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Weather in January
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Weather in January in Dublin County

Thinking about venturing to Dublin County this January and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Dublin County in January?

Dublin County is a region in Ireland. January in Dublin County generally has cold temperatures, with moderate precipitation. The month of January is in the winter season.

Temperatures

You can expect cold maximum daytime temperatures of around 9°C and nighttime temperatures around 4°C in Dublin. On average, January is the coldest month of the year in Dublin County. So be prepared and make sure to pack winter cloths.

Precipitation

In January, precipitation varies across different areas. From moderate rainfall in Dublin with an average of 71 mm to moderate rainfall in Dun Laoghaire with 80 mm.

Average sunshine

Most cities witness limited sunny days, expect roughly 56 hours of sunlight in Dublin. This low amount of sunlight is perfect for those who lean towards dimmer, cloudier weather rather than intense sunny days.

For a closer look at January's conditions in Dublin County, see the map below. For a more detailed look at Dublin County's yearly weather, check out our Dublin County climate page.

Where to go in Dublin County in January

Find more information for the most popular destinations in the Dublin County on the map below. Click on a destination dot for more detailes.

Weather conditions Weather
Temperatures
Precipitation
Map not visible? Whoops sorry! Please refresh the page.
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).

Popular destinations

What is the weather like in January for the 5 most popular destinations in Dublin County?

Dublin

In January Dublin generally has low temperatures with maximum daytime temperatures around 9°C, minimum nighttime temperatures around 4°C and moderate monthly rainfall. So on average the conditions are poor that month.

Dublin
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   December December
<<  
10°C 
4°C 
51 hours 
77 mm 
17 days 
poor 
January January
9°C 
4°C 
56 hours 
71 mm 
18 days 
poor 
February   >> February
>>  
10°C 
4°C 
71 hours 
64 mm 
15 days 
poor 
Climate in Dublin

Swords

In January Swords generally has low temperatures with maximum daytime temperatures around 9°C, minimum nighttime temperatures around 4°C and moderate monthly rainfall. So on average the conditions are poor that month.

Swords
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   December December
<<  
10°C 
5°C 
51 hours 
79 mm 
17 days 
poor 
January January
9°C 
4°C 
56 hours 
72 mm 
18 days 
poor 
February   >> February
>>  
10°C 
4°C 
71 hours 
65 mm 
15 days 
poor 
Climate in Swords

Dun Laoghaire

In January Dun Laoghaire generally has low temperatures with maximum daytime temperatures around 9°C, minimum nighttime temperatures around 4°C and moderate monthly rainfall. So on average the conditions are poor that month.

Dun Laoghaire
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   December December
<<  
10°C 
5°C 
51 hours 
88 mm 
17 days 
poor 
January January
9°C 
4°C 
56 hours 
80 mm 
18 days 
poor 
February   >> February
>>  
9°C 
4°C 
71 hours 
73 mm 
15 days 
poor 
Climate in Dun Laoghaire

Rathgar

In January Rathgar generally has low temperatures with maximum daytime temperatures around 9°C, minimum nighttime temperatures around 3°C and moderate monthly rainfall. So on average the conditions are poor that month.

Rathgar
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   December December
<<  
9°C 
4°C 
51 hours 
80 mm 
17 days 
poor 
January January
9°C 
3°C 
56 hours 
73 mm 
18 days 
poor 
February   >> February
>>  
9°C 
3°C 
71 hours 
68 mm 
15 days 
poor 
Climate in Rathgar

Cloghran

In January Cloghran generally has low temperatures with maximum daytime temperatures around 9°C, minimum nighttime temperatures around 4°C and moderate monthly rainfall. So on average the conditions are poor that month.

Cloghran
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   December December
<<  
10°C 
4°C 
51 hours 
79 mm 
17 days 
poor 
January January
9°C 
4°C 
56 hours 
72 mm 
18 days 
poor 
February   >> February
>>  
10°C 
4°C 
71 hours 
66 mm 
15 days 
poor 
Climate in Cloghran

Is your destination not in the list? Have a look at other destinations in Dublin County, in Ireland.

Is January the best time to visit Dublin County?

In our view, January might not be the best time to travel to Dublin County with often poor weather in Dublin.

Generally speaking, the best visiting conditions can be found in July and August offering mostly perfect weather in Dublin. On the other hand, the months of January, February and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Dublin County. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      

    • 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.