September Weather in Rosamond, United States

Last updated: June 24, 2025

In September, the average temperature in Rosamond, United States hovers around 24°C (76°F), making it a pleasant time to visit. However, be prepared for fluctuations, as temperatures can dip to a cool 8°C (46°F) or soar to a sizzling 42°C (107°F). With just 2 mm (0.1 in) of precipitation over the course of a mere 1 day, you can expect mostly dry weather. The average humidity remains comfortable at 48%, contributing to an enjoyable climate overall.

September Temperature in Rosamond

In September in Rosamond, the average temperature is 24°C (76°F), with a maximum that can reach 42°C (107°F) and a minimum that can drop as low as 8°C (46°F). This makes it a diverse climate, perfect for travelers looking to experience both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Rosamond, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosamond, September typically has an average temperature of 24°C (76°F), with highs reaching up to 42°C (107°F) and lows dropping to around 8°C (46°F).

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

September Precipitation in Rosamond

In Rosamond in September, the precipitation amount is 2 mm (0.1 in) during one day.

September Precipitation Trends in Rosamond

The chart displays monthly precipitation patterns in Rosamond, 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 Rosamond, September typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 1 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 Rosamond

In Rosamond in September, humidity is 48%. With an average temperature of 24°C (76°F), this humidity feels like a pleasant embrace, making it comfortable for exploring the local sights and enjoying outdoor activities without feeling overly sticky or excessively hot.

September Average Humidity in Rosamond

This chart illustrates the average monthly humidity levels in Rosamond, 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 Rosamond is approximately 48%, 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 Rosamond

In Rosamond 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 Rosamond.

Maximum UV Index Levels in Rosamond for September

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

Data source: Rosamond 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 Rosamond Compares to Other Months

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

This table compares monthly weather conditions in Rosamond, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	41 mm (1.6 inches)	78%	moderate
February Weather	10°C (50°F)	31 mm (1.2 inches)	82%	high
March Weather	12°C (54°F)	38 mm (1.5 inches)	75%	very high
April Weather	16°C (62°F)	17 mm (0.7 inches)	68%	very high
May Weather	19°C (67°F)	7 mm (0.3 inches)	57%	extreme
June Weather	24°C (76°F)	1 mm (0.0 inches)	52%	extreme
July Weather	28°C (82°F)	2 mm (0.1 inches)	46%	extreme
August Weather	27°C (81°F)	1 mm (0.1 inches)	39%	extreme
September Weather	24°C (76°F)	2 mm (0.1 inches)	48%	very high
October Weather	18°C (65°F)	3 mm (0.1 inches)	59%	high
November Weather	14°C (57°F)	12 mm (0.5 inches)	72%	moderate
December Weather	9°C (48°F)	42 mm (1.7 inches)	76%	moderate