September Weather in Alva, United States

Last updated: June 24, 2025

In Alva, United States, the average temperature in September is a warm 28°C (82°F), with a minimum of 20°C (68°F) and soaring to a maximum of 35°C (96°F). Expect an average precipitation of 191 mm (7.5 in) spread over 22 days, along with a high humidity level of 83%, creating a tropical atmosphere perfect for those who enjoy warm climates.

September Temperature in Alva

In September in Alva, the average temperature is 28°C (82°F), with maximums reaching up to 35°C (96°F) and minimums dropping as low as 20°C (68°F). It's a great time to explore Alva while enjoying warm weather and comfortable evenings.

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

The chart illustrates September temperature patterns in Alva, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alva, September typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (96°F) and lows dropping to around 20°C (68°F).

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

September Precipitation in Alva

In Alva in September, the precipitation amount totals 191 mm (7.5 in) over a span of 22 days.

September Precipitation Trends in Alva

The chart displays monthly precipitation patterns in Alva, 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 Alva, September typically receives around 191 mm (7.5 inches) of precipitation spread over approximately 22 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 Alva

In Alva in September humidity is 83%. With an average temperature of 28°C (82°F), this humidity feels like stepping into a warm, thick blanket, making travel languid and drenched in sweat.

September Average Humidity in Alva

This chart illustrates the average monthly humidity levels in Alva, 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 Alva is approximately 83%, 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 Alva

In Alva 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 Alva.

Maximum UV Index Levels in Alva for September

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

Data source: Alva 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 Alva Compares to Other Months

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

This table compares monthly weather conditions in Alva, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (65°F)	37 mm (1.4 inches)	83%	high
February Weather	21°C (71°F)	40 mm (1.6 inches)	80%	very high
March Weather	22°C (72°F)	22 mm (0.9 inches)	75%	very high
April Weather	25°C (77°F)	58 mm (2.3 inches)	68%	extreme
May Weather	27°C (80°F)	147 mm (5.8 inches)	65%	extreme
June Weather	27°C (82°F)	251 mm (9.9 inches)	73%	extreme
July Weather	28°C (82°F)	267 mm (10.5 inches)	77%	extreme
August Weather	28°C (83°F)	249 mm (9.8 inches)	80%	extreme
September Weather	28°C (82°F)	191 mm (7.5 inches)	83%	extreme
October Weather	26°C (80°F)	98 mm (3.9 inches)	83%	very high
November Weather	22°C (73°F)	44 mm (1.7 inches)	83%	high
December Weather	20°C (68°F)	46 mm (1.8 inches)	84%	moderate