September Weather in Rancho Calaveras, United States

Last updated: June 24, 2025

In September, the average temperature in Rancho Calaveras, United States reaches a pleasant 22°C (72°F). While the mercury can dip as low as 8°C (46°F), it can also soar to a sizzling 41°C (107°F). Expect a modest precipitation of 6 mm (0.2 in) spread over just 1 day, and enjoy the comfort of an average humidity of 44%.

September Temperature in Rancho Calaveras

In September in Rancho Calaveras, the average temperature is 22°C (72°F), with maximums reaching up to 41°C (107°F) and minimums dropping as low as 8°C (46°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack both light clothing for the heat and layers for cooler moments.

September Weather in Rancho Calaveras: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rancho Calaveras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rancho Calaveras, September typically has an average temperature of 22°C (72°F), with highs reaching up to 41°C (107°F) and lows dropping to around 8°C (46°F).

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

September Precipitation in Rancho Calaveras

In Rancho Calaveras in September, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.

September Precipitation Trends in Rancho Calaveras

The chart displays monthly precipitation patterns in Rancho Calaveras, 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 Rancho Calaveras, September typically receives around 6 mm (0.2 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 Rancho Calaveras

In Rancho Calaveras in September, humidity is 44%. With an average temperature of 22°C (72°F), this humidity feels like a comfortable embrace, making it perfect for outdoor adventures and sightseeing without feeling too sticky or oppressive.

September Average Humidity in Rancho Calaveras

This chart illustrates the average monthly humidity levels in Rancho Calaveras, 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 Rancho Calaveras is approximately 44%, 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 Rancho Calaveras

In Rancho Calaveras 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 Rancho Calaveras.

Maximum UV Index Levels in Rancho Calaveras for September

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

Data source: Rancho Calaveras 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 Rancho Calaveras Compares to Other Months

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

This table compares monthly weather conditions in Rancho Calaveras, 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 (48°F)	164 mm (6.5 inches)	84%	moderate
February Weather	9°C (49°F)	157 mm (6.2 inches)	84%	moderate
March Weather	11°C (53°F)	178 mm (7.0 inches)	83%	very high
April Weather	15°C (59°F)	79 mm (3.1 inches)	81%	very high
May Weather	18°C (64°F)	45 mm (1.8 inches)	74%	very high
June Weather	23°C (73°F)	3 mm (0.1 inches)	64%	extreme
July Weather	25°C (78°F)	0 mm (0.0 inches)	44%	extreme
August Weather	25°C (77°F)	0 mm (0.0 inches)	36%	very high
September Weather	22°C (72°F)	6 mm (0.2 inches)	44%	very high
October Weather	17°C (63°F)	43 mm (1.7 inches)	65%	high
November Weather	12°C (53°F)	82 mm (3.2 inches)	84%	moderate
December Weather	8°C (47°F)	136 mm (5.3 inches)	83%	moderate