September Weather in Puerto Casma, Peru

Last updated: August 27, 2025

In September, the average temperature in Puerto Casma, Peru hovers around 16°C (60°F), with a minimum of 14°C (57°F) and a maximum of 17°C (64°F). Expect a light touch of rain, with precipitation at just 7 mm (0.3 in) spread across 0 days. The average humidity is a comfortable 62%, making it a pleasant time to explore.

September Temperature in Puerto Casma

In September in Puerto Casma, the average temperature is 16°C (60°F), with maximums reaching 17°C (64°F) and minimums dropping to as low as 14°C (57°F). This mild climate makes it an ideal time for outdoor activities and exploration.

September Weather in Puerto Casma: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Puerto Casma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Puerto Casma, September typically has an average temperature of 16°C (60°F), with highs reaching up to 17°C (64°F) and lows dropping to around 14°C (57°F).

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

September Precipitation in Puerto Casma

In Puerto Casma in September, the precipitation amount is 7 mm (0.3 in) occurring over a span of 0 days.

September Precipitation Trends in Puerto Casma

The chart displays monthly precipitation patterns in Puerto Casma, 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 Puerto Casma, September typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 0 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 Puerto Casma

In Puerto Casma in September, humidity is 62%. With an average temperature of 16°C (60°F), this humidity feels like a damp embrace, making travel slightly uncomfortable as the air can feel heavier and more stifling, potentially leading to a lingering sense of stickiness while exploring.

September Average Humidity in Puerto Casma

This chart illustrates the average monthly humidity levels in Puerto Casma, 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 Puerto Casma is approximately 62%, 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 Puerto Casma

In Puerto Casma 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 Puerto Casma.

Maximum UV Index Levels in Puerto Casma for September

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

Data source: Puerto Casma 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 Puerto Casma Compares to Other Months

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

This table compares monthly weather conditions in Puerto Casma, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (69°F)	3 mm (0.1 inches)	91%	extreme
February Weather	22°C (72°F)	6 mm (0.2 inches)	89%	extreme
March Weather	22°C (72°F)	6 mm (0.2 inches)	89%	extreme
April Weather	20°C (68°F)	2 mm (0.1 inches)	88%	extreme
May Weather	18°C (65°F)	3 mm (0.1 inches)	84%	extreme
June Weather	18°C (64°F)	4 mm (0.2 inches)	73%	very high
July Weather	17°C (63°F)	6 mm (0.2 inches)	55%	very high
August Weather	16°C (61°F)	6 mm (0.2 inches)	53%	extreme
September Weather	16°C (60°F)	7 mm (0.3 inches)	62%	extreme
October Weather	16°C (61°F)	4 mm (0.2 inches)	82%	extreme
November Weather	17°C (62°F)	2 mm (0.1 inches)	89%	extreme
December Weather	19°C (66°F)	9 mm (0.4 inches)	91%	extreme