Daytime highs, nighttime lows and the warmest cities across Ireland this December.
Ireland, experiences low average maximum daytime temperatures in December, ranging from 9°C (48°F) in Laghy to 11°C (52°F) in Portmagee. Nighttime temperatures generally drop to 7°C (45°F) in Portmagee and 3°C (37°F) in Laghy. December is a winter month.
Discover the typical December temperatures for the most popular locations of Ireland on the map below. Detailed insights are just a click away.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Ireland.
Marker color shows the average daytime high temperature in December: blue is cold, red is hot.
Drill down to December weather for any region in Ireland.
Pick a city to see its December weather averages.
Average daytime highs in Ireland during December reach about 10°C (50°F) in Dublin.
Nighttime temperatures in Dublin typically drop to around 4°C (39°F) in December.
Based on our systematic data collection, Portmagee has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 11°C (52°F), while at night it goes down to an approximate temperature of 7°C (45°F).
The coldest city in December in Ireland is Laghy when we check our database. The maximum daytime temperatures are around 9°C (48°F) and minimum nighttime temperatures fall around 3°C (37°F).
Most cities witness limited sunny days; expect roughly 51 hours of sunlight in Dublin. This subdued sunlight is perfect for those who prefer cooler, cloudier weather rather than intense sunny days.
The water temperature averages approximately 11°C (52°F) in Dublin this month, so not the best month to swim.
We have much more information about the climate in Ireland.
Weather and climate has detailed information for every country in the world. Are you going to Ireland? Get detailed historical weather averages for many cities in Ireland.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
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