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Portmarnock weather in January (Dublin County, Ireland)

How does the weather in Portmarnock usually fare in January? Our page offers a comprehensive look at the weather you can expect this month.

Temperatures

During January, Portmarnock usually has low temperatures and moderate rainfall. During January, the winter season is in full swing. Throughout the day, temperatures can rise to about 10°C. At night, they generally drop to 5°C. With moderate temperatures, January stands out as the chilliest month of the year.

Precipitation

Portmarnock in January usually receives moderate rainfall, averaging around 77 mm for the month. Historically, the month has about 18 days of rain.

Average sunshine

The month has fewer sunny days, with around 56 hours hours of sunshine, suitable for those who prefer less sun.

If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Portmarnock. July and August typically offer 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 January

Min TemperatureMin Temperature 5°C  
Max TemperatureMax Temperature 10°C  
Water TemperatureWater Temperature 10°C *  
Chance of RainChance of Rain 61%  
PrecipitationPrecipitation 77 mm  
Rainy daysRainy days 18 days  
HumidityHumidity 81% *  
WindspeedWindspeed 22 km/h *  
SunshineSunshine 56 hours *  
Percentage SunshinePercentage Sunshine 25% *  
* Data from: Dublin, Ireland (7 KM, 4 Miles).

Where to go in Ireland in January

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

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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 10°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
4/10
Walking
4/10
Camping
4/10
Outdoor sports
4/10

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.