September Weather in Manchester, United States

Last updated: June 24, 2025

In September, the average temperature in Manchester, United States reaches a comfortable 17°C (63°F). However, temperatures can vary significantly, with minimums dropping to 2°C (36°F) and maximums soaring up to 32°C (90°F). Expect about 72 mm (2.8 in) of precipitation spread over approximately 8 days, contributing to an average humidity level of 77%. Prepare accordingly for a mix of warm days and the occasional shower!

September Temperature in Manchester

In September in Manchester, the average temperature is 17°C (63°F). Maximum temperatures can reach 32°C (90°F), while the minimum can drop as low as 2°C (36°F). This makes Manchester a great destination for travelers seeking a variety of weather experiences, from warm days to cooler evenings.

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 17°C (63°F), with highs reaching up to 32°C (90°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 72 mm (2.8 in) over the course of 8 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 72 mm (2.8 inches) of precipitation spread over approximately 8 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 Manchester

In Manchester in September, humidity is 77%. With an average temperature of 17°C (63°F), this humidity feels like a cozy blanket wrapped around you, creating a muggy atmosphere that can be a bit uncomfortable for traveling, making you want to seek shade and hydration as you explore.

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 77%, 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 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check 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 7, which falls under the 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	-5°C (24°F)	84 mm (3.3 inches)	88%	low
February Weather	-4°C (25°F)	83 mm (3.3 inches)	88%	moderate
March Weather	0°C (32°F)	71 mm (2.8 inches)	85%	moderate
April Weather	7°C (44°F)	117 mm (4.6 inches)	81%	high
May Weather	13°C (55°F)	78 mm (3.1 inches)	76%	very high
June Weather	19°C (66°F)	63 mm (2.5 inches)	74%	very high
July Weather	22°C (71°F)	110 mm (4.3 inches)	74%	very high
August Weather	21°C (70°F)	77 mm (3.0 inches)	74%	very high
September Weather	17°C (63°F)	72 mm (2.8 inches)	77%	high
October Weather	11°C (52°F)	127 mm (5.0 inches)	82%	moderate
November Weather	3°C (38°F)	106 mm (4.2 inches)	85%	moderate
December Weather	-3°C (28°F)	116 mm (4.6 inches)	84%	low