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September Weather in Sheffield, United States

Last updated: June 24, 2025

In September, the average temperature in Sheffield, United States hovers around 17°C (63°F), offering a pleasant climate for outdoor activities. Expect a minimum of 1°C (34°F) and a comfortable maximum of 31°C (88°F). The region registers about 105 mm (4.1 in) of precipitation over 10 days, contributing to the average humidity level of 67%. Perfect weather for exploring the beauty of Sheffield!

September Temperature in Sheffield

In September in Sheffield, the average temperature is 17°C (63°F). Maximums can reach 31°C (88°F), and minimums can be as low as 1°C (34°F). This makes Sheffield a great destination for travelers looking to experience mild weather with the possibility of warm days and cooler nights.

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

The chart illustrates September temperature patterns in Sheffield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sheffield, September typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (88°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec252835465765706863523731
Data source: Temperature data for Sheffield generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Sheffield

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

September Precipitation Trends in Sheffield

The chart displays monthly precipitation patterns in Sheffield, 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 Sheffield, September typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec95111103125141142130104105131106104
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sheffield

In Sheffield in September, humidity is 67%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket wrapping around you, making travel refreshing yet slightly muggy, as you navigate the sights with a pleasant, if slightly sticky, embrace.

September Average Humidity in Sheffield

This chart illustrates the average monthly humidity levels in Sheffield, 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 Sheffield is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sheffield

In Sheffield 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 Sheffield.

Maximum UV Index Levels in Sheffield for September

The chart shows the monthly maximum UV Index (UVI) for Sheffield 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 Sheffield typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Sheffield 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 Sheffield Compares to Other Months

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

This table compares monthly weather conditions in Sheffield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)95 mm (3.7 inches)89%moderate
February Weather-2°C (29°F)111 mm (4.4 inches)90%moderate
March Weather2°C (35°F)103 mm (4.0 inches)89%high
April Weather8°C (46°F)125 mm (4.9 inches)88%very high
May Weather14°C (58°F)141 mm (5.6 inches)80%very high
June Weather19°C (66°F)141 mm (5.6 inches)79%very high
July Weather21°C (70°F)130 mm (5.1 inches)74%very high
August Weather20°C (69°F)104 mm (4.1 inches)64%very high
September Weather17°C (63°F)105 mm (4.1 inches)67%very high
October Weather11°C (53°F)131 mm (5.2 inches)81%high
November Weather3°C (38°F)106 mm (4.2 inches)89%moderate
December Weather0°C (31°F)104 mm (4.1 inches)88%low

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