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September Weather in Dunleer, Ireland

Last updated: August 23, 2025

In September, the average temperature in Dunleer, Ireland hovers around 14°C (57°F), with a range that dips as low as 3°C (37°F) and peaks at 23°C (73°F). Expect 71 mm (2.8 in) of precipitation spread over approximately 11 days, contributing to the region's average humidity of 86%.

September Temperature in Dunleer

In September in Dunleer, the average temperature is 14°C (57°F). Maximums can reach 23°C (73°F) and minimums can drop as low as 3°C (37°F). This mild weather makes Dunleer a pleasant destination for travelers seeking comfortable conditions for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Dunleer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dunleer, September typically has an average temperature of 14°C (57°F), with highs reaching up to 23°C (73°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec424345485358616057514644
Data source: Temperature data for Dunleer 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 Dunleer

In Dunleer in September, the precipitation amount is 71 mm (2.8 in) distributed over 11 days.

September Precipitation Trends in Dunleer

The chart displays monthly precipitation patterns in Dunleer, 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 Dunleer, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec5079764564737310471768385
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dunleer

In Dunleer in September humidity is 86%. With an average temperature of 14°C (57°F), this humidity feels like a heavy blanket enveloping you, making travel feel oppressive and uncomfortably sticky.

September Average Humidity in Dunleer

This chart illustrates the average monthly humidity levels in Dunleer, 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 Dunleer is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dunleer

In Dunleer 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 Dunleer.

Maximum UV Index Levels in Dunleer for September

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

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

This table compares monthly weather conditions in Dunleer, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)50 mm (2.0 inches)85%low
February Weather6°C (44°F)79 mm (3.1 inches)86%low
March Weather7°C (45°F)76 mm (3.0 inches)86%moderate
April Weather9°C (48°F)44 mm (1.8 inches)85%moderate
May Weather12°C (53°F)64 mm (2.5 inches)83%high
June Weather15°C (59°F)73 mm (2.9 inches)85%very high
July Weather16°C (62°F)73 mm (2.9 inches)86%very high
August Weather16°C (60°F)104 mm (4.1 inches)85%high
September Weather14°C (57°F)71 mm (2.8 inches)86%moderate
October Weather11°C (52°F)76 mm (3.0 inches)87%moderate
November Weather8°C (47°F)83 mm (3.3 inches)86%low
December Weather6°C (44°F)85 mm (3.4 inches)84%low

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