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September Weather in Cullybackey, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Cullybackey, United Kingdom hovers around 13°C (56°F). Expect a minimum of 3°C (39°F) and a maximum of 20°C (69°F). With precipitation totaling 82 mm (3.2 in) across 18 days, the air feels quite humid, boasting an average humidity of 88%. Prepare for a typically wet and mild month ahead!

September Temperature in Cullybackey

In September in Cullybackey, the average temperature is 13°C (56°F), with maximums reaching 20°C (69°F) and minimums dropping as low as 3°C (39°F). It's a great time to visit if you enjoy mild weather with a mix of cool and warm days.

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

The chart illustrates September temperature patterns in Cullybackey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cullybackey, September typically has an average temperature of 13°C (56°F), with highs reaching up to 20°C (69°F) and lows dropping to around 3°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec424243465156585855514644
Data source: Temperature data for Cullybackey 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 Cullybackey

In Cullybackey in September, the precipitation amount is 82 mm (3.2 in) over a span of 18 days.

September Precipitation Trends in Cullybackey

The chart displays monthly precipitation patterns in Cullybackey, 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 Cullybackey, September typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec691008448709410013182106105103
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cullybackey

In Cullybackey in September, humidity is 88%. With an average temperature of 13°C (56°F), this humidity feels like a thick, warm blanket wrapping around you, making outdoor adventures sticky and challenging.

September Average Humidity in Cullybackey

This chart illustrates the average monthly humidity levels in Cullybackey, 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 Cullybackey is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cullybackey

In Cullybackey 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 Cullybackey.

Maximum UV Index Levels in Cullybackey for September

The chart shows the monthly maximum UV Index (UVI) for Cullybackey 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 Cullybackey typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568865311
Data source: Cullybackey 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 Cullybackey Compares to Other Months

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

This table compares monthly weather conditions in Cullybackey, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)69 mm (2.7 inches)87%low
February Weather6°C (43°F)100 mm (4.0 inches)86%low
March Weather6°C (44°F)84 mm (3.3 inches)86%moderate
April Weather8°C (47°F)48 mm (1.9 inches)85%moderate
May Weather11°C (51°F)70 mm (2.8 inches)82%high
June Weather13°C (56°F)94 mm (3.7 inches)84%very high
July Weather15°C (59°F)99 mm (3.9 inches)86%very high
August Weather15°C (58°F)131 mm (5.2 inches)86%high
September Weather13°C (56°F)82 mm (3.2 inches)88%moderate
October Weather11°C (51°F)106 mm (4.2 inches)89%moderate
November Weather8°C (47°F)105 mm (4.1 inches)90%low
December Weather6°C (44°F)103 mm (4.1 inches)86%low

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