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September Weather in Northallerton, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Northallerton, United Kingdom hovers around 13°C (56°F). Expect lows of 2°C (36°F) and highs reaching 27°C (81°F). Be prepared for some rain, as the area sees an average precipitation of 69 mm (2.7 in) over 11 days, all while maintaining a notable humidity level of 87%.

September Temperature in Northallerton

In September in Northallerton, the average temperature is a comfortable 13°C (56°F), with maximums potentially reaching 27°C (81°F) and minimums dropping as low as 2°C (36°F). This makes it an ideal time for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates September temperature patterns in Northallerton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Northallerton, September typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (81°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec394143465258616056504541
Data source: Temperature data for Northallerton 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 Northallerton

In Northallerton in September, the total precipitation amount is 69 mm (2.7 in) spread across 11 days.

September Precipitation Trends in Northallerton

The chart displays monthly precipitation patterns in Northallerton, 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 Northallerton, September typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec537970376082757669866076
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Northallerton

In Northallerton 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 Northallerton

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

In Northallerton 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 Northallerton.

Maximum UV Index Levels in Northallerton for September

The chart shows the monthly maximum UV Index (UVI) for Northallerton 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 Northallerton typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Northallerton 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 Northallerton Compares to Other Months

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

This table compares monthly weather conditions in Northallerton, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)53 mm (2.1 inches)89%low
February Weather5°C (41°F)79 mm (3.1 inches)87%low
March Weather6°C (43°F)70 mm (2.7 inches)85%moderate
April Weather8°C (46°F)37 mm (1.4 inches)84%moderate
May Weather11°C (52°F)60 mm (2.4 inches)83%high
June Weather14°C (58°F)82 mm (3.2 inches)85%very high
July Weather16°C (61°F)75 mm (2.9 inches)83%very high
August Weather16°C (60°F)76 mm (3.0 inches)82%high
September Weather13°C (56°F)69 mm (2.7 inches)87%moderate
October Weather10°C (51°F)86 mm (3.4 inches)89%moderate
November Weather7°C (45°F)60 mm (2.4 inches)90%low
December Weather5°C (41°F)75 mm (3.0 inches)88%low

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