September Weather in Chualar, United States

Last updated: June 24, 2025

In September, the average temperature in Chualar, United States is a pleasant 18°C (65°F). However, temperatures can vary significantly, with a minimum of 6°C (44°F) and a maximum soaring up to 39°C (102°F). Rainfall is scarce, with only 5 mm (0.2 in) expected over 0 days. Humidity levels typically hover around 55%, making for a comfortable climate overall.

September Temperature in Chualar

In September in Chualar, the average temperature is 18°C (65°F). Maximum temperatures can reach 39°C (102°F), while minimums can drop to as low as 6°C (44°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

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

The chart illustrates September temperature patterns in Chualar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chualar, September typically has an average temperature of 18°C (65°F), with highs reaching up to 39°C (102°F) and lows dropping to around 6°C (44°F).

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

September Precipitation in Chualar

In Chualar in September, the precipitation amount is 5 mm (0.2 in) during a span of 0 days.

September Precipitation Trends in Chualar

The chart displays monthly precipitation patterns in Chualar, 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 Chualar, September typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 0 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 Chualar

In Chualar in September humidity is 55%. With an average temperature of 18°C (65°F), this humidity feels like a gentle embrace, creating a comfortable yet slightly sticky atmosphere that is perfect for leisurely strolls and outdoor adventures.

September Average Humidity in Chualar

This chart illustrates the average monthly humidity levels in Chualar, 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 Chualar is approximately 55%, 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 Chualar

In Chualar 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 Chualar.

Maximum UV Index Levels in Chualar for September

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

Data source: Chualar 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 Chualar Compares to Other Months

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

This table compares monthly weather conditions in Chualar, 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)	108 mm (4.2 inches)	82%	moderate
February Weather	10°C (49°F)	83 mm (3.3 inches)	84%	moderate
March Weather	10°C (51°F)	93 mm (3.7 inches)	82%	very high
April Weather	12°C (54°F)	28 mm (1.1 inches)	78%	very high
May Weather	14°C (57°F)	19 mm (0.8 inches)	71%	extreme
June Weather	17°C (63°F)	1 mm (0.0 inches)	64%	extreme
July Weather	19°C (66°F)	0 mm (0.0 inches)	58%	extreme
August Weather	19°C (67°F)	0 mm (0.0 inches)	54%	extreme
September Weather	18°C (65°F)	5 mm (0.2 inches)	55%	very high
October Weather	16°C (61°F)	15 mm (0.6 inches)	62%	high
November Weather	12°C (54°F)	34 mm (1.3 inches)	78%	moderate
December Weather	9°C (49°F)	93 mm (3.7 inches)	80%	moderate