September Weather in Blanco, United States

Last updated: June 24, 2025

In Blanco, United States, the average temperature in September reaches a warm 26°C (78°F), with extremes ranging from a cool 10°C (51°F) to a scorching 37°C (100°F). Expect 107 mm (4.2 in) of precipitation spread over about 10 days, accompanied by an average humidity of 65%.

September Temperature in Blanco

In September in Blanco, the average temperature is 26°C (78°F). The maximum can reach 37°C (100°F) and the minimum can be as low as 10°C (51°F). This range of temperatures makes Blanco an ideal destination for travelers seeking a warm climate with some cooler moments to enjoy.

September Weather in Blanco: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Blanco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blanco, September typically has an average temperature of 26°C (78°F), with highs reaching up to 37°C (100°F) and lows dropping to around 10°C (51°F).

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

September Precipitation in Blanco

In Blanco in September, the precipitation amount is 107 mm (4.2 in) accumulated over a period of 10 days.

September Precipitation Trends in Blanco

The chart displays monthly precipitation patterns in Blanco, 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 Blanco, September typically receives around 107 mm (4.2 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 Blanco

In Blanco in September, humidity is 65%. With an average temperature of 26°C (78°F), this humidity feels like a warm, muggy embrace that can make outdoor activities a bit challenging, often leaving travelers feeling sticky and in need of frequent breaks in the shade.

September Average Humidity in Blanco

This chart illustrates the average monthly humidity levels in Blanco, 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 Blanco is approximately 65%, 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 Blanco

In Blanco in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Blanco.

Maximum UV Index Levels in Blanco for September

The chart shows the monthly maximum UV Index (UVI) for Blanco 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 Blanco typically reaches 11, which falls under the extreme exposure category.

Data source: Blanco 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 Blanco Compares to Other Months

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

This table compares monthly weather conditions in Blanco, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (51°F)	43 mm (1.7 inches)	79%	moderate
February Weather	11°C (53°F)	60 mm (2.4 inches)	79%	very high
March Weather	17°C (63°F)	62 mm (2.4 inches)	74%	very high
April Weather	20°C (68°F)	74 mm (2.9 inches)	76%	extreme
May Weather	24°C (75°F)	135 mm (5.3 inches)	81%	extreme
June Weather	27°C (81°F)	81 mm (3.2 inches)	76%	extreme
July Weather	28°C (83°F)	58 mm (2.3 inches)	66%	extreme
August Weather	29°C (84°F)	73 mm (2.9 inches)	58%	extreme
September Weather	26°C (78°F)	107 mm (4.2 inches)	65%	extreme
October Weather	21°C (69°F)	88 mm (3.4 inches)	74%	very high
November Weather	15°C (59°F)	36 mm (1.4 inches)	81%	high
December Weather	12°C (54°F)	51 mm (2.0 inches)	86%	moderate