September Weather in Hawthorne, United States

Last updated: June 24, 2025

In Hawthorne, United States, the average temperature in September hovers around 27°C (80°F), with a minimum of 18°C (65°F) and a maximum reaching 36°C (98°F). Expect precipitation of 138 mm (5.4 in) spread over about 16 days, and enjoy the tropical feel with an average humidity of 83%.

September Temperature in Hawthorne

In September in Hawthorne, the average temperature is 27°C (80°F), with maximums reaching 36°C (98°F) and minimums dipping as low as 18°C (65°F). Overall, this pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities in Hawthorne.

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 27°C (80°F), with highs reaching up to 36°C (98°F) and lows dropping to around 18°C (65°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 138 mm (5.4 in), falling over a span of 16 days.

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 138 mm (5.4 inches) of precipitation spread over approximately 16 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 83%. With an average temperature of 27°C (80°F), this humidity feels like a warm, steamy embrace, making traveling a bit uncomfortable as the air clings to your skin and renders even the slightest exertion more exhausting.

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 83%, 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	14°C (58°F)	47 mm (1.9 inches)	83%	moderate
February Weather	18°C (64°F)	59 mm (2.3 inches)	80%	very high
March Weather	19°C (66°F)	34 mm (1.3 inches)	75%	very high
April Weather	21°C (71°F)	80 mm (3.1 inches)	70%	extreme
May Weather	25°C (76°F)	103 mm (4.1 inches)	68%	extreme
June Weather	27°C (80°F)	162 mm (6.4 inches)	75%	extreme
July Weather	27°C (81°F)	193 mm (7.6 inches)	79%	extreme
August Weather	27°C (82°F)	181 mm (7.1 inches)	81%	extreme
September Weather	27°C (80°F)	138 mm (5.4 inches)	83%	very high
October Weather	24°C (76°F)	76 mm (3.0 inches)	81%	very high
November Weather	18°C (65°F)	59 mm (2.3 inches)	82%	high
December Weather	16°C (61°F)	79 mm (3.1 inches)	84%	moderate