Portmarnock weather in December (Dublin County, Ireland)

Can you expect sunny skies in Portmarnock in December? Here’s a detailed forecast of the month’s weather patterns.

Temperatures

In December, Portmarnock tends to experience low temperatures and moderate rainfall. December marks the winter season. During the daylight hours, temperatures often reach 10°C. After dark they usually decrease to around 5°C.

Precipitation

Portmarnock in December usually receives moderate rainfall, averaging around 85 mm for the month. Expect around 17 days of rain based on historical data.

Average sunshine

The area sees fewer sunny days, with a projection of about 51 hours of sunshine. This reduced sunlight makes it ideal for those who prefer cooler, overcast conditions over bright sunny days.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Portmarnock. July and August generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Portmarnock climate page with graphs.

 

Portmarnock, monthly averages in December

Min Temperature 5°C  

Max Temperature 10°C  

Water Temperature 11°C *  

Chance of Rain 57%  

Precipitation 85 mm  

Rainy days 17 days  

Humidity 83% *  

Windspeed 22 km/h *  

Sunshine 51 hours *  

Percentage Sunshine 23% *  

* Data from: Dublin, Ireland (7 KM, 4 Miles).

Where to go in Ireland in December

Find out more about the weather in Ireland and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature. With a water temperature of around 11°C there is no need to bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

6/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Portmarnock.

Our site offers climate and forecast data for every country in the world. Are you going to Ireland? On this website you can find 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.