September Weather in Ossian, United States

Last updated: June 24, 2025

In Ossian, United States, the average temperature in September hovers around 20°C (68°F). You can expect a minimum of 4°C (39°F) and a maximum of 33°C (92°F). This month also sees 63 mm (2.5 in) of precipitation spread over 7 days, accompanied by a notable average humidity of 78%—perfect for enjoying the lush greenery of the season!

September Temperature in Ossian

In September in Ossian, the average temperature is 20°C (68°F). Maximum temperatures can reach up to 33°C (92°F), while minimums can drop as low as 4°C (39°F). It's a great time for travelers to enjoy mild weather and plan outdoor activities.

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

The chart illustrates September temperature patterns in Ossian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ossian, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (39°F).

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

September Precipitation in Ossian

In Ossian in September, the precipitation amount is 63 mm (2.5 in) over a span of 7 days.

September Precipitation Trends in Ossian

The chart displays monthly precipitation patterns in Ossian, 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 Ossian, September typically receives around 63 mm (2.5 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 Ossian

In Ossian in September humidity is 78%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes exploring the sights a bit sticky, so travelers should stay hydrated and take frequent breaks in the shade.

September Average Humidity in Ossian

This chart illustrates the average monthly humidity levels in Ossian, 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 Ossian is approximately 78%, 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 Ossian

In Ossian in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Ossian.

Maximum UV Index Levels in Ossian for September

The chart shows the monthly maximum UV Index (UVI) for Ossian 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 Ossian typically reaches 8, which falls under the very high exposure category.

Data source: Ossian 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 Ossian Compares to Other Months

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

This table compares monthly weather conditions in Ossian, 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 (29°F)	74 mm (2.9 inches)	85%	moderate
February Weather	-1°C (31°F)	80 mm (3.2 inches)	85%	moderate
March Weather	5°C (41°F)	103 mm (4.0 inches)	86%	high
April Weather	10°C (50°F)	94 mm (3.7 inches)	87%	very high
May Weather	17°C (63°F)	127 mm (5.0 inches)	81%	very high
June Weather	22°C (73°F)	115 mm (4.5 inches)	82%	very high
July Weather	24°C (76°F)	105 mm (4.1 inches)	81%	very high
August Weather	23°C (74°F)	95 mm (3.8 inches)	79%	very high
September Weather	20°C (68°F)	63 mm (2.5 inches)	78%	very high
October Weather	13°C (56°F)	103 mm (4.0 inches)	81%	high
November Weather	5°C (41°F)	82 mm (3.2 inches)	89%	moderate
December Weather	1°C (35°F)	61 mm (2.4 inches)	86%	low