September Weather in Buena Vista, United States

Last updated: June 24, 2025

In September, the average temperature in Buena Vista, United States is a pleasant 20°C (69°F). However, temperatures can vary widely, reaching a minimum of 3°C (38°F) and soaring up to a maximum of 35°C (95°F). Expect 102 mm (4.0 in) of precipitation over approximately 10 days, coupled with an average humidity of 75%—a combination that makes this month both vibrant and refreshing!

September Temperature in Buena Vista

In September in Buena Vista, the average temperature is 20°C (69°F). Maximums can reach 35°C (95°F), while minimums can be as low as 3°C (38°F). This variability makes it essential for travelers to pack accordingly and prepare for both warm and cool conditions.

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

The chart illustrates September temperature patterns in 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 Buena Vista, September typically has an average temperature of 20°C (69°F), with highs reaching up to 35°C (95°F) and lows dropping to around 3°C (38°F).

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

September Precipitation in Buena Vista

In Buena Vista in September, the total precipitation amount is 102 mm (4.0 in) falling over the course of 10 days.

September Precipitation Trends in Buena Vista

The chart displays monthly precipitation patterns in 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 Buena Vista, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 10 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 Buena Vista

In Buena Vista in September, humidity is 75%. With an average temperature of 20°C (69°F), this humidity feels like a warm, enveloping blanket, making travel a bit muggy and requiring frequent hydration breaks to stay comfortable while exploring.

September Average Humidity in Buena Vista

This chart illustrates the average monthly humidity levels in 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 Buena Vista is approximately 75%, 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 Buena Vista

In Buena Vista in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Buena Vista.

Maximum UV Index Levels in Buena Vista for September

The chart shows the monthly maximum UV Index (UVI) for 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 Buena Vista typically reaches 9, which falls under the very high exposure category.

Data source: 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 Buena Vista Compares to Other Months

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

This table compares monthly weather conditions in 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	2°C (35°F)	69 mm (2.7 inches)	84%	moderate
February Weather	5°C (41°F)	108 mm (4.2 inches)	84%	high
March Weather	8°C (46°F)	77 mm (3.0 inches)	84%	very high
April Weather	13°C (56°F)	126 mm (5.0 inches)	82%	very high
May Weather	18°C (65°F)	125 mm (4.9 inches)	82%	very high
June Weather	22°C (72°F)	100 mm (4.0 inches)	83%	extreme
July Weather	25°C (77°F)	61 mm (2.4 inches)	79%	very high
August Weather	23°C (74°F)	105 mm (4.1 inches)	77%	very high
September Weather	20°C (69°F)	102 mm (4.0 inches)	75%	very high
October Weather	15°C (59°F)	116 mm (4.6 inches)	81%	high
November Weather	7°C (44°F)	82 mm (3.2 inches)	87%	moderate
December Weather	4°C (40°F)	99 mm (3.9 inches)	85%	moderate