September Weather in Onaga, United States

Last updated: June 24, 2025

In Onaga, United States, the average temperature for September is a pleasant 22°C (72°F). Expect temperatures to vary from a cool 5°C (42°F) at night to a toasty 36°C (97°F) during the day. Prepare for 75 mm (2.9 in) of precipitation spread over 7 days, with an average humidity of 71%. Enjoy the diverse climate as you explore!

September Temperature in Onaga

In September in Onaga, the average temperature is 22°C (72°F), with maximums reaching 36°C (97°F) and minimums dipping as low as 5°C (42°F). This range makes it a perfect time for travelers to enjoy comfortable outdoor activities while being prepared for warm days and cooler nights.

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

The chart illustrates September temperature patterns in Onaga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onaga, September typically has an average temperature of 22°C (72°F), with highs reaching up to 36°C (97°F) and lows dropping to around 5°C (42°F).

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

September Precipitation in Onaga

In Onaga in September, the precipitation amount is 75 mm (2.9 in) over a span of 7 days.

September Precipitation Trends in Onaga

The chart displays monthly precipitation patterns in Onaga, 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 Onaga, September typically receives around 75 mm (2.9 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 Onaga

In Onaga 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 Onaga

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

In Onaga 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 Onaga.

Maximum UV Index Levels in Onaga for September

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

Data source: Onaga 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 Onaga Compares to Other Months

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

This table compares monthly weather conditions in Onaga, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	33 mm (1.3 inches)	76%	moderate
February Weather	-1°C (31°F)	31 mm (1.2 inches)	77%	moderate
March Weather	7°C (45°F)	98 mm (3.9 inches)	70%	high
April Weather	12°C (53°F)	75 mm (2.9 inches)	73%	very high
May Weather	18°C (65°F)	213 mm (8.4 inches)	82%	very high
June Weather	25°C (77°F)	103 mm (4.1 inches)	82%	extreme
July Weather	27°C (80°F)	87 mm (3.4 inches)	81%	extreme
August Weather	24°C (76°F)	110 mm (4.3 inches)	78%	very high
September Weather	22°C (72°F)	75 mm (2.9 inches)	71%	very high
October Weather	13°C (56°F)	111 mm (4.4 inches)	71%	high
November Weather	6°C (43°F)	36 mm (1.4 inches)	81%	moderate
December Weather	2°C (36°F)	28 mm (1.1 inches)	84%	moderate