September Weather in Manchester, United States

Last updated: June 24, 2025

In Manchester, United States, the average temperature in September hovers around 19°C (66°F), with minimums dipping to 2°C (36°F) and maximums climbing up to 33°C (91°F). Expect a precipitation amount of 129 mm (5.1 in) over approximately 10 days, accompanied by an average humidity of 74%. Enjoy the dynamic climate and prepare accordingly!

September Temperature in Manchester

In September in Manchester, the average temperature is 19°C (66°F), with maximums reaching up to 33°C (91°F) and minimums dipping as low as 2°C (36°F). This makes it a great time for travelers to enjoy a mix of warm days and cool nights, perfect for exploring the local sights.

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

The chart illustrates September temperature patterns in Manchester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Manchester, September typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Manchester

In Manchester in September, the precipitation amount is 129 mm (5.1 in) over a span of 10 days.

September Precipitation Trends in Manchester

The chart displays monthly precipitation patterns in Manchester, 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 Manchester, September typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 10 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 Manchester

In Manchester in September humidity is 74%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it ideal for leisurely outdoor exploration but potentially heavy for those not accustomed to tropical conditions.

September Average Humidity in Manchester

This chart illustrates the average monthly humidity levels in Manchester, 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 Manchester is approximately 74%, 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 Manchester

In Manchester 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 Manchester.

Maximum UV Index Levels in Manchester for September

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

Data source: Manchester 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 Manchester Compares to Other Months

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

This table compares monthly weather conditions in Manchester, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	46 mm (1.8 inches)	84%	moderate
February Weather	-6°C (22°F)	56 mm (2.2 inches)	85%	moderate
March Weather	2°C (37°F)	66 mm (2.6 inches)	84%	moderate
April Weather	8°C (47°F)	78 mm (3.1 inches)	83%	very high
May Weather	16°C (60°F)	172 mm (6.8 inches)	75%	very high
June Weather	22°C (72°F)	134 mm (5.3 inches)	79%	extreme
July Weather	24°C (75°F)	110 mm (4.3 inches)	75%	very high
August Weather	22°C (71°F)	91 mm (3.6 inches)	69%	very high
September Weather	19°C (66°F)	129 mm (5.1 inches)	74%	very high
October Weather	10°C (51°F)	142 mm (5.6 inches)	79%	moderate
November Weather	2°C (36°F)	47 mm (1.9 inches)	88%	moderate
December Weather	-2°C (29°F)	41 mm (1.6 inches)	82%	moderate