September Weather in Alma, United States

Last updated: June 24, 2025

In September, the average temperature in Alma, United States hovers around 22°C (72°F), making it a pleasant time to visit. However, be prepared for a range in temperatures, with lows of 6°C (42°F) and highs soaring up to 35°C (96°F). Visitors can expect about 90 mm (3.5 in) of precipitation over 7 days, complemented by an average humidity of 71%. Enjoy your stay!

September Temperature in Alma

In September in Alma, the average temperature is 22°C (72°F). The maximum can reach 35°C (96°F), while the minimum can drop as low as 6°C (42°F). This diverse temperature range makes Alma an ideal destination for travelers looking to experience both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Alma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alma, September typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (96°F) and lows dropping to around 6°C (42°F).

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

September Precipitation in Alma

In Alma in September, the precipitation amount is 90 mm (3.5 in) over the course of 7 days.

September Precipitation Trends in Alma

The chart displays monthly precipitation patterns in Alma, 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 Alma, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 7 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 Alma

In Alma in September humidity is 71%. With an average temperature of 22°C (72°F), this humidity feels like the air is thick and slightly stifling, making outdoor activities require frequent breaks to stay hydrated and cool.

September Average Humidity in Alma

This chart illustrates the average monthly humidity levels in Alma, 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 Alma is approximately 71%, 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 Alma

In Alma 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 Alma.

Maximum UV Index Levels in Alma for September

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

Data source: Alma 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 Alma Compares to Other Months

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

This table compares monthly weather conditions in Alma, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (31°F)	38 mm (1.5 inches)	76%	moderate
February Weather	0°C (33°F)	29 mm (1.1 inches)	77%	moderate
March Weather	8°C (47°F)	97 mm (3.8 inches)	70%	high
April Weather	12°C (54°F)	80 mm (3.1 inches)	73%	very high
May Weather	18°C (65°F)	200 mm (7.9 inches)	82%	very high
June Weather	25°C (77°F)	97 mm (3.8 inches)	82%	extreme
July Weather	27°C (80°F)	94 mm (3.7 inches)	81%	extreme
August Weather	25°C (77°F)	138 mm (5.4 inches)	78%	very high
September Weather	22°C (72°F)	90 mm (3.5 inches)	71%	very high
October Weather	13°C (56°F)	114 mm (4.5 inches)	71%	high
November Weather	7°C (44°F)	32 mm (1.2 inches)	81%	moderate
December Weather	3°C (37°F)	32 mm (1.2 inches)	84%	moderate