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September Weather in Ardrahan, Ireland

Last updated: August 23, 2025

In September, the average temperature in Ardrahan, Ireland hovers around 13°C (56°F). Expect a range of temperatures, with a minimum of 1°C (34°F) and a pleasant maximum reaching 26°C (79°F). During this time, precipitation can amount to 80 mm (3.1 in) over approximately 15 days, contributing to a high average humidity of 88%. Prepare for a typically moist and mild month!

September Temperature in Ardrahan

In September in Ardrahan, the average temperature is 13°C (56°F). Maximums can reach 26°C (79°F), and minimums can be as low as 1°C (34°F). This pleasant range makes Ardrahan an ideal destination for travelers seeking comfortable weather and outdoor activities.

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

The chart illustrates September temperature patterns in Ardrahan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ardrahan, September typically has an average temperature of 13°C (56°F), with highs reaching up to 26°C (79°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec434344485357605956514644
Data source: Temperature data for Ardrahan 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 Ardrahan

In Ardrahan in September, the precipitation amount is 80 mm (3.1 in) over a span of 15 days.

September Precipitation Trends in Ardrahan

The chart displays monthly precipitation patterns in Ardrahan, 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 Ardrahan, September typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec75121104617180841188010792108
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ardrahan

In Ardrahan 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 Ardrahan

This chart illustrates the average monthly humidity levels in Ardrahan, 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 Ardrahan is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%86%83%83%85%85%88%91%92%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ardrahan

In Ardrahan 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 Ardrahan.

Maximum UV Index Levels in Ardrahan for September

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

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

This table compares monthly weather conditions in Ardrahan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)75 mm (3.0 inches)88%low
February Weather6°C (44°F)121 mm (4.8 inches)88%low
March Weather7°C (45°F)104 mm (4.1 inches)87%moderate
April Weather9°C (48°F)61 mm (2.4 inches)86%moderate
May Weather12°C (53°F)71 mm (2.8 inches)83%high
June Weather14°C (57°F)79 mm (3.1 inches)83%very high
July Weather16°C (60°F)84 mm (3.3 inches)85%very high
August Weather15°C (59°F)118 mm (4.7 inches)85%high
September Weather13°C (56°F)80 mm (3.1 inches)88%moderate
October Weather10°C (51°F)107 mm (4.2 inches)91%moderate
November Weather8°C (46°F)92 mm (3.6 inches)92%low
December Weather7°C (44°F)108 mm (4.3 inches)89%low

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