The climate of Northern Ireland
The current climate in Northern Ireland features temperatures ranging from a high of 19°C to a low of 8°C throughout the year. The average yearly temperature is around 14°C. At night, temperatures in the colder months average around 3°C and in the warmer months around 12°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Northern Ireland.
Temperature records
The highest temperature recorded in Northern Ireland in recent years was 29°C in July 2022. The lowest daytime temperature recorded was -1°C in March 2018.
Precipitation and snowfall
On average, Northern Ireland gets 976 mm of precipitation each year. Of this, about 3,4 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
You can check out all destinations in Northern Ireland to get the full picture of the climate.
Best time to visit Northern Ireland?
The best time to visit Northern Ireland for mild to warm weather is May up to September. You might get some rain, but the temperatures are just right to explore Northern Ireland.
Find affordable vacations to Northern Ireland
Climate Table of Northern Ireland
The climate table of Northern Ireland shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. max (°C) | 8 | 9 | 10 | 12 | 15 | 18 | 19 | 18 | 17 | 14 | 10 | 9 |
| Temp. min (°C) | 3 | 4 | 4 | 5 | 8 | 11 | 13 | 12 | 11 | 8 | 6 | 4 |
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| Precipitation (mm) | 91 | 88 | 82 | 55 | 59 | 68 | 80 | 93 | 71 | 93 | 95 | 101 |
| Snow (cm) | 0,9 | 1,1 | 1,0 | 0,2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,2 |
| UV Index | 1 | 2 | 3 | 5 | 6 | 6 | 5 | 5 | 4 | 3 | 2 | 1 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Northern Ireland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Northern Ireland
Yearly Temperature in Northern Ireland
Precipitation charts
These charts show the average amount of precipitation 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.
Average Precipitation per Month in Northern Ireland
Total Yearly Precipitation in Northern Ireland
Average Snowfall per Month in Northern Ireland
Total Yearly Snowfall in Northern Ireland
UV index chart
This chart shows the average UV index per month in Northern Ireland. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Northern Ireland
Weather experiences in Northern Ireland
The weather in Northern Ireland is rated an average of 3 out of 5 stars by 5 visitors. Have you been to Northern Ireland? Share your weather experience to help other visitors.
Lotte
Bright gray skies, heavy rain and darkness were the order of the day. However, this hilly landscape under the snow was irresistibly beautiful.
Tijn van de WijngaardStrong winds provided refreshment. Prepare for sunshine and gray clouds and make the most of your day! But high temperatures are not to be expected here in June!
Bjorn CreemersI saw many showers, but also sunny periods. The temperature was moderate, around 15 degrees. Ideal for a short walk, although a jacket is recommended.
Elske ZirkzeeAlthough there were cold and rainy days, there were also surprisingly sunny times. Bring an umbrella and a coat!
Daphne AdrichemSometimes too cold for this time of year, the temperature was usually around 15 degrees. There was occasional rain and clouds, but there were also moments of beautiful sunshine. An umbrella is a must!
Have you been to 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.