September Weather in Las Rosas, Mexico

Last updated: August 27, 2025

In Las Rosas, Mexico, the average temperature in September hovers around 21°C (71°F), with minimums dipping to 13°C (56°F) and maximums reaching up to 30°C (87°F). Expect 339 mm (13.3 in) of precipitation spread over 23 days, contributing to an average humidity of 77%.

September Temperature in Las Rosas

In September in Las Rosas, the average temperature is 21°C (71°F). The maximum can reach 30°C (87°F) and the minimum can be as low as 13°C (56°F). Overall, it's a pleasant time to visit, ideal for outdoor activities and exploring the area.

September Weather in Las Rosas: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Las Rosas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Las Rosas, September typically has an average temperature of 21°C (71°F), with highs reaching up to 30°C (87°F) and lows dropping to around 13°C (56°F).

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

September Precipitation in Las Rosas

In Las Rosas in September, the total precipitation amount is 339 mm (13.3 in) that falls over the course of 23 days.

September Precipitation Trends in Las Rosas

The chart displays monthly precipitation patterns in Las Rosas, 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 Las Rosas, September typically receives around 339 mm (13.3 inches) of precipitation spread over approximately 23 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 Las Rosas

In Las Rosas in September, humidity is 77%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace that envelops you, making it both refreshing and slightly heavy, which can be a bit tiring for traveling.

September Average Humidity in Las Rosas

This chart illustrates the average monthly humidity levels in Las Rosas, 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 Las Rosas is approximately 77%, 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 Las Rosas

In Las Rosas 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 Las Rosas, you can check here.

Maximum UV Index Levels in Las Rosas for September

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

Data source: Las Rosas 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 Las Rosas Compares to Other Months

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

This table compares monthly weather conditions in Las Rosas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (66°F)	8 mm (0.3 inches)	84%	very high
February Weather	20°C (68°F)	3 mm (0.1 inches)	73%	extreme
March Weather	21°C (71°F)	3 mm (0.1 inches)	59%	extreme
April Weather	23°C (73°F)	25 mm (1.0 inches)	52%	extreme
May Weather	23°C (73°F)	165 mm (6.5 inches)	53%	extreme
June Weather	21°C (71°F)	282 mm (11.1 inches)	55%	extreme
July Weather	22°C (72°F)	99 mm (3.9 inches)	61%	extreme
August Weather	22°C (72°F)	193 mm (7.6 inches)	71%	extreme
September Weather	21°C (71°F)	339 mm (13.3 inches)	77%	extreme
October Weather	21°C (70°F)	267 mm (10.5 inches)	78%	extreme
November Weather	20°C (68°F)	46 mm (1.8 inches)	82%	very high
December Weather	19°C (66°F)	16 mm (0.6 inches)	86%	very high