The weather in January in Northern Ireland

It's cold in January in Northern Ireland with an average temperature of 8°C. Temperatures this month range from a low of 6°C to a high of 10°C. At night, you can expect temperatures between 2°C and 5°C.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in January for Northern Ireland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Precipitation and snowfall

In January, there is an average of 91 mm of precipitation, spread over 12 days. Of the total precipitation, about 0,9 cm falls as snow in January. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in January for Northern Ireland

Click on any day in January to get detailed info about the usual weather on that day in Northern Ireland. Check out the historical temperatures and precipitation over the past 10 years on this day.

January weather comparison

  Northern Ireland New York
Average temperature 8°C 5°C
Max. temperature 10°C 11°C
Min. temperature 2°C -5°C
Total precipitation 91 mm 97 mm
Rainy days 12 days 12 days
Total snowfall 0,9 cm 16 cm
Snowy days 1 day 8 days

Start of January

The month of January starts in Northern Ireland with cold temps, averaging around 9°C during the day and nights around 4°C.

Mid January

By mid-January, daytime temps drop to around 7°C, with nights around 3°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of January

By the end of January, the average daytime temperature in Northern Ireland is around 9°C, while nighttime temps are about 4°C. A shower might pop up, but overall, the weather will be dry and sunny.

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UV index

The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.

Check out the climate of Northern Ireland for all months and discover the best travel time

You can check out all destinations in Northern Ireland to get the full picture of the climate.

Temperature charts

These charts show the average temperatures in January in Northern Ireland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in January in Northern Ireland

Temperature in January in Northern Ireland over the years

Precipitation charts

These charts show the average amount of precipitation in January in Northern Ireland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in January in Northern Ireland

Total precipitation in January in Northern Ireland over the years

Daily Snowfall in January in Northern Ireland

Snowfall in January in Northern Ireland per year

Daily UV index in January in Northern Ireland

This chart shows the average daily UV index in January in Northern Ireland, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in January in Northern Ireland

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Average weather in Northern Ireland by month

Click on a month below to see detailed weather info for Northern Ireland. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.