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September Weather in Alston, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Alston, United Kingdom hovers around a pleasant 12°C (53°F). However, be prepared for a temperature range that can dip to a chilly 1°C (34°F) and rise to a warm 25°C (78°F). With precipitation totaling 92 mm (3.6 in) over the course of 15 days, and an average humidity level of 88%, this month can feel quite damp. Stay ready for varying weather conditions!

September Temperature in Alston

In September in Alston, the average temperature is 12°C (53°F), with maximums reaching 25°C (78°F) and minimums dropping as low as 1°C (34°F). This makes it an ideal time for travelers seeking mild weather and diverse outdoor activities.

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

The chart illustrates September temperature patterns in Alston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alston, September typically has an average temperature of 12°C (53°F), with highs reaching up to 25°C (78°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec373841445055585753484239
Data source: Temperature data for Alston 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 Alston

In Alston in September, the precipitation amount is 92 mm (3.6 in) distributed over 15 days.

September Precipitation Trends in Alston

The chart displays monthly precipitation patterns in Alston, 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 Alston, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec791231084868101981179212084101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Alston

In Alston in September humidity is 88%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that clings to your skin, making it crucial to dress in layers and stay prepared for the discomfort while exploring.

September Average Humidity in Alston

This chart illustrates the average monthly humidity levels in Alston, 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 Alston is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%85%81%83%82%82%88%90%92%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Alston

In Alston 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 Alston.

Maximum UV Index Levels in Alston for September

The chart shows the monthly maximum UV Index (UVI) for Alston 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 Alston typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568875321
Data source: Alston 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 Alston Compares to Other Months

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

This table compares monthly weather conditions in Alston, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)79 mm (3.1 inches)90%low
February Weather4°C (39°F)123 mm (4.8 inches)88%low
March Weather5°C (41°F)108 mm (4.3 inches)86%moderate
April Weather7°C (44°F)48 mm (1.9 inches)85%moderate
May Weather10°C (50°F)68 mm (2.7 inches)80%high
June Weather13°C (56°F)101 mm (4.0 inches)83%very high
July Weather14°C (58°F)98 mm (3.8 inches)82%very high
August Weather14°C (57°F)117 mm (4.6 inches)82%high
September Weather12°C (53°F)92 mm (3.6 inches)88%moderate
October Weather9°C (48°F)120 mm (4.7 inches)90%moderate
November Weather6°C (43°F)84 mm (3.3 inches)92%low
December Weather4°C (39°F)101 mm (4.0 inches)89%low

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