nomadseason

September Weather in Carnlough, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Carnlough, United Kingdom hovers around 13°C (56°F). Expect a chilly minimum of 4°C (39°F), while highs can reach a comfortable 20°C (69°F). Be prepared for some wet days, with an average precipitation of 81 mm (3.2 in) spread over 17 days. With an average humidity of 88%, the air can feel quite moist, so don’t forget your umbrella!

September Temperature in Carnlough

In September in Carnlough, the average temperature is 13°C (56°F), with maximums reaching up to 20°C (69°F) and minimums dropping to as low as 4°C (39°F). It's a pleasant time for traveling, making it ideal for exploring the sights while enjoying mild weather.

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

The chart illustrates September temperature patterns in Carnlough, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carnlough, 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 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec424244465156585855514744
Data source: Temperature data for Carnlough generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Carnlough

In Carnlough, in September, the precipitation amount is 81 mm (3.2 in), occurring over a span of 17 days.

September Precipitation Trends in Carnlough

The chart displays monthly precipitation patterns in Carnlough, 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 Carnlough, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec6910182456791991288110610399
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Carnlough

In Carnlough 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 Carnlough

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

In Carnlough 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 Carnlough.

Maximum UV Index Levels in Carnlough for September

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

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

This table compares monthly weather conditions in Carnlough, 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)101 mm (4.0 inches)86%low
March Weather6°C (44°F)82 mm (3.2 inches)86%moderate
April Weather8°C (47°F)44 mm (1.8 inches)85%moderate
May Weather11°C (51°F)67 mm (2.6 inches)82%high
June Weather13°C (56°F)91 mm (3.6 inches)84%very high
July Weather15°C (59°F)99 mm (3.9 inches)86%very high
August Weather15°C (58°F)128 mm (5.0 inches)86%high
September Weather13°C (56°F)81 mm (3.2 inches)88%moderate
October Weather11°C (51°F)106 mm (4.2 inches)89%moderate
November Weather8°C (47°F)103 mm (4.0 inches)90%low
December Weather6°C (44°F)99 mm (3.9 inches)86%low

Compare Carnlough's Climate with Cities Worldwide