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September Weather in Ardglass, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Ardglass, United Kingdom is a mild 14°C (58°F). With minimums dipping to 8°C (46°F) and maximums reaching 19°C (67°F), it’s a pleasant time of year. Expect 71 mm (2.8 in) of precipitation spread over 14 days along with an average humidity of 88%.

September Temperature in Ardglass

In September in Ardglass, the average temperature is 14°C (58°F). Maximums can reach 19°C (67°F), and minimums can be as low as 8°C (46°F). This mild climate makes Ardglass an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates September temperature patterns in Ardglass, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ardglass, September typically has an average temperature of 14°C (58°F), with highs reaching up to 19°C (67°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec454545475256595957544946
Data source: Temperature data for Ardglass 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 Ardglass

In Ardglass in September, the precipitation amount is 71 mm (2.8 in) over a duration of 14 days.

September Precipitation Trends in Ardglass

The chart displays monthly precipitation patterns in Ardglass, 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 Ardglass, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec61887637506870987210311099
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ardglass

In Ardglass in September humidity is 88%. With an average temperature of 14°C (58°F), this humidity feels like a warm, damp embrace, making travel a bit uncomfortable as you may find yourself constantly sticky and in need of refreshing breaks.

September Average Humidity in Ardglass

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

In Ardglass 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 Ardglass.

Maximum UV Index Levels in Ardglass for September

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

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

This table compares monthly weather conditions in Ardglass, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)61 mm (2.4 inches)87%low
February Weather7°C (45°F)88 mm (3.5 inches)86%low
March Weather7°C (46°F)76 mm (3.0 inches)86%moderate
April Weather9°C (48°F)37 mm (1.5 inches)85%moderate
May Weather11°C (52°F)50 mm (2.0 inches)82%high
June Weather14°C (57°F)68 mm (2.7 inches)84%very high
July Weather15°C (60°F)70 mm (2.8 inches)86%very high
August Weather15°C (60°F)98 mm (3.8 inches)86%high
September Weather14°C (58°F)71 mm (2.8 inches)88%moderate
October Weather12°C (54°F)102 mm (4.0 inches)89%moderate
November Weather10°C (50°F)110 mm (4.3 inches)90%low
December Weather8°C (47°F)99 mm (3.9 inches)86%low

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