Temperature in Dublin County in January

Daytime highs, nighttime lows and the warmest cities in Dublin County, Ireland this January.

Dublin County, Ireland, a region in Ireland, typically experiences cold weather in January, with maximum daytime temperatures around 9°C (48°F) and nighttime temperatures around 4°C (39°F) in Dublin. The month of January is in the winter season. On average, it is one of the coldest months of the year.

What is the temperature of the different cities in Dublin County, Ireland in January?

Curious about the January temperatures in the prime spots of Dublin County? Navigate the map below and tap on a destination dot for more detailed stats.

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Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit Dublin County, check out our Dublin County's climate page.

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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

Temperatures Precipitation

Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

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).

Marker color shows the average daytime high temperature in January: blue is cold, red is hot.

Marker color shows total monthly precipitation in January: pale blue is dry, deep blue is wet.

Dublin County temperatures in January: frequently asked questions

How hot does it get in Dublin County, Ireland in January?

Average daytime highs in Dublin County, Ireland during January reach about 9°C (48°F) in Dublin.

How cold does it get at night in Dublin County, Ireland in January?

Dublin sees nighttime lows close to 4°C (39°F) in January.

How much sun does Dublin County, Ireland get in January?

Most cities witness limited sunny days; expect roughly 56 hours of sunlight in Dublin. This subdued sunlight is perfect for those who prefer cooler, cloudier weather rather than intense sunny days.

What is the water temperature in January?

The water temperature averages approximately 10°C (50°F) in Dublin this month, generally too cold for comfortable swimming.

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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