September Weather in Mirai, Brazil

Last updated: August 22, 2025

In September, the average temperature in Mirai, Brazil is a pleasant 23°C (73°F). Expect a range, with minimums dipping to 11°C (52°F) and highs soaring up to 36°C (97°F). During the month, you're likely to see about 38 mm (1.5 in) of precipitation over 5 days, contributing to an average humidity level of 63%. Prepare accordingly for a mix of warm days and refreshing rain!

September Temperature in Mirai

In September in Mirai, the average temperature is 23°C (73°F). Maximum temperatures can reach 36°C (97°F), while the minimum can be as low as 11°C (52°F). This temperature range makes it a great time for travelers to enjoy outdoor activities while also being prepared for cooler evenings.

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

The chart illustrates September temperature patterns in Mirai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mirai, September typically has an average temperature of 23°C (73°F), with highs reaching up to 36°C (97°F) and lows dropping to around 11°C (52°F).

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

September Precipitation in Mirai

In Mirai in September, the total precipitation amount is 38 mm (1.5 in) spread over a duration of 5 days.

September Precipitation Trends in Mirai

The chart displays monthly precipitation patterns in Mirai, 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 Mirai, September typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Mirai

In Mirai in September humidity is 63%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making outdoor excursions enjoyable yet slightly sticky, so travelers should dress lightly and stay hydrated to fully appreciate the sights.

September Average Humidity in Mirai

This chart illustrates the average monthly humidity levels in Mirai, 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 Mirai is approximately 63%, 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 Mirai

In Mirai 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 Mirai.

Maximum UV Index Levels in Mirai for September

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

Data source: Mirai 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 Mirai Compares to Other Months

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

This table compares monthly weather conditions in Mirai, 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 (79°F)	147 mm (5.8 inches)	83%	extreme
February Weather	25°C (77°F)	228 mm (9.0 inches)	85%	extreme
March Weather	25°C (77°F)	147 mm (5.8 inches)	87%	extreme
April Weather	23°C (74°F)	72 mm (2.8 inches)	86%	extreme
May Weather	21°C (70°F)	45 mm (1.8 inches)	82%	very high
June Weather	20°C (69°F)	14 mm (0.6 inches)	82%	high
July Weather	19°C (67°F)	14 mm (0.6 inches)	77%	very high
August Weather	20°C (68°F)	28 mm (1.1 inches)	72%	very high
September Weather	23°C (73°F)	38 mm (1.5 inches)	63%	extreme
October Weather	24°C (75°F)	112 mm (4.4 inches)	48%	extreme
November Weather	23°C (74°F)	219 mm (8.6 inches)	61%	extreme
December Weather	25°C (77°F)	208 mm (8.2 inches)	68%	extreme