September Weather in Rosa Blanca, Mexico

Last updated: August 27, 2025

The average temperature in Rosa Blanca, Mexico during September is a pleasant 22°C (71°F). Expect a minimum of 16°C (60°F) and a maximum of 31°C (89°F). However, be prepared for some rain, as the area experiences an average precipitation of 285 mm (11.2 in) spread over 26 days. With an average humidity of 84%, it's a month to enjoy warm, albeit damp, days!

September Temperature in Rosa Blanca

In September in Rosa Blanca, the average temperature is a pleasant 22°C (71°F). The maximum can reach a warm 31°C (89°F), while the minimum can drop to a cooler 16°C (60°F). This mild climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

September Weather in Rosa Blanca: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rosa Blanca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosa Blanca, September typically has an average temperature of 22°C (71°F), with highs reaching up to 31°C (89°F) and lows dropping to around 16°C (60°F).

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

September Precipitation in Rosa Blanca

In Rosa Blanca in September, the precipitation amount is 285 mm (11.2 in) over the course of 26 days.

September Precipitation Trends in Rosa Blanca

The chart displays monthly precipitation patterns in Rosa Blanca, 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 Rosa Blanca, September typically receives around 285 mm (11.2 inches) of precipitation spread over approximately 26 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 Rosa Blanca

In Rosa Blanca in September, humidity is 84%. With an average temperature of 22°C (71°F), this humidity feels like a warm, sticky blanket wrapping around you, making outdoor activities a bit challenging but also inviting you to seek out shaded spots and cool refreshments during your travels.

September Average Humidity in Rosa Blanca

This chart illustrates the average monthly humidity levels in Rosa Blanca, 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 Rosa Blanca 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 Rosa Blanca

In Rosa Blanca 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 Rosa Blanca.

Maximum UV Index Levels in Rosa Blanca for September

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

Data source: Rosa Blanca 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 Rosa Blanca Compares to Other Months

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

This table compares monthly weather conditions in Rosa Blanca, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (63°F)	12 mm (0.5 inches)	64%	very high
February Weather	18°C (65°F)	21 mm (0.8 inches)	57%	extreme
March Weather	20°C (69°F)	2 mm (0.1 inches)	46%	extreme
April Weather	22°C (71°F)	1 mm (0.0 inches)	42%	extreme
May Weather	23°C (74°F)	11 mm (0.4 inches)	51%	extreme
June Weather	24°C (75°F)	107 mm (4.2 inches)	74%	extreme
July Weather	22°C (72°F)	269 mm (10.6 inches)	79%	extreme
August Weather	22°C (72°F)	268 mm (10.5 inches)	81%	extreme
September Weather	22°C (71°F)	285 mm (11.2 inches)	84%	extreme
October Weather	22°C (71°F)	109 mm (4.3 inches)	75%	extreme
November Weather	20°C (68°F)	17 mm (0.7 inches)	71%	very high
December Weather	17°C (63°F)	14 mm (0.6 inches)	74%	high