Dundalk weather in December 2025

Expect daytime maximum temperatures of 46°F in Dundalk, Ireland in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 18 days with some rainfall and typically 3.4 inches of rainfall in the month.

  • 46°F maximum daytime temperature in December in Dundalk46
    46°F max day temperature
  • 1 hour of sunshine per day
  • 18 days with some rainfall in December in Dundalk18
    18 days with some rainfall
  • 37°F minimum night-time temperature in December in Dundalk37
    37°F min night temperature
  • 7 hours of daylight per day in December in Dundalk7
    7 hours of daylight per day
  • No heat & humidity in December in Dundalk0
    No heat & humidity
  • 3.4 inches monthly rainfall in December in Dundalk3.4
    3.4 inches of monthly rainfall
  • No UV (maximum) index in December in Dundalk0
    No UV (Maximum) Index UV index
  • 48°F sea temperature in December in Dundalk48
    48°F sea temperature

More about Dundalk

Dundalk by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ireland

Spabreaks.com: Latest offers on UK spa days

  • Check out latest special offers on spa days in the UK
  • Filter offers by price, destination, package & facilities
  • Book spa days in popular cities & country locations
Go to Spabreaks.com deal >>

View all Spabreaks.com offers

The December weather guide for Ireland (Dundalk) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

More about Ireland

How warm is it in Dundalk in December?

Daytime temperatures usually reach 48°F in Dundalk in December, falling to 37°F at night.

How sunny is it in Dundalk in December?

There are normally 2 hours of bright sunshine each day in Dundalk in December - that's 21% of daylight hours.

How warm is the sea around Dundalk in December?

The average sea temperature around Dundalk in December is 50°F.

Does it rain in Dundalk in December?

There are usually 17 days with some rain in Dundalk in December and the average monthly rainfall is 3.0 inches.

Dundalk December sunrise & sunset times

Browse the sunrise and sunset times for Dundalk in December 2025. Select a month to view Dundalk sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 08:21 16:08
Tuesday, 16th December 2025 08:39 16:03
Wednesday, 31st December 2025 08:45 16:13

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^