IrelandThe climate of Donegal
The current climate in Donegal features temperatures ranging from a high of 18°C to a low of 9°C throughout the year. The average yearly temperature is around 14°C. At night, temperatures in the colder months average around 4°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 Donegal, Ireland.
Temperature records
The highest temperature recorded in Donegal in recent years was 28°C in June 2023. The lowest daytime temperature recorded was -1°C in February 2018.
Precipitation and snowfall
On average, Donegal gets 1111 mm of precipitation each year. Of this, about 6,4 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
Best time to visit Donegal?
The best time to visit Donegal for mild to warm weather is May up to September. You might get some rain, but the temperatures are just right to explore Donegal.
Find affordable trips to Donegal
Climate Table of Donegal
The climate table of Donegal 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) | 9 | 9 | 10 | 13 | 15 | 17 | 18 | 18 | 17 | 14 | 11 | 9 |
| Temp. min (°C) | 4 | 4 | 4 | 5 | 8 | 11 | 13 | 12 | 11 | 9 | 6 | 5 |
| Precipitation |  |
|
|
|
|
|
|
|
|
|
|
|
| Precipitation (mm) | 114 | 118 | 88 | 46 | 67 | 73 | 96 | 101 | 73 | 103 | 106 | 126 |
| Snow (cm) | 2,7 | 2,8 | 0,6 | 0,1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,2 |
| UV Index | 1 | 2 | 3 | 5 | 6 | 6 | 5 | 5 | 4 | 2 | 1 | 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 Donegal, Ireland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Donegal
Yearly Temperature in Donegal
Precipitation charts
These charts show the average amount of precipitation in Donegal, 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 Donegal
Total Yearly Precipitation in Donegal
Average Snowfall per Month in Donegal
Total Yearly Snowfall in Donegal
UV index chart
This chart shows the average UV index per month in Donegal, 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 Donegal
Weather experiences in Donegal
Have you been to Donegal?
Share your weather experiences in Donegal.
Average weather in Donegal by month
Click on a month below to see detailed weather info for Donegal. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.