September Weather in Richgrove, United States

Last updated: June 24, 2025

In September, the average temperature in Richgrove, United States hovers around 26°C (79°F). Expect a minimum of 10°C (50°F) and the possibility of soaring to a maximum of 42°C (108°F). With an average humidity of 48% and a negligible precipitation amount of just 2 mm (0.1 in) over 0 days, the weather is typically dry and warm, perfect for outdoor adventures!

September Temperature in Richgrove

In September in Richgrove, the average temperature is 26°C (79°F). Maximums can reach 42°C (108°F), while minimums can drop to as low as 10°C (50°F). Be prepared for a wide range of temperatures when planning your travel to Richgrove in September.

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

The chart illustrates September temperature patterns in Richgrove, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Richgrove, September typically has an average temperature of 26°C (79°F), with highs reaching up to 42°C (108°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Richgrove

In Richgrove in September, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

September Precipitation Trends in Richgrove

The chart displays monthly precipitation patterns in Richgrove, 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 Richgrove, September typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 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 Richgrove

In Richgrove in September humidity is 48%. With average temperature 26°C (79°F), this humidity feels like a warm, pleasant embrace that enhances the tropical atmosphere, making it a perfect setting for leisurely strolls and outdoor explorations.

September Average Humidity in Richgrove

This chart illustrates the average monthly humidity levels in Richgrove, 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 Richgrove 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 Richgrove

In Richgrove 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 Richgrove.

Maximum UV Index Levels in Richgrove for September

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

Data source: Richgrove 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 Richgrove Compares to Other Months

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

This table compares monthly weather conditions in Richgrove, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (51°F)	58 mm (2.3 inches)	78%	moderate
February Weather	11°C (52°F)	62 mm (2.4 inches)	82%	moderate
March Weather	13°C (56°F)	78 mm (3.1 inches)	75%	very high
April Weather	17°C (63°F)	33 mm (1.3 inches)	68%	very high
May Weather	21°C (70°F)	23 mm (0.9 inches)	57%	very high
June Weather	27°C (81°F)	1 mm (0.0 inches)	52%	extreme
July Weather	31°C (87°F)	0 mm (0.0 inches)	46%	extreme
August Weather	30°C (86°F)	0 mm (0.0 inches)	39%	extreme
September Weather	26°C (79°F)	2 mm (0.1 inches)	48%	very high
October Weather	20°C (68°F)	9 mm (0.4 inches)	59%	high
November Weather	14°C (58°F)	30 mm (1.2 inches)	72%	moderate
December Weather	10°C (50°F)	59 mm (2.3 inches)	76%	moderate