September Weather in Coyah, Guinea

Last updated: August 23, 2025

In Coyah, Guinea, the average temperature in September is a warm 26°C (79°F). Expect a minimum of 22°C (72°F) and a maximum of 33°C (92°F), making it a perfect time for outdoor activities. However, be prepared for some rain; with 475 mm (18.7 in) of precipitation over 28 days, you'll want to pack an umbrella! Additionally, the average humidity hovers around 89%, adding to the tropical ambiance of the season.

September Temperature in Coyah

In September in Coyah, the average temperature is 26°C (79°F). The maximum can reach up to 33°C (92°F), while the minimum can drop as low as 22°C (72°F). This mild and pleasant weather makes Coyah an ideal destination for travelers looking to enjoy comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Coyah, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coyah, September typically has an average temperature of 26°C (79°F), with highs reaching up to 33°C (92°F) and lows dropping to around 22°C (72°F).

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

September Precipitation in Coyah

In Coyah in September, the precipitation amount is 475 mm (18.7 in) over the course of 28 days.

September Precipitation Trends in Coyah

The chart displays monthly precipitation patterns in Coyah, 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 Coyah, September typically receives around 475 mm (18.7 inches) of precipitation spread over approximately 28 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 Coyah

In Coyah in September, humidity is 89%. With an average temperature of 26°C (79°F), this humidity feels like walking through a warm, thick blanket, making it feel much hotter and more exhausting for traveling, as every step seems to weigh you down in the muggy air.

September Average Humidity in Coyah

This chart illustrates the average monthly humidity levels in Coyah, 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 Coyah is approximately 89%, 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 Coyah

In Coyah in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Coyah, you can check here.

Maximum UV Index Levels in Coyah for September

The chart shows the monthly maximum UV Index (UVI) for Coyah 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 Coyah typically reaches 14, which falls under the extreme exposure category.

Data source: Coyah 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 Coyah Compares to Other Months

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

This table compares monthly weather conditions in Coyah, 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)	0 mm (0.0 inches)	65%	very high
February Weather	27°C (81°F)	0 mm (0.0 inches)	72%	very high
March Weather	28°C (82°F)	2 mm (0.1 inches)	73%	extreme
April Weather	28°C (83°F)	13 mm (0.5 inches)	78%	extreme
May Weather	28°C (82°F)	65 mm (2.6 inches)	80%	extreme
June Weather	27°C (80°F)	274 mm (10.8 inches)	84%	extreme
July Weather	25°C (78°F)	922 mm (36.3 inches)	84%	extreme
August Weather	25°C (78°F)	839 mm (33.0 inches)	90%	extreme
September Weather	26°C (79°F)	475 mm (18.7 inches)	89%	extreme
October Weather	27°C (80°F)	232 mm (9.1 inches)	86%	extreme
November Weather	27°C (80°F)	101 mm (4.0 inches)	79%	very high
December Weather	26°C (80°F)	7 mm (0.3 inches)	70%	very high