Duncannon Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Duncannon.
Climate overview of Duncannon
Duncannon, Wexford County, Ireland, has a moderate seasonal temperature range, with August reaching 19°C (66°F) and February cooling to 10°C (50°F).
The city has a wet climate, receiving around 1018 mm (40 in) of rainfall per year. November is the wettest month. The sunniest month is May, with 7.1 hours of sunshine per day on average.
Duncannon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Duncannon — and find the best time to visit.
Monthly Temperature in Duncannon
The weather in Duncannon changes moderately throughout the year, offering enough variation to appreciate each season. On average, daytime temperatures range from a pleasant 19°C (66°F) in August to a chilly 10°C (50°F) in February.
Nighttime temperatures range from 14°C (57°F) in August to 5°C (41°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Duncannon
Duncannon is known for its substantial rainfall, with annual precipitation reaching 1018 mm (40 in). The amount of precipitation varies moderately throughout the year. The wettest month, November, sees around 113 mm (4.4 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, May, still receives a respectable 66 mm (2.6 in) of rainfall. For more details, please visit our Duncannon 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 Duncannon
In Duncannon, summer days are longer and more sunny, with daily sunshine hours peaking at 7.1 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.8 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Duncannon by Month
The relative humidity is high throughout the year in Duncannon.
The city experiences its highest humidity in December, reaching 82%. 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 Duncannon
The weather does bring rainfall during this period, between 72 mm (2.8 in) and 80 mm (3.1 in). Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Duncannon
What is the best time to visit Duncannon?
July and August typically offer the most optimal weather in Duncannon. In contrast, January, February, November and December tend to have less optimal conditions.
What temperatures can I expect in Duncannon?
Daytime highs range from 10°C (50°F) in February to 19°C (66°F) in August. Nighttime lows range from 5°C (41°F) to 14°C (57°F).
How much rain does Duncannon get?
Annual rainfall is around 1018 mm (40 in). November is the wettest month with 113 mm (4.4 in), while May is the driest with 66 mm (2.6 in).
How sunny is Duncannon?
Duncannon receives around 1,600 hours of sunshine per year. May is the sunniest month with 213 hours, while December is the cloudiest with just 54 hours.
Duncannon 3-Day Forecast
Duncannon 3-Day Forecast
Duncannon on the map
Duncannon is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Cork
19°C (66°F) Kilkenny
20°C (68°F) Dublin20°C (68°F) Kenmare
19°C (66°F) Galway20°C (68°F) Killarney19°C (66°F) Westport19°C (66°F) Doolin18°C (64°F) 
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