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December Weather in Killala, Ireland

Last updated: August 23, 2025

In December, the average temperature in Killala, Ireland is a cool 8°C (46°F). Temperatures can dip to a chilly 1°C (34°F) at night, while peaks can reach up to 13°C (55°F) during the day. Expect 152 mm (6.0 in) of precipitation spread across 22 days, and feel the average humidity linger at a high 84%. Stay prepared for a wet and brisk adventure!

December Temperature in Killala

In December, in Killala, the average temperature is 8°C (46°F). The maximum can reach 13°C (55°F), while the minimum can drop to as low as 1°C (34°F). It's advisable to pack warm clothing and prepare for cool conditions if you're planning to travel during this time.

December Weather in Killala: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Killala, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Killala, December typically has an average temperature of 8°C (46°F), with highs reaching up to 13°C (55°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec444445485255585856524846
Data source: Temperature data for Killala 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.

December Precipitation in Killala

In Killala in December, the total precipitation amount is 152 mm (6.0 in) spread over 22 days.

December Precipitation Trends in Killala

The chart displays monthly precipitation patterns in Killala, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Killala, December typically receives around 152 mm (6.0 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec1091411256879102107162114162148152
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Killala

In Killala in December humidity is 84%. With an average temperature of 8°C (46°F), this humidity feels like a chilly mist wrapping around you, making outdoor exploration cumbersome and layering your clothing a necessity for comfort.

December Average Humidity in Killala

This chart illustrates the average monthly humidity levels in Killala, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Killala is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%83%84%83%84%86%86%87%87%88%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Killala

In Killala in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Killala.

Maximum UV Index Levels in Killala for December

The chart shows the monthly maximum UV Index (UVI) for Killala in December, 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 December, the maximum UV index in Killala typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Killala December 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 December Weather in Killala Compares to Other Months

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

This table compares monthly weather conditions in Killala, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)109 mm (4.3 inches)84%low
February Weather7°C (44°F)141 mm (5.5 inches)84%low
March Weather7°C (45°F)125 mm (4.9 inches)83%moderate
April Weather9°C (48°F)68 mm (2.7 inches)84%moderate
May Weather11°C (52°F)79 mm (3.1 inches)83%high
June Weather13°C (55°F)102 mm (4.0 inches)83%very high
July Weather15°C (59°F)107 mm (4.2 inches)86%very high
August Weather15°C (59°F)162 mm (6.4 inches)86%high
September Weather13°C (56°F)114 mm (4.5 inches)87%moderate
October Weather11°C (52°F)162 mm (6.4 inches)87%moderate
November Weather9°C (48°F)148 mm (5.8 inches)88%low
December Weather8°C (46°F)152 mm (6.0 inches)84%low

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