September Weather in Cerro El Castillo, Panama

Last updated: August 27, 2025

In September, the average temperature in Cerro El Castillo, Panama hovers around 27°C (80°F). Expect a comfortable minimum of 24°C (75°F), while highs can reach up to 31°C (88°F). However, be prepared for some rain, as precipitation levels average around 251 mm (9.9 in) over 29 days, accompanied by a noticeable average humidity of 87%.

September Temperature in Cerro El Castillo

In September in Cerro El Castillo, the average temperature is 27°C (80°F), with maximums reaching 31°C (88°F) and minimums dropping to as low as 24°C (75°F). This pleasant climate makes it an ideal time for exploring and enjoying outdoor activities in Cerro El Castillo.

September Weather in Cerro El Castillo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cerro El Castillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cerro El Castillo, September typically has an average temperature of 27°C (80°F), with highs reaching up to 31°C (88°F) and lows dropping to around 24°C (75°F).

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

September Precipitation in Cerro El Castillo

In Cerro El Castillo in September, the precipitation amount is 251 mm (9.9 in) distributed over 29 days.

September Precipitation Trends in Cerro El Castillo

The chart displays monthly precipitation patterns in Cerro El Castillo, 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 Cerro El Castillo, September typically receives around 251 mm (9.9 inches) of precipitation spread over approximately 29 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 Cerro El Castillo

In Cerro El Castillo in September humidity is 87%. With an average temperature of 27°C (80°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and challenging for traveling.

September Average Humidity in Cerro El Castillo

This chart illustrates the average monthly humidity levels in Cerro El Castillo, 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 Cerro El Castillo is approximately 87%, 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 Cerro El Castillo

In Cerro El Castillo 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 Cerro El Castillo.

Maximum UV Index Levels in Cerro El Castillo for September

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

Data source: Cerro El Castillo 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 Cerro El Castillo Compares to Other Months

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

This table compares monthly weather conditions in Cerro El Castillo, 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)	56 mm (2.2 inches)	72%	extreme
February Weather	27°C (80°F)	15 mm (0.6 inches)	71%	extreme
March Weather	27°C (80°F)	21 mm (0.8 inches)	69%	extreme
April Weather	27°C (81°F)	92 mm (3.6 inches)	71%	extreme
May Weather	27°C (81°F)	279 mm (11.0 inches)	76%	extreme
June Weather	27°C (81°F)	277 mm (10.9 inches)	89%	extreme
July Weather	27°C (80°F)	330 mm (13.0 inches)	88%	extreme
August Weather	27°C (80°F)	293 mm (11.5 inches)	86%	extreme
September Weather	27°C (80°F)	251 mm (9.9 inches)	87%	extreme
October Weather	26°C (80°F)	288 mm (11.3 inches)	86%	extreme
November Weather	26°C (79°F)	221 mm (8.7 inches)	86%	extreme
December Weather	27°C (80°F)	119 mm (4.7 inches)	79%	very high