September Weather in San Vicente, Mexico

Last updated: August 26, 2025

In September, the average temperature in San Vicente, Mexico is a comfortable 20°C (69°F), with a minimum dipping to 10°C (51°F) and a maximum soaring to 32°C (89°F). Expect a precipitation amount of 145 mm (5.7 in) spread across 18 days, accompanied by an average humidity level of 81%.

September Temperature in San Vicente

In September in San Vicente, the average temperature is 20°C (69°F), with maximums reaching 32°C (89°F) and minimums dropping to 10°C (51°F). This climate makes it a perfect time for travelers to enjoy outdoor activities while wearing light layers for cooler evenings.

September Weather in San Vicente: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Vicente, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Vicente, September typically has an average temperature of 20°C (69°F), with highs reaching up to 32°C (89°F) and lows dropping to around 10°C (51°F).

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

September Precipitation in San Vicente

In San Vicente in September, the precipitation amount is 145 mm (5.7 in) over the course of 18 days.

September Precipitation Trends in San Vicente

The chart displays monthly precipitation patterns in San Vicente, 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 San Vicente, September typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 18 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 San Vicente

In San Vicente in September, humidity is 81%. With an average temperature of 20°C (69°F), this humidity feels like a thick blanket embracing you, making travel a bit uncomfortable and sticky.

September Average Humidity in San Vicente

This chart illustrates the average monthly humidity levels in San Vicente, 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 San Vicente 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 San Vicente

In San Vicente 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 San Vicente, you can check here.

Maximum UV Index Levels in San Vicente for September

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

Data source: San Vicente 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 San Vicente Compares to Other Months

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

This table compares monthly weather conditions in San Vicente, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (61°F)	2 mm (0.1 inches)	74%	very high
February Weather	18°C (65°F)	5 mm (0.2 inches)	65%	extreme
March Weather	21°C (70°F)	6 mm (0.2 inches)	58%	extreme
April Weather	23°C (74°F)	3 mm (0.1 inches)	58%	extreme
May Weather	24°C (76°F)	33 mm (1.3 inches)	67%	extreme
June Weather	23°C (73°F)	148 mm (5.8 inches)	76%	extreme
July Weather	21°C (70°F)	159 mm (6.3 inches)	67%	extreme
August Weather	21°C (70°F)	160 mm (6.3 inches)	68%	extreme
September Weather	20°C (69°F)	145 mm (5.7 inches)	81%	extreme
October Weather	20°C (68°F)	45 mm (1.8 inches)	83%	extreme
November Weather	18°C (65°F)	15 mm (0.6 inches)	84%	very high
December Weather	16°C (61°F)	3 mm (0.1 inches)	81%	very high