September Weather in Arma, United States

Last updated: June 24, 2025

In September, the average temperature in Arma, United States hovers around 23°C (74°F). Expect minimums dipping to 7°C (45°F) and maximums soaring to 35°C (95°F). Rain is a possibility, with 90 mm (3.5 in) of precipitation spread over 6 days. The atmosphere is comfortably humid, boasting an average humidity of 64%.

September Temperature in Arma

In September in Arma, the average temperature is 23°C (74°F). The maximum can reach 35°C (95°F), and the minimum can be as low as 7°C (45°F). This diverse temperature range makes Arma an ideal destination for travelers seeking to enjoy both warm days and cool evenings.

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

The chart illustrates September temperature patterns in Arma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arma, September typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (95°F) and lows dropping to around 7°C (45°F).

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

September Precipitation in Arma

In Arma in September, the total precipitation amount reaches 90 mm (3.5 in) over the course of 6 days.

September Precipitation Trends in Arma

The chart displays monthly precipitation patterns in Arma, 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 Arma, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 6 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 Arma

In Arma in September, humidity is 64%. With an average temperature of 23°C (74°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration enjoyable yet slightly sticky, so it's best to stay hydrated and take breaks in the shade while traveling.

September Average Humidity in Arma

This chart illustrates the average monthly humidity levels in Arma, 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 Arma is approximately 64%, 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 Arma

In Arma 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 Arma.

Maximum UV Index Levels in Arma for September

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

Data source: Arma 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 Arma Compares to Other Months

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

This table compares monthly weather conditions in Arma, 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 (36°F)	66 mm (2.6 inches)	81%	moderate
February Weather	3°C (38°F)	62 mm (2.4 inches)	78%	moderate
March Weather	10°C (50°F)	126 mm (5.0 inches)	76%	high
April Weather	14°C (57°F)	129 mm (5.1 inches)	78%	very high
May Weather	20°C (68°F)	199 mm (7.8 inches)	83%	very high
June Weather	25°C (78°F)	100 mm (4.0 inches)	83%	extreme
July Weather	27°C (81°F)	103 mm (4.0 inches)	78%	extreme
August Weather	26°C (79°F)	121 mm (4.8 inches)	68%	very high
September Weather	23°C (74°F)	90 mm (3.5 inches)	64%	very high
October Weather	15°C (60°F)	119 mm (4.7 inches)	70%	high
November Weather	8°C (47°F)	51 mm (2.0 inches)	83%	moderate
December Weather	5°C (42°F)	38 mm (1.5 inches)	87%	moderate