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September Weather in Mells, United Kingdom

Last updated: August 27, 2025

In Mells, United Kingdom, the average temperature for September is a comfortable 14°C (58°F), with minimums dipping to 2°C (35°F) and maximums reaching up to 28°C (83°F). Expect precipitation to total 56 mm (2.2 in) spread over 9 days, all while enjoying an average humidity of 79%.

September Temperature in Mells

In September in Mells, the average temperature is 14°C (58°F). Maximums can reach 28°C (83°F) while minimums can drop to as low as 2°C (35°F). This makes it an ideal time for travelers who appreciate mild weather and are prepared for varying temperatures.

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

The chart illustrates September temperature patterns in Mells, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mells, September typically has an average temperature of 14°C (58°F), with highs reaching up to 28°C (83°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec414345495460646258534644
Data source: Temperature data for Mells 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 Mells

In Mells in September, the precipitation amount is 56 mm (2.2 in) over a period of 9 days.

September Precipitation Trends in Mells

The chart displays monthly precipitation patterns in Mells, 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 Mells, September typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec5972785071757585561116798
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mells

In Mells in September, humidity is 79%. With an average temperature of 14°C (58°F), this humidity feels like an oppressive blanket wrapped around you, making even the mild temperatures feel heavier and more stifling for traveling.

September Average Humidity in Mells

This chart illustrates the average monthly humidity levels in Mells, 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 Mells is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mells

In Mells in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Mells, you can refer to this Hourly UV Index in Mells.

Maximum UV Index Levels in Mells for September

The chart shows the monthly maximum UV Index (UVI) for Mells 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 Mells typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Mells 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 Mells Compares to Other Months

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

This table compares monthly weather conditions in Mells, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)59 mm (2.3 inches)88%low
February Weather6°C (43°F)71 mm (2.8 inches)88%low
March Weather7°C (46°F)78 mm (3.1 inches)86%moderate
April Weather9°C (49°F)50 mm (2.0 inches)84%moderate
May Weather12°C (54°F)71 mm (2.8 inches)80%high
June Weather16°C (60°F)74 mm (2.9 inches)80%very high
July Weather18°C (64°F)75 mm (2.9 inches)70%very high
August Weather17°C (62°F)85 mm (3.3 inches)73%high
September Weather14°C (58°F)56 mm (2.2 inches)79%high
October Weather12°C (53°F)111 mm (4.4 inches)89%moderate
November Weather8°C (47°F)67 mm (2.7 inches)90%low
December Weather7°C (44°F)98 mm (3.8 inches)89%low

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