September Weather in Preston, United States

Last updated: June 24, 2025

In September, the average temperature in Preston, United States is a pleasant 23°C (73°F). Expect nighttime lows around 10°C (51°F) and daytime highs reaching up to 33°C (91°F). Be prepared for some rain, with an average precipitation of 105 mm (4.1 in) spread over approximately 10 days. The air is quite humid, with an average humidity level of 75%, making it a great time to enjoy the lush surroundings!

September Temperature in Preston

In September in Preston, the average temperature is 23°C (73°F). The maximum can reach 33°C (91°F), while the minimum can drop to as low as 10°C (51°F). This pleasant climate makes Preston a great destination for travelers seeking comfortable weather and diverse activities during this time of year.

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

The chart illustrates September temperature patterns in Preston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Preston, September typically has an average temperature of 23°C (73°F), with highs reaching up to 33°C (91°F) and lows dropping to around 10°C (51°F).

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

September Precipitation in Preston

In Preston in September, the precipitation amount is 105 mm (4.1 in) over the course of 10 days.

September Precipitation Trends in Preston

The chart displays monthly precipitation patterns in Preston, 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 Preston, September typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 10 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 Preston

In Preston in September, humidity is 75%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel slightly uncomfortable yet invigorating as the air wraps around you, creating a sense of walking through a lush, tropical paradise.

September Average Humidity in Preston

This chart illustrates the average monthly humidity levels in Preston, 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 Preston is approximately 75%, 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 Preston

In Preston in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Preston.

Maximum UV Index Levels in Preston for September

The chart shows the monthly maximum UV Index (UVI) for Preston 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 Preston typically reaches 8, which falls under the very high exposure category.

Data source: Preston 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 Preston Compares to Other Months

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

This table compares monthly weather conditions in Preston, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	65 mm (2.6 inches)	84%	moderate
February Weather	5°C (42°F)	103 mm (4.1 inches)	83%	moderate
March Weather	8°C (47°F)	89 mm (3.5 inches)	83%	high
April Weather	14°C (57°F)	89 mm (3.5 inches)	81%	very high
May Weather	19°C (66°F)	125 mm (4.9 inches)	78%	very high
June Weather	24°C (75°F)	97 mm (3.8 inches)	79%	very high
July Weather	27°C (81°F)	152 mm (6.0 inches)	74%	very high
August Weather	26°C (79°F)	161 mm (6.3 inches)	72%	very high
September Weather	23°C (73°F)	105 mm (4.1 inches)	75%	very high
October Weather	18°C (64°F)	123 mm (4.8 inches)	81%	high
November Weather	10°C (50°F)	82 mm (3.2 inches)	85%	moderate
December Weather	6°C (43°F)	100 mm (3.9 inches)	84%	moderate