September Weather in Weed, United States

Last updated: June 24, 2025

In Weed, United States, the average temperature in September hovers around 17°C (62°F), providing a pleasant climate. However, temperatures can fluctuate significantly, with minimums dipping to -1°C (30°F) and maximums reaching up to 35°C (95°F). Precipitation averages about 19 mm (0.7 in) spread over 3 days, while the average humidity sits at a comfortable 62%. Enjoy the variability and prepare for a range of weather conditions!

September Temperature in Weed

In September in Weed, the average temperature is 17°C (62°F), with maximums reaching up to 35°C (95°F) and minimums dipping as low as -1°C (30°F). Be prepared for a range of temperatures to ensure a comfortable travel experience.

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

The chart illustrates September temperature patterns in Weed, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Weed, September typically has an average temperature of 17°C (62°F), with highs reaching up to 35°C (95°F) and lows dropping to around -1°C (30°F).

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

September Precipitation in Weed

In Weed in September, the precipitation amount is 19 mm (0.7 in) over a period of 3 days.

September Precipitation Trends in Weed

The chart displays monthly precipitation patterns in Weed, 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 Weed, September typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 3 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 Weed

In Weed in September, humidity is 62%. With an average temperature of 17°C (62°F), this humidity feels like a warm embrace, making it a comfortable yet slightly muggy environment for traveling, perfect for leisurely strolls but possibly requiring light clothing adjustments.

September Average Humidity in Weed

This chart illustrates the average monthly humidity levels in Weed, 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 Weed is approximately 62%, 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 Weed

In Weed 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 Weed.

Maximum UV Index Levels in Weed for September

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

Data source: Weed 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 Weed Compares to Other Months

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

This table compares monthly weather conditions in Weed, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	139 mm (5.5 inches)	86%	moderate
February Weather	2°C (37°F)	137 mm (5.4 inches)	85%	moderate
March Weather	4°C (40°F)	127 mm (5.0 inches)	85%	high
April Weather	8°C (47°F)	78 mm (3.1 inches)	82%	very high
May Weather	12°C (55°F)	66 mm (2.6 inches)	81%	extreme
June Weather	18°C (64°F)	22 mm (0.9 inches)	79%	extreme
July Weather	23°C (73°F)	5 mm (0.2 inches)	70%	extreme
August Weather	22°C (71°F)	10 mm (0.4 inches)	60%	very high
September Weather	17°C (62°F)	19 mm (0.7 inches)	62%	very high
October Weather	10°C (50°F)	52 mm (2.0 inches)	72%	high
November Weather	5°C (41°F)	80 mm (3.1 inches)	87%	moderate
December Weather	1°C (35°F)	102 mm (4.0 inches)	86%	moderate