September Weather in Hawthorne, United States

Last updated: June 24, 2025

In September, the average temperature in Hawthorne, United States is a pleasant 20°C (68°F). However, temperatures can vary significantly, with a minimum of 0°C (33°F) and a maximum of 36°C (98°F). During this month, expect around 9 mm (0.4 in) of precipitation over the course of 1 day, and the average humidity hovers around 41%. Enjoy the month ahead!

September Temperature in Hawthorne

In September in Hawthorne, the average temperature is 20°C (68°F). Maximum temperatures can reach 36°C (98°F), and minimums can drop as low as 0°C (33°F). Be prepared for a wide range of temperatures, making it essential to pack accordingly for your travels.

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

The chart illustrates September temperature patterns in Hawthorne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hawthorne, September typically has an average temperature of 20°C (68°F), with highs reaching up to 36°C (98°F) and lows dropping to around 0°C (33°F).

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

September Precipitation in Hawthorne

In Hawthorne in September, the precipitation amount is 9 mm (0.4 in) over the course of 1 day.

September Precipitation Trends in Hawthorne

The chart displays monthly precipitation patterns in Hawthorne, 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 Hawthorne, September typically receives around 9 mm (0.4 inches) of precipitation spread over approximately 1 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Hawthorne

In Hawthorne in September humidity is 41%. With an average temperature of 20°C (68°F), this humidity feels like a mild and refreshing breeze, making it quite pleasant for traveling and exploring the area comfortably.

September Average Humidity in Hawthorne

This chart illustrates the average monthly humidity levels in Hawthorne, 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 Hawthorne is approximately 41%, 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 Hawthorne

In Hawthorne in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Hawthorne.

Maximum UV Index Levels in Hawthorne for September

The chart shows the monthly maximum UV Index (UVI) for Hawthorne 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 Hawthorne typically reaches 10, which falls under the very high exposure category.

Data source: Hawthorne 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 Hawthorne Compares to Other Months

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

This table compares monthly weather conditions in Hawthorne, 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)	34 mm (1.4 inches)	85%	moderate
February Weather	0°C (33°F)	31 mm (1.2 inches)	87%	high
March Weather	5°C (41°F)	34 mm (1.3 inches)	84%	very high
April Weather	11°C (51°F)	20 mm (0.8 inches)	78%	very high
May Weather	15°C (59°F)	34 mm (1.3 inches)	64%	extreme
June Weather	22°C (71°F)	7 mm (0.3 inches)	56%	extreme
July Weather	26°C (79°F)	10 mm (0.4 inches)	44%	extreme
August Weather	25°C (78°F)	6 mm (0.2 inches)	34%	extreme
September Weather	20°C (68°F)	9 mm (0.4 inches)	41%	very high
October Weather	11°C (53°F)	15 mm (0.6 inches)	60%	high
November Weather	6°C (44°F)	17 mm (0.7 inches)	81%	moderate
December Weather	-1°C (31°F)	29 mm (1.1 inches)	82%	moderate