September Weather in Kirby, United States

Last updated: June 24, 2025

In September, the average temperature in Kirby, United States hovers around 27°C (80°F), making it a warm destination. Temperatures can vary significantly, with a minimum of 12°C (54°F) and a maximum rising to 39°C (102°F). Visitors should also prepare for some rainfall, as the average precipitation is 117 mm (4.6 in) spread over about 10 days. Additionally, the average humidity of 65% adds a tropical touch to the atmosphere.

September Temperature in Kirby

In September in Kirby, the average temperature is 27°C (80°F). Maximums can reach 39°C (102°F) and minimums can be as low as 12°C (54°F). Travelers should be prepared for a mix of warm days and cooler evenings while enjoying the vibrant atmosphere of Kirby.

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

The chart illustrates September temperature patterns in Kirby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kirby, September typically has an average temperature of 27°C (80°F), with highs reaching up to 39°C (102°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in Kirby

In Kirby in September, the total precipitation amount is 117 mm (4.6 in) recorded over a span of 10 days.

September Precipitation Trends in Kirby

The chart displays monthly precipitation patterns in Kirby, 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 Kirby, September typically receives around 117 mm (4.6 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 Kirby

In Kirby in September humidity is 65%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket wrapped around you, making outdoor exploration a bit sticky but still enjoyable. The air feels thick and slightly heavy, which can lead to quicker fatigue during sightseeing, so it’s wise to stay hydrated and take breaks in the shade.

September Average Humidity in Kirby

This chart illustrates the average monthly humidity levels in Kirby, 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 Kirby 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 Kirby

In Kirby 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 Kirby.

Maximum UV Index Levels in Kirby for September

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

Data source: Kirby 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 Kirby Compares to Other Months

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

This table compares monthly weather conditions in Kirby, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (53°F)	44 mm (1.7 inches)	79%	moderate
February Weather	13°C (55°F)	58 mm (2.3 inches)	79%	very high
March Weather	18°C (65°F)	62 mm (2.5 inches)	74%	very high
April Weather	21°C (70°F)	71 mm (2.8 inches)	76%	extreme
May Weather	25°C (77°F)	130 mm (5.1 inches)	81%	extreme
June Weather	28°C (83°F)	78 mm (3.1 inches)	76%	extreme
July Weather	29°C (85°F)	69 mm (2.7 inches)	66%	extreme
August Weather	30°C (86°F)	56 mm (2.2 inches)	58%	extreme
September Weather	27°C (80°F)	117 mm (4.6 inches)	65%	extreme
October Weather	22°C (72°F)	89 mm (3.5 inches)	74%	very high
November Weather	16°C (61°F)	46 mm (1.8 inches)	81%	high
December Weather	13°C (56°F)	57 mm (2.3 inches)	86%	moderate