September Weather in Roura, French Guiana

Last updated: August 23, 2025

In September, the average temperature in Roura, French Guiana is a pleasant 27°C (82°F). You'll experience a minimum of 23°C (73°F) and a maximum reaching 33°C (92°F). This month sees about 95 mm (3.7 in) of precipitation spread over 17 days, contributing to an average humidity of 79%. Perfect conditions for a tropical getaway!

September Temperature in Roura

In September in Roura, the average temperature is 27°C (82°F). Maximums can reach 33°C (92°F) and minimums can be as low as 23°C (73°F). This comfortable climate makes Roura an excellent destination for travelers seeking warm and pleasant weather.

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

The chart illustrates September temperature patterns in Roura, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roura, September typically has an average temperature of 27°C (82°F), with highs reaching up to 33°C (92°F) and lows dropping to around 23°C (73°F).

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

September Precipitation in Roura

In Roura in September, the total precipitation amount is 95 mm (3.7 in) spread over 17 days.

September Precipitation Trends in Roura

The chart displays monthly precipitation patterns in Roura, 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 Roura, September typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 17 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 Roura

In Roura in September humidity is 79%. With an average temperature of 27°C (82°F), this humidity feels like traveling through a warm, thick blanket, making every step feel heavier and more exhausting, while the air clings to your skin, reminding you to stay hydrated and take frequent breaks in the shade.

September Average Humidity in Roura

This chart illustrates the average monthly humidity levels in Roura, 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 Roura is approximately 79%, 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 Roura

In Roura in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Roura.

Maximum UV Index Levels in Roura for September

The chart shows the monthly maximum UV Index (UVI) for Roura 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 Roura typically reaches 13, which falls under the extreme exposure category.

Data source: Roura 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 Roura Compares to Other Months

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

This table compares monthly weather conditions in Roura, 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 (78°F)	229 mm (9.0 inches)	78%	extreme
February Weather	26°C (78°F)	204 mm (8.0 inches)	76%	extreme
March Weather	26°C (79°F)	190 mm (7.5 inches)	76%	extreme
April Weather	26°C (79°F)	384 mm (15.1 inches)	77%	extreme
May Weather	26°C (79°F)	576 mm (22.7 inches)	78%	extreme
June Weather	26°C (79°F)	443 mm (17.5 inches)	87%	extreme
July Weather	26°C (79°F)	327 mm (12.9 inches)	81%	extreme
August Weather	27°C (80°F)	143 mm (5.6 inches)	80%	extreme
September Weather	27°C (82°F)	95 mm (3.7 inches)	79%	extreme
October Weather	27°C (81°F)	99 mm (3.9 inches)	80%	extreme
November Weather	27°C (80°F)	239 mm (9.4 inches)	85%	extreme
December Weather	26°C (79°F)	367 mm (14.4 inches)	84%	extreme