September Weather in Tracy, United States

Last updated: June 24, 2025

In September, the average temperature in Tracy, United States is a pleasant 22°C (71°F). However, temperatures can vary significantly, with a minimum of 8°C (47°F) and a maximum of 41°C (105°F). Expect minimal rainfall, with an average precipitation amount of just 2 mm (0.1 in) over 0 days. The conditions are generally comfortable, featuring an average humidity of 55%.

September Temperature in Tracy

In September in Tracy, the average temperature is 22°C (71°F). Maximum temperatures can reach 41°C (105°F), while minimum temperatures can drop to as low as 8°C (47°F). This range makes Tracy an ideal destination for travelers seeking warm weather combined with cooler evenings.

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

The chart illustrates September temperature patterns in Tracy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tracy, September typically has an average temperature of 22°C (71°F), with highs reaching up to 41°C (105°F) and lows dropping to around 8°C (47°F).

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

September Precipitation in Tracy

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

September Precipitation Trends in Tracy

The chart displays monthly precipitation patterns in Tracy, 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 Tracy, 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.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Tracy

In Tracy in September, humidity is 55%. With an average temperature of 22°C (71°F), this humidity feels like a warm, balmy embrace, making it ideal for exploring outdoors but often requiring light, breathable clothing for comfort while traveling.

September Average Humidity in Tracy

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

In Tracy 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 Tracy.

Maximum UV Index Levels in Tracy for September

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

Data source: Tracy 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 Tracy Compares to Other Months

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

This table compares monthly weather conditions in Tracy, 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 (50°F)	92 mm (3.6 inches)	82%	moderate
February Weather	11°C (52°F)	76 mm (3.0 inches)	84%	moderate
March Weather	12°C (55°F)	75 mm (2.9 inches)	82%	very high
April Weather	16°C (60°F)	31 mm (1.2 inches)	78%	very high
May Weather	19°C (66°F)	16 mm (0.6 inches)	71%	extreme
June Weather	22°C (73°F)	1 mm (0.0 inches)	64%	extreme
July Weather	24°C (75°F)	0 mm (0.0 inches)	58%	extreme
August Weather	24°C (75°F)	0 mm (0.0 inches)	54%	very high
September Weather	22°C (71°F)	2 mm (0.1 inches)	55%	very high
October Weather	18°C (64°F)	22 mm (0.9 inches)	62%	high
November Weather	13°C (55°F)	33 mm (1.3 inches)	78%	moderate
December Weather	9°C (49°F)	78 mm (3.1 inches)	80%	moderate