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September Weather in Slaley, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Slaley, United Kingdom is a mild 13°C (55°F), with lows dipping to 2°C (36°F) and highs reaching up to 26°C (80°F). Expect 73 mm (2.9 in) of precipitation over 14 days, contributing to an average humidity of 87%. Whether you're exploring the local sights or enjoying the cozy atmosphere, this month brings a unique charm to Slaley!

September Temperature in Slaley

In September in Slaley, the average temperature is 13°C (55°F). Maximum temperatures can reach 26°C (80°F), and minimums can drop as low as 2°C (36°F). Be sure to pack layers for your trip, as the weather can vary significantly throughout the day.

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

The chart illustrates September temperature patterns in Slaley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slaley, September typically has an average temperature of 13°C (55°F), with highs reaching up to 26°C (80°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec394042455157605955494440
Data source: Temperature data for Slaley 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 Slaley

In Slaley in September, the total precipitation amount is 73 mm (2.9 in) over the course of 14 days.

September Precipitation Trends in Slaley

The chart displays monthly precipitation patterns in Slaley, 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 Slaley, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec5892824065868810073946777
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Slaley

In Slaley in September, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.

September Average Humidity in Slaley

This chart illustrates the average monthly humidity levels in Slaley, 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 Slaley is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%86%84%83%85%83%82%87%89%90%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Slaley

In Slaley in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Slaley.

Maximum UV Index Levels in Slaley for September

The chart shows the monthly maximum UV Index (UVI) for Slaley 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 Slaley typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568865321
Data source: Slaley 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 Slaley Compares to Other Months

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

This table compares monthly weather conditions in Slaley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)58 mm (2.3 inches)89%low
February Weather4°C (40°F)92 mm (3.6 inches)87%low
March Weather6°C (42°F)82 mm (3.2 inches)85%moderate
April Weather7°C (45°F)40 mm (1.6 inches)84%moderate
May Weather11°C (51°F)65 mm (2.6 inches)83%high
June Weather14°C (57°F)86 mm (3.4 inches)85%very high
July Weather15°C (60°F)88 mm (3.5 inches)83%very high
August Weather15°C (59°F)100 mm (4.0 inches)82%high
September Weather13°C (55°F)73 mm (2.9 inches)87%moderate
October Weather10°C (50°F)94 mm (3.7 inches)89%moderate
November Weather6°C (44°F)67 mm (2.7 inches)90%low
December Weather4°C (40°F)77 mm (3.0 inches)88%low

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