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September Weather in Brackley, United Kingdom

Last updated: August 27, 2025

In Brackley, United Kingdom, the average temperature in September hovers around 15°C (58°F), with a comfortable range that can dip to a chilly 3°C (37°F) at night and rise to a warm 29°C (85°F) during the day. Expect 56 mm (2.2 in) of precipitation spread across about 10 days, contributing to an average humidity of 82%. Whether you're exploring the sights or enjoying the local cuisine, the weather is sure to add to your experience!

September Temperature in Brackley

In September in Brackley, the average temperature is 15°C (58°F). Maximums can reach 29°C (85°F), while minimums can drop as low as 3°C (37°F). It’s advisable to pack layers for your trip to ensure comfort throughout the varying temperatures.

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

The chart illustrates September temperature patterns in Brackley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brackley, September typically has an average temperature of 15°C (58°F), with highs reaching up to 29°C (85°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245485461646358524643
Data source: Temperature data for Brackley 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 Brackley

In Brackley in September, the precipitation amount is 56 mm (2.2 in) over the course of 10 days.

September Precipitation Trends in Brackley

The chart displays monthly precipitation patterns in Brackley, 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 Brackley, September typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec525162386573677156925982
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Brackley

In Brackley in September humidity is 82%. With an average temperature of 15°C (58°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor exploration a bit uncomfortable and causing you to sweat lightly even during mild activities.

September Average Humidity in Brackley

This chart illustrates the average monthly humidity levels in Brackley, 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 Brackley is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Brackley

In Brackley 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 Brackley, you can refer to this Hourly UV Index in Brackley.

Maximum UV Index Levels in Brackley for September

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

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

This table compares monthly weather conditions in Brackley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)52 mm (2.1 inches)91%low
February Weather6°C (43°F)51 mm (2.0 inches)89%low
March Weather7°C (45°F)62 mm (2.4 inches)86%moderate
April Weather9°C (49°F)38 mm (1.5 inches)85%moderate
May Weather12°C (54°F)65 mm (2.6 inches)79%high
June Weather16°C (61°F)73 mm (2.9 inches)80%very high
July Weather18°C (65°F)67 mm (2.6 inches)71%very high
August Weather17°C (63°F)71 mm (2.8 inches)76%high
September Weather15°C (58°F)56 mm (2.2 inches)82%high
October Weather11°C (52°F)92 mm (3.6 inches)90%moderate
November Weather8°C (46°F)59 mm (2.3 inches)92%low
December Weather6°C (43°F)82 mm (3.2 inches)92%low

Compare Brackley's Climate with Cities Worldwide