September Weather in Prunedale, United States

Last updated: June 24, 2025

In September, the average temperature in Prunedale, United States hovers around 17°C (63°F), providing a comfortable climate. Expect minimums of 10°C (50°F) and delightful highs reaching up to 33°C (92°F). With only 6 mm (0.2 in) of precipitation spread over just 0 days, the weather is generally dry. The average humidity sits at a pleasant 55%, making it an ideal time to explore the area!

September Temperature in Prunedale

In September in Prunedale, the average temperature is 17°C (63°F). Maximum temperatures can reach 33°C (92°F), while the minimum can drop to as low as 10°C (50°F). It’s a great time to visit for those who enjoy mild weather and a mix of warmth and coolness.

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

The chart illustrates September temperature patterns in Prunedale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Prunedale, September typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (92°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Prunedale

In Prunedale in September, the total precipitation amount is 6 mm (0.2 in), spread over a duration of 0 days.

September Precipitation Trends in Prunedale

The chart displays monthly precipitation patterns in Prunedale, 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 Prunedale, September typically receives around 6 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.

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Millimeters (mm) Inches (in)

September Humidity in Prunedale

In Prunedale in September humidity is 55%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing breeze that invigorates your senses while traveling, making it a pleasant environment to explore and enjoy the sights.

September Average Humidity in Prunedale

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

In Prunedale 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 Prunedale.

Maximum UV Index Levels in Prunedale for September

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

Data source: Prunedale 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 Prunedale Compares to Other Months

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

This table compares monthly weather conditions in Prunedale, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	105 mm (4.1 inches)	82%	moderate
February Weather	11°C (52°F)	85 mm (3.4 inches)	84%	moderate
March Weather	12°C (53°F)	87 mm (3.4 inches)	82%	very high
April Weather	13°C (55°F)	31 mm (1.2 inches)	78%	very high
May Weather	14°C (57°F)	21 mm (0.8 inches)	71%	extreme
June Weather	16°C (60°F)	2 mm (0.1 inches)	64%	extreme
July Weather	16°C (61°F)	2 mm (0.1 inches)	58%	extreme
August Weather	17°C (63°F)	2 mm (0.1 inches)	54%	very high
September Weather	17°C (63°F)	6 mm (0.2 inches)	55%	very high
October Weather	16°C (60°F)	19 mm (0.7 inches)	62%	high
November Weather	13°C (56°F)	39 mm (1.5 inches)	78%	moderate
December Weather	11°C (52°F)	87 mm (3.4 inches)	80%	moderate