September Weather in Rancho Viejo, Mexico

Last updated: August 27, 2025

In September, the average temperature in Rancho Viejo, Mexico is a comfortable 19°C (67°F). Expect temperatures to range from a minimum of 8°C (47°F) to a maximum of 31°C (88°F). With an average humidity of 81%, the atmosphere can feel quite moist, particularly during the 15 days when precipitation totals around 131 mm (5.2 in). Enjoy the season while preparing for some wet days!

September Temperature in Rancho Viejo

In September in Rancho Viejo, the average temperature is 19°C (67°F), with maximums reaching 31°C (88°F) and minimums dropping as low as 8°C (47°F). This climate makes it an ideal time for travelers to enjoy outdoor activities while being prepared for varying temperatures.

September Weather in Rancho Viejo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rancho Viejo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rancho Viejo, September typically has an average temperature of 19°C (67°F), with highs reaching up to 31°C (88°F) and lows dropping to around 8°C (47°F).

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

September Precipitation in Rancho Viejo

In Rancho Viejo in September, the precipitation amount is 131 mm (5.2 in) over a span of 15 days.

September Precipitation Trends in Rancho Viejo

The chart displays monthly precipitation patterns in Rancho Viejo, 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 Rancho Viejo, September typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 15 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 Rancho Viejo

In Rancho Viejo in September humidity is 81%. With an average temperature of 19°C (67°F), this humidity feels like a heavy blanket enveloping you, making travel somewhat uncomfortable as sweat clings to your skin and the air feels thick, prompting you to seek shade and hydration frequently.

September Average Humidity in Rancho Viejo

This chart illustrates the average monthly humidity levels in Rancho Viejo, 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 Rancho Viejo 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 Rancho Viejo

In Rancho Viejo 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 Rancho Viejo, you can check here.

Maximum UV Index Levels in Rancho Viejo for September

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

Data source: Rancho Viejo 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 Rancho Viejo Compares to Other Months

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

This table compares monthly weather conditions in Rancho Viejo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (58°F)	3 mm (0.1 inches)	74%	very high
February Weather	17°C (62°F)	6 mm (0.2 inches)	65%	extreme
March Weather	19°C (67°F)	9 mm (0.3 inches)	58%	extreme
April Weather	21°C (71°F)	7 mm (0.3 inches)	58%	extreme
May Weather	23°C (73°F)	38 mm (1.5 inches)	67%	extreme
June Weather	21°C (70°F)	145 mm (5.7 inches)	76%	extreme
July Weather	20°C (68°F)	117 mm (4.6 inches)	67%	extreme
August Weather	20°C (69°F)	94 mm (3.7 inches)	68%	extreme
September Weather	19°C (67°F)	131 mm (5.2 inches)	81%	extreme
October Weather	18°C (65°F)	50 mm (2.0 inches)	83%	extreme
November Weather	16°C (61°F)	18 mm (0.7 inches)	84%	very high
December Weather	14°C (58°F)	5 mm (0.2 inches)	81%	very high