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September Weather in Hartburn, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Hartburn, United Kingdom hovers around 13°C (56°F). Visitors can expect a minimum of 4°C (40°F) to a comfortable maximum of 24°C (76°F). With an average precipitation of 65 mm (2.6 in) spread over 13 days, it's wise to pack an umbrella. The air is quite humid, with an average humidity level of 87%, contributing to the region's unique climate.

September Temperature in Hartburn

In September in Hartburn, the average temperature is 13°C (56°F). The maximum can reach 24°C (76°F), while the minimum can drop to as low as 4°C (40°F). This makes for a pleasant time to explore outdoor attractions, so be sure to pack layers for your travel adventures!

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

The chart illustrates September temperature patterns in Hartburn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartburn, September typically has an average temperature of 13°C (56°F), with highs reaching up to 24°C (76°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec414143455156605955514542
Data source: Temperature data for Hartburn 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 Hartburn

In Hartburn in September, the precipitation amount is 65 mm (2.6 in) spread over a duration of 13 days.

September Precipitation Trends in Hartburn

The chart displays monthly precipitation patterns in Hartburn, 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 Hartburn, September typically receives around 65 mm (2.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec558474355479849265937680
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hartburn

In Hartburn in September humidity is 87%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it challenging to explore comfortably.

September Average Humidity in Hartburn

This chart illustrates the average monthly humidity levels in Hartburn, 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 Hartburn 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 Hartburn

In Hartburn 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 Hartburn.

Maximum UV Index Levels in Hartburn for September

The chart shows the monthly maximum UV Index (UVI) for Hartburn 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 Hartburn typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568865321
Data source: Hartburn 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 Hartburn Compares to Other Months

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

This table compares monthly weather conditions in Hartburn, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)55 mm (2.2 inches)89%low
February Weather5°C (41°F)84 mm (3.3 inches)87%low
March Weather6°C (43°F)74 mm (2.9 inches)85%moderate
April Weather7°C (46°F)34 mm (1.4 inches)84%moderate
May Weather10°C (51°F)54 mm (2.1 inches)83%high
June Weather13°C (56°F)79 mm (3.1 inches)85%very high
July Weather15°C (60°F)84 mm (3.3 inches)83%very high
August Weather15°C (59°F)92 mm (3.6 inches)82%high
September Weather13°C (56°F)65 mm (2.6 inches)87%moderate
October Weather10°C (51°F)93 mm (3.6 inches)89%moderate
November Weather7°C (46°F)76 mm (3.0 inches)90%low
December Weather5°C (42°F)80 mm (3.2 inches)88%low

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