September Weather in San Jose Buena Vista, Mexico

Last updated: August 27, 2025

The average temperature in San Jose Buena Vista, Mexico during September is a comfortable 18°C (65°F), with a minimum of 10°C (50°F) and a maximum reaching 27°C (81°F). However, be prepared for some wet days, as the area receives 227 mm (8.9 in) of precipitation over 24 days. With an average humidity of 86%, San Jose Buena Vista can feel quite moist, making it essential to pack accordingly!

September Temperature in San Jose Buena Vista

In September in San Jose Buena Vista, the average temperature is 18°C (65°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as 10°C (50°F). This pleasant weather makes it an ideal time for outdoor activities and exploration.

September Weather in San Jose Buena Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Jose Buena Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jose Buena Vista, September typically has an average temperature of 18°C (65°F), with highs reaching up to 27°C (81°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in San Jose Buena Vista

In San Jose Buena Vista in September, the precipitation amount is 227 mm (8.9 in) over a span of 24 days.

September Precipitation Trends in San Jose Buena Vista

The chart displays monthly precipitation patterns in San Jose Buena Vista, 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 Jose Buena Vista, September typically receives around 227 mm (8.9 inches) of precipitation spread over approximately 24 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in San Jose Buena Vista

In San Jose Buena Vista in September humidity is 86%. With an average temperature of 18°C (65°F), this humidity feels like you’re wrapped in a warm, heavy blanket, making outdoor activities feel quite muggy and sticky for traveling.

September Average Humidity in San Jose Buena Vista

This chart illustrates the average monthly humidity levels in San Jose Buena Vista, 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 Jose Buena Vista is approximately 86%, 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 Jose Buena Vista

In San Jose Buena Vista 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 Jose Buena Vista, you can check here.

Maximum UV Index Levels in San Jose Buena Vista for September

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

Data source: San Jose Buena Vista 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 Jose Buena Vista Compares to Other Months

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

This table compares monthly weather conditions in San Jose Buena Vista, 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 (57°F)	19 mm (0.7 inches)	88%	very high
February Weather	16°C (60°F)	14 mm (0.5 inches)	86%	extreme
March Weather	17°C (62°F)	23 mm (0.9 inches)	84%	extreme
April Weather	19°C (66°F)	52 mm (2.0 inches)	81%	extreme
May Weather	19°C (67°F)	102 mm (4.0 inches)	82%	extreme
June Weather	18°C (65°F)	198 mm (7.8 inches)	81%	extreme
July Weather	18°C (65°F)	122 mm (4.8 inches)	81%	extreme
August Weather	18°C (65°F)	138 mm (5.5 inches)	82%	extreme
September Weather	18°C (65°F)	227 mm (8.9 inches)	86%	extreme
October Weather	17°C (64°F)	112 mm (4.4 inches)	90%	extreme
November Weather	15°C (60°F)	40 mm (1.6 inches)	91%	very high
December Weather	14°C (58°F)	13 mm (0.5 inches)	91%	very high