September Weather in Catio, Guinea-Bissau

Last updated: August 23, 2025

In Catio, Guinea-Bissau, the average temperature in September is a warm 27°C (80°F), offering a pleasant climate for outdoor activities. Temperatures can dip as low as 22°C (73°F) and soar up to 33°C (92°F). However, be prepared for rain, as 404 mm (15.9 in) of precipitation typically falls over 28 days, accompanied by an average humidity of 84%.

September Temperature in Catio

In September in Catio, the average temperature is 27°C (80°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 22°C (73°F). This pleasant climate makes it an ideal time for travelers to explore the beautiful surroundings and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Catio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Catio, September typically has an average temperature of 27°C (80°F), with highs reaching up to 33°C (92°F) and lows dropping to around 22°C (73°F).

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

September Precipitation in Catio

In Catio in September, the total precipitation amount is 404 mm (15.9 in) spread over a duration of 28 days.

September Precipitation Trends in Catio

The chart displays monthly precipitation patterns in Catio, 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 Catio, September typically receives around 404 mm (15.9 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 Catio

In Catio in September, humidity is 84%. With an average temperature of 27°C (80°F), this humidity feels like a thick, warm blanket enveloping you, making travel feel sluggish and exhausting.

September Average Humidity in Catio

This chart illustrates the average monthly humidity levels in Catio, 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 Catio is approximately 84%, 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 Catio

In Catio 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 Catio, you can check here.

Maximum UV Index Levels in Catio for September

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

Data source: Catio 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 Catio Compares to Other Months

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

This table compares monthly weather conditions in Catio, 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)	0 mm (0.0 inches)	57%	very high
February Weather	27°C (81°F)	0 mm (0.0 inches)	64%	very high
March Weather	28°C (82°F)	0 mm (0.0 inches)	64%	extreme
April Weather	28°C (83°F)	0 mm (0.0 inches)	73%	extreme
May Weather	28°C (83°F)	8 mm (0.3 inches)	76%	extreme
June Weather	28°C (83°F)	81 mm (3.2 inches)	80%	extreme
July Weather	27°C (80°F)	590 mm (23.2 inches)	81%	extreme
August Weather	26°C (80°F)	561 mm (22.1 inches)	86%	extreme
September Weather	27°C (80°F)	404 mm (15.9 inches)	84%	extreme
October Weather	28°C (82°F)	176 mm (6.9 inches)	80%	extreme
November Weather	28°C (82°F)	44 mm (1.7 inches)	73%	very high
December Weather	27°C (80°F)	0 mm (0.0 inches)	65%	very high