Dublin

Dublin County Weather in January

Average temperatures, rainfall, sunshine and the best places to visit in Dublin County, Ireland in January.

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Dublin Swords Dun Laoghaire Rathgar

Considering a trip to Dublin County, Ireland this January and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Dublin County in January

Dublin County, Ireland 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 (48°F) and nighttime temperatures around 4°C (39°F) in Dublin. On average, January is the coldest month of the year in Dublin County, Ireland. So be prepared and make sure to pack winter cloths.

For specific regional insights in Dublin County, Ireland, refer to the map provided below.

Precipitation

In January, precipitation varies across different areas. From moderate rainfall in Dublin with an average of 71 mm (2.8 in) to moderate rainfall in Dalkey with 81 mm (3.2 in).

Average sunshine

Many places experience limited sunshine during this period. Dublin receives around 56 hours of sunlight. If you prefer more sunny conditions, our weather planner can help you explore other destinations.

Explore Dublin County by month

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

Best Places to Visit in Dublin County in January

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Dublin County.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Dublin County

What is the weather like in January for some of the most popular destinations in Dublin County, Ireland?

Temperature range in Dublin County (January)

Precipitation variation in Dublin County (January)

Dublin

In January Dublin generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
10°C (50°F)
9°C (48°F)
10°C (50°F)
Min temperature
4°C (39°F)
4°C (39°F)
4°C (39°F)
Monthly sun hours
51 hours
56 hours
71 hours
Monthly rainfall
77 mm (3 in)
71 mm (2.8 in)
64 mm (2.5 in)
Monthly rainy days
17 days
18 days
15 days
Weather conditions
poor
poor
poor
Climate in Dublin →

Swords

In January Swords generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
10°C (50°F)
9°C (48°F)
10°C (50°F)
Min temperature
5°C (41°F)
4°C (39°F)
4°C (39°F)
Monthly sun hours
51 hours
56 hours
71 hours
Monthly rainfall
79 mm (3.1 in)
72 mm (2.8 in)
65 mm (2.6 in)
Monthly rainy days
17 days
18 days
15 days
Weather conditions
poor
poor
poor
Climate in Swords →

Dun Laoghaire

In January Dun Laoghaire generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
10°C (50°F)
9°C (48°F)
9°C (48°F)
Min temperature
5°C (41°F)
4°C (39°F)
4°C (39°F)
Monthly sun hours
51 hours
56 hours
71 hours
Monthly rainfall
88 mm (3.5 in)
80 mm (3.1 in)
73 mm (2.9 in)
Monthly rainy days
17 days
18 days
15 days
Weather conditions
poor
poor
poor
Climate in Dun Laoghaire →

Rathgar

In January Rathgar generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
9°C (48°F)
9°C (48°F)
9°C (48°F)
Min temperature
4°C (39°F)
3°C (37°F)
3°C (37°F)
Monthly sun hours
51 hours
56 hours
71 hours
Monthly rainfall
80 mm (3.1 in)
73 mm (2.9 in)
68 mm (2.7 in)
Monthly rainy days
17 days
18 days
15 days
Weather conditions
poor
poor
poor
Climate in Rathgar →

Cloghran

In January Cloghran generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
10°C (50°F)
9°C (48°F)
10°C (50°F)
Min temperature
4°C (39°F)
4°C (39°F)
4°C (39°F)
Monthly sun hours
51 hours
56 hours
71 hours
Monthly rainfall
79 mm (3.1 in)
72 mm (2.8 in)
66 mm (2.6 in)
Monthly rainy days
17 days
18 days
15 days
Weather conditions
poor
poor
poor
Climate in Cloghran →

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

Popular cities in January

Day & night temperatures, rainfall and average weather in Dublin County in January.

City Weather Day temp Night temp Rainfall
Dublin 9°C (48°F) 4°C (39°F) 71 mm (2.8 in)
Swords 9°C (48°F) 4°C (39°F) 72 mm (2.8 in)
Dun Laoghaire 9°C (48°F) 4°C (39°F) 80 mm (3.1 in)
Rathgar 9°C (48°F) 3°C (37°F) 73 mm (2.9 in)
Cloghran 9°C (48°F) 4°C (39°F) 72 mm (2.8 in)
Clondalkin 9°C (48°F) 3°C (37°F) 72 mm (2.8 in)

Dublin County weather in January: frequently asked questions

What is the weather like in Dublin County, Ireland in January?

In January, Dublin County, Ireland generally has poor weather conditions. Dublin sees daytime temperatures near 9°C (48°F), with nights cooling to roughly 4°C (39°F).

What is the average temperature in Dublin County, Ireland in January?

Daytime temperatures in Dublin peak at roughly 9°C (48°F) in January, dropping to about 4°C (39°F) overnight.

Does Dublin County, Ireland get a lot of rain in January?

Rain is generally moderate to light in Dublin County, Ireland during January, with Dublin averaging close to 71 mm (2.8 in).

Is January a Good Time to Visit Dublin County, Ireland?

In our view, January might not be the best time to travel to Dublin County, Ireland 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.

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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