The weather in January in Ireland
It's cold in January in Ireland with an average temperature of 8°C. Temperatures this month range from a low of 7°C to a high of 10°C. At night, you can expect temperatures between 1°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 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.
Temperature records
With 15°C in 2016, Ireland reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 1°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of -7°C to a highest value of 13°C.
Precipitation and snowfall
In January, there is an average of 70 mm of precipitation, spread over 9 days. Of the total precipitation, about 1,2 cm falls as snow in January. The wind speed is around 5 Bft, mostly coming from the Southwest.
Daily weather in January for Ireland
Click on any day in January to get detailed info about the usual weather on that day in Ireland. Check out the historical temperatures and precipitation over the past 10 years on this day.
January weather comparison
| Ireland | New York | |
|---|---|---|
| Average temperature | 8°C | 5°C |
| Max. temperature | 10°C | 11°C |
| Min. temperature | 1°C | -5°C |
| Total precipitation | 70 mm | 97 mm |
| Rainy days | 9 days | 12 days |
| Total snowfall | 1,2 cm | 16 cm |
| Snowy days | 1 day | 8 days |
Start of January
The month of January starts in 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 8°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 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 Ireland for all months and discover the best travel time
You can check out all destinations in Ireland to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in January in Ireland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in January in Ireland
Temperature in January in Ireland over the years
Precipitation charts
These charts show the average amount of precipitation in January in 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 Ireland
Total precipitation in January in Ireland over the years
Daily Snowfall in January in Ireland
Snowfall in January in Ireland per year
Daily UV index in January in Ireland
This chart shows the average daily UV index in January in 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 Ireland
The weather in January in Ireland is rated 2 out of 5 stars by 1 visitor. Have you been to Ireland? Share your weather experience to help other visitors.
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Cold, cloudy, rainy and very little sun. This is more for adventurers than sunbathers.— This text is automatically translated to English
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Average weather in Ireland by month
Click on a month below to see detailed weather info for Ireland. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.