C (75°F)	140 mm (5.5 inches)	85%	very high
May Weather	22°C (71°F)	127 mm (5.0 inches)	84%	high
June Weather	21°C (69°F)	125 mm (4.9 inches)	83%	high
July Weather	19°C (67°F)	49 mm (1.9 inches)	78%	high
August Weather	19°C (67°F)	88 mm (3.5 inches)	73%	very high
September Weather	21°C (69°F)	62 mm (2.5 inches)	73%	extreme
October Weather	22°C (72°F)	136 mm (5.3 inches)	71%	extreme
November Weather	23°C (73°F)	95 mm (3.7 inches)	83%	extreme
December Weather	25°C (76°F)	140 mm (5.5 inches)	87%	extreme