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December Weather in Navan, Ireland

Last updated: August 23, 2025

In December, the average temperature in Navan, Ireland hovers around 6°C (43°F), with a minimum drop to -3°C (27°F) and a maximum rise to 13°C (56°F). Expect about 87 mm (3.4 in) of precipitation over 13 days, contributing to an average humidity level of 84%. Stay prepared for a brisk and damp month!

December Temperature in Navan

In December in Navan, the average temperature is 6°C (43°F), with maximums reaching up to 13°C (56°F) and minimums dropping as low as -3°C (27°F). Be sure to pack layers and prepare for chilly evenings if you're planning to visit during this time!

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

The chart illustrates December temperature patterns in Navan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Navan, December typically has an average temperature of 6°C (43°F), with highs reaching up to 13°C (56°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344475358615956514643
Data source: Temperature data for Navan 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 Navan

In Navan in December, the precipitation amount is 87 mm (3.4 in) spread over 13 days.

December Precipitation Trends in Navan

The chart displays monthly precipitation patterns in Navan, 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 Navan, December typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec5285794768777310773778287
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Navan

In Navan in December, humidity is 84%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that penetrates your clothing, making outdoor excursions uncomfortable and prompting travelers to seek refuge indoors or find warm, sheltered spots to enjoy their surroundings.

December Average Humidity in Navan

This chart illustrates the average monthly humidity levels in Navan, 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 Navan is approximately 84%, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Navan

In Navan 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 Navan.

Maximum UV Index Levels in Navan for December

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

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

This table compares monthly weather conditions in Navan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)52 mm (2.0 inches)85%low
February Weather6°C (43°F)85 mm (3.3 inches)86%low
March Weather7°C (44°F)79 mm (3.1 inches)86%moderate
April Weather9°C (48°F)47 mm (1.8 inches)85%moderate
May Weather12°C (53°F)68 mm (2.7 inches)83%high
June Weather14°C (58°F)77 mm (3.0 inches)85%very high
July Weather16°C (61°F)73 mm (2.9 inches)86%very high
August Weather15°C (60°F)107 mm (4.2 inches)85%high
September Weather13°C (56°F)73 mm (2.9 inches)86%moderate
October Weather10°C (51°F)77 mm (3.0 inches)87%moderate
November Weather8°C (46°F)82 mm (3.2 inches)86%low
December Weather6°C (43°F)87 mm (3.4 inches)84%low

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