September Weather in Forquilhinha, Brazil

Last updated: August 22, 2025

The average temperature in Forquilhinha, Brazil during September is a mild 18°C (65°F). However, be prepared for a range of temperatures, as it can dip as low as 7°C (45°F) and soar up to 35°C (95°F). Expect some rain, with a total precipitation amount of 146 mm (5.7 in) spread over 14 days, and be ready for a humid experience with an average humidity of 86%.

September Temperature in Forquilhinha

In September in Forquilhinha, the average temperature is 18°C (65°F). Maximums can reach 35°C (95°F), while minimums can be as low as 7°C (45°F). It's a great time to explore Forquilhinha, so pack accordingly for both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Forquilhinha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Forquilhinha, September typically has an average temperature of 18°C (65°F), with highs reaching up to 35°C (95°F) and lows dropping to around 7°C (45°F).

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

September Precipitation in Forquilhinha

In Forquilhinha in September, the precipitation amount is 146 mm (5.7 in) over a span of 14 days.

September Precipitation Trends in Forquilhinha

The chart displays monthly precipitation patterns in Forquilhinha, 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 Forquilhinha, September typically receives around 146 mm (5.7 inches) of precipitation spread over approximately 14 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 Forquilhinha

In Forquilhinha in September humidity is 86%. With an average temperature of 18°C (65°F), this humidity feels like you’re wrapped in a warm, heavy blanket, making outdoor activities feel quite muggy and sticky for traveling.

September Average Humidity in Forquilhinha

This chart illustrates the average monthly humidity levels in Forquilhinha, 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 Forquilhinha is approximately 86%, 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 Forquilhinha

In Forquilhinha in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Forquilhinha.

Maximum UV Index Levels in Forquilhinha for September

The chart shows the monthly maximum UV Index (UVI) for Forquilhinha 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 Forquilhinha typically reaches 10, which falls under the very high exposure category.

Data source: Forquilhinha 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 Forquilhinha Compares to Other Months

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

This table compares monthly weather conditions in Forquilhinha, 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)	220 mm (8.7 inches)	85%	extreme
February Weather	24°C (75°F)	171 mm (6.7 inches)	84%	extreme
March Weather	23°C (73°F)	167 mm (6.6 inches)	84%	extreme
April Weather	21°C (69°F)	98 mm (3.9 inches)	83%	very high
May Weather	18°C (64°F)	137 mm (5.4 inches)	86%	high
June Weather	16°C (61°F)	128 mm (5.0 inches)	82%	moderate
July Weather	15°C (59°F)	79 mm (3.1 inches)	80%	moderate
August Weather	16°C (61°F)	55 mm (2.2 inches)	81%	high
September Weather	18°C (65°F)	146 mm (5.7 inches)	86%	very high
October Weather	20°C (68°F)	140 mm (5.5 inches)	87%	extreme
November Weather	21°C (70°F)	152 mm (6.0 inches)	87%	extreme
December Weather	23°C (73°F)	177 mm (7.0 inches)	88%	extreme