September Weather in Palmillas, Mexico

Last updated: August 27, 2025

In Palmillas, Mexico, the average temperature in September is a pleasant 18°C (65°F), with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 28°C (83°F). Expect some rainfall, as 155 mm (6.1 in) can be expected over about 20 days. The air tends to be quite humid, with an average humidity level of 81%.

September Temperature in Palmillas

In September, in Palmillas, the average temperature is 18°C (65°F). Maximums can reach 28°C (83°F), while minimums can drop as low as 8°C (47°F). This makes Palmillas an ideal destination for travelers seeking mild weather and comfortable conditions during their visit.

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

The chart illustrates September temperature patterns in Palmillas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Palmillas, September typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (83°F) and lows dropping to around 8°C (47°F).

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

September Precipitation in Palmillas

In Palmillas in September, the precipitation amount is 155 mm (6.1 in) spread over a duration of 20 days.

September Precipitation Trends in Palmillas

The chart displays monthly precipitation patterns in Palmillas, 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 Palmillas, September typically receives around 155 mm (6.1 inches) of precipitation spread over approximately 20 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 Palmillas

In Palmillas in September, humidity is 81%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick and sultry—a challenging environment for traveling.

September Average Humidity in Palmillas

This chart illustrates the average monthly humidity levels in Palmillas, 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 Palmillas is approximately 81%, 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 Palmillas

In Palmillas 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 Palmillas, you can check here.

Maximum UV Index Levels in Palmillas for September

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

Data source: Palmillas 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 Palmillas Compares to Other Months

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

This table compares monthly weather conditions in Palmillas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (55°F)	10 mm (0.4 inches)	74%	very high
February Weather	15°C (60°F)	12 mm (0.5 inches)	65%	extreme
March Weather	17°C (64°F)	23 mm (0.9 inches)	58%	extreme
April Weather	20°C (68°F)	21 mm (0.8 inches)	58%	extreme
May Weather	21°C (70°F)	51 mm (2.0 inches)	67%	extreme
June Weather	20°C (68°F)	157 mm (6.2 inches)	76%	extreme
July Weather	19°C (66°F)	130 mm (5.1 inches)	67%	extreme
August Weather	19°C (66°F)	107 mm (4.2 inches)	68%	extreme
September Weather	18°C (65°F)	155 mm (6.1 inches)	81%	extreme
October Weather	17°C (62°F)	94 mm (3.7 inches)	83%	extreme
November Weather	14°C (58°F)	30 mm (1.2 inches)	84%	very high
December Weather	13°C (56°F)	9 mm (0.4 inches)	81%	very high