September Weather in Itaguai, Brazil

Last updated: August 22, 2025

The average temperature in Itaguai, Brazil during September is a pleasant 23°C (73°F). However, temperatures can vary significantly, ranging from a cool 14°C (58°F) to a sweltering 37°C (99°F). Expect some moisture in the air, with an average precipitation of 63 mm (2.5 in) spread over 9 days and an average humidity of 68%.

September Temperature in Itaguai

In September in Itaguai, the average temperature is 23°C (73°F). The maximum can reach 37°C (99°F), while the minimum can drop to as low as 14°C (58°F). This pleasant weather makes Itaguai an ideal destination for exploring outdoor activities and enjoying its natural beauty.

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

The chart illustrates September temperature patterns in Itaguai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Itaguai, September typically has an average temperature of 23°C (73°F), with highs reaching up to 37°C (99°F) and lows dropping to around 14°C (58°F).

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

September Precipitation in Itaguai

In Itaguai in September, the total precipitation amount is 63 mm (2.5 in) spread over a duration of 9 days.

September Precipitation Trends in Itaguai

The chart displays monthly precipitation patterns in Itaguai, 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 Itaguai, September typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 9 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 Itaguai

In Itaguai in September humidity is 68%. With an average temperature of 23°C (73°F), this humidity feels like a soft blanket wrapping around you, making every step outside feel a bit heavier, but offering a warm embrace that encourages leisurely exploration and a relaxed pace for travel.

September Average Humidity in Itaguai

This chart illustrates the average monthly humidity levels in Itaguai, 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 Itaguai is approximately 68%, 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 Itaguai

In Itaguai 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 Itaguai.

Maximum UV Index Levels in Itaguai for September

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

Data source: Itaguai 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 Itaguai Compares to Other Months

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

This table compares monthly weather conditions in Itaguai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	202 mm (7.9 inches)	85%	extreme
February Weather	26°C (78°F)	230 mm (9.0 inches)	85%	extreme
March Weather	26°C (78°F)	195 mm (7.7 inches)	86%	extreme
April Weather	24°C (75°F)	89 mm (3.5 inches)	83%	very high
May Weather	21°C (71°F)	75 mm (3.0 inches)	81%	high
June Weather	21°C (70°F)	38 mm (1.5 inches)	80%	high
July Weather	20°C (68°F)	32 mm (1.3 inches)	76%	high
August Weather	20°C (68°F)	62 mm (2.4 inches)	73%	very high
September Weather	23°C (73°F)	63 mm (2.5 inches)	68%	extreme
October Weather	23°C (74°F)	121 mm (4.8 inches)	61%	extreme
November Weather	23°C (74°F)	191 mm (7.5 inches)	72%	extreme
December Weather	25°C (77°F)	208 mm (8.2 inches)	75%	extreme