September Weather in Owyhee, United States

Last updated: June 24, 2025

In September, the average temperature in Owyhee, United States hovers around 15°C (60°F). Be prepared for a range of temperatures, as it can dip to a chilly -2°C (28°F) or soar to a sweltering 36°C (96°F). On average, expect about 21 mm (0.8 in) of precipitation over 4 days, complemented by a humidity level of 40%.

September Temperature in Owyhee

In September in Owyhee, the average temperature is 15°C (60°F), with maximums reaching up to 36°C (96°F) and minimums dropping as low as -2°C (28°F). This range suggests that travelers should be prepared for both warm and cool conditions, making versatile clothing essential for any outdoor activities.

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

The chart illustrates September temperature patterns in Owyhee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Owyhee, September typically has an average temperature of 15°C (60°F), with highs reaching up to 36°C (96°F) and lows dropping to around -2°C (28°F).

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

September Precipitation in Owyhee

In Owyhee in September, the precipitation amount is 21 mm (0.8 in) over a span of 4 days.

September Precipitation Trends in Owyhee

The chart displays monthly precipitation patterns in Owyhee, 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 Owyhee, September typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 4 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 Owyhee

In Owyhee in September humidity is 40%. With an average temperature of 15°C (60°F), this humidity feels like a refreshing embrace, making it comfortable for traveling as you can enjoy outdoor explorations without the sticky, oppressive heat often present in more humid conditions.

September Average Humidity in Owyhee

This chart illustrates the average monthly humidity levels in Owyhee, 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 Owyhee is approximately 40%, 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 Owyhee

In Owyhee 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 Owyhee.

Maximum UV Index Levels in Owyhee for September

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

Data source: Owyhee 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 Owyhee Compares to Other Months

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

This table compares monthly weather conditions in Owyhee, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	50 mm (2.0 inches)	84%	moderate
February Weather	-4°C (26°F)	54 mm (2.1 inches)	85%	high
March Weather	0°C (33°F)	43 mm (1.7 inches)	81%	very high
April Weather	5°C (41°F)	55 mm (2.2 inches)	74%	very high
May Weather	10°C (50°F)	68 mm (2.7 inches)	61%	extreme
June Weather	16°C (62°F)	38 mm (1.5 inches)	59%	extreme
July Weather	23°C (73°F)	5 mm (0.2 inches)	49%	extreme
August Weather	21°C (71°F)	12 mm (0.5 inches)	36%	very high
September Weather	15°C (60°F)	21 mm (0.8 inches)	40%	very high
October Weather	7°C (44°F)	37 mm (1.5 inches)	59%	high
November Weather	2°C (36°F)	44 mm (1.7 inches)	81%	moderate
December Weather	-4°C (25°F)	48 mm (1.9 inches)	84%	moderate