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September Weather in Dundonald, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Dundonald, United Kingdom is a pleasant 14°C (57°F). Expect a minimum of 6°C (43°F) and a maximum of 21°C (70°F), making it ideal for various outdoor activities. However, be prepared for some rain, as the region receives an average precipitation of 82 mm (3.2 in) over 16 days. With an average humidity of 88%, the air can feel a bit muggy, so pack accordingly!

September Temperature in Dundonald

In September in Dundonald, the average temperature is 14°C (57°F), with maximums reaching 21°C (70°F) and minimums dropping as low as 6°C (43°F). This mild weather makes it an ideal time for travelers to explore the sights and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Dundonald, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dundonald, September typically has an average temperature of 14°C (57°F), with highs reaching up to 21°C (70°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec434345475256595956524845
Data source: Temperature data for Dundonald 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 Dundonald

In Dundonald in September, the total precipitation amount is 82 mm (3.2 in) distributed over 16 days.

September Precipitation Trends in Dundonald

The chart displays monthly precipitation patterns in Dundonald, 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 Dundonald, September typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec6698844364819011682107110103
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dundonald

In Dundonald in September humidity is 88%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and giving a sense of stickiness that can drain your energy quickly while exploring.

September Average Humidity in Dundonald

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

In Dundonald 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 Dundonald.

Maximum UV Index Levels in Dundonald for September

The chart shows the monthly maximum UV Index (UVI) for Dundonald 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 Dundonald typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123578865321
Data source: Dundonald 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 Dundonald Compares to Other Months

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

This table compares monthly weather conditions in Dundonald, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)66 mm (2.6 inches)87%low
February Weather6°C (44°F)98 mm (3.8 inches)86%low
March Weather7°C (45°F)84 mm (3.3 inches)86%moderate
April Weather8°C (47°F)43 mm (1.7 inches)85%moderate
May Weather11°C (52°F)64 mm (2.5 inches)82%high
June Weather13°C (57°F)81 mm (3.2 inches)84%very high
July Weather15°C (59°F)89 mm (3.5 inches)86%very high
August Weather15°C (59°F)116 mm (4.6 inches)86%high
September Weather14°C (57°F)82 mm (3.2 inches)88%moderate
October Weather11°C (53°F)107 mm (4.2 inches)89%moderate
November Weather9°C (48°F)110 mm (4.3 inches)90%low
December Weather7°C (45°F)103 mm (4.1 inches)86%low

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