Temperature in County Antrim in January

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

County Antrim, 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 Lisburn. In January, it is winter. On average, it is one of the coldest months of the year.

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

Curious about the January temperatures in the prime spots of County Antrim? 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 County Antrim, check out our County Antrim's climate page.

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

Best Places to Visit in County Antrim in January

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

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.

County Antrim temperatures in January: frequently asked questions

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

Expect daytime temperatures around 9°C (48°F) in Lisburn. That makes January a low month for County Antrim, Ireland.

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

After dark, Lisburn cools to about 4°C (39°F) on an average January night.

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

Most areas see fewer sunny days, with a projection of about 45 hours of sunshine in Lisburn. This reduced sunlight makes it ideal for those who prefer cooler, overcast conditions over bright sunny days.

What is the water temperature in January?

The water temperature averages approximately 8°C (46°F) in Belfast this month, generally too cold for comfortable swimming.

Interested in more climate information?

We have much more information about the climate in County Antrim.

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.

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