Carndonagh Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Carndonagh.
Climate overview of Carndonagh
Carndonagh, Ireland, has a moderate seasonal temperature range, with August reaching 18°C (64°F) and January cooling to 9°C (48°F).
The city has a wet climate, receiving around 1308 mm (51 in) of rainfall per year. December is the wettest month. The most sunshine falls in May, with an average of 6.8 hours of daily sunshine.
Carndonagh Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Carndonagh - and find the best time to visit.
Monthly Temperature in Carndonagh
In Carndonagh, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a moderate 18°C (64°F) in August to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 13°C (55°F) in August to 5°C (41°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Carndonagh
Carndonagh is known for its substantial rainfall, with annual precipitation reaching 1308 mm (51 in). The wettest period in Carndonagh occurs in December, which receives around 133 mm (5.2 in) of precipitation. During the driest month, May, Carndonagh experiences moderate rainfall, totaling 83 mm (3.3 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Carndonagh Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Carndonagh
In Carndonagh, summer days are longer and more sunny, with daily sunshine hours peaking at 6.8 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.1 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Carndonagh by Month
The relative humidity is high throughout the year in Carndonagh.
The city experiences its highest humidity in December, reaching 81%. In April, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Carndonagh
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June and August
- Warmest weather: July, August and September
- Most sunshine: May
Frequently asked questions about the climate in Carndonagh
What is the best time to visit Carndonagh?
May, June and August typically offer the most optimal weather in Carndonagh. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Carndonagh?
Daytime highs range from 9°C (48°F) in January to 18°C (64°F) in August. Nighttime lows range from 5°C (41°F) to 13°C (55°F).
How much rain does Carndonagh get?
Annual rainfall is around 1308 mm (51 in). December is the wettest month with 133 mm (5.2 in), while May is the driest with 83 mm (3.3 in).
How sunny is Carndonagh?
Carndonagh receives around 1,272 hours of sunshine per year. May is the sunniest month with 203 hours, while December is the cloudiest with just 34 hours.
Carndonagh 3-Day Forecast
Carndonagh on the map
Carndonagh is highlighted - select any city to see its climate.
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