Rathmullan Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Rathmullan.
Climate overview of Rathmullan
Rathmullan, Donegal County, Ireland, has a moderate seasonal temperature range, with July reaching 19°C (66°F) and January cooling to 9°C (48°F).
The city has a wet climate, receiving around 1223 mm (48 in) of rainfall per year. August is the wettest month. Sunshine peaks in May, when the city sees around 6.8 hours of sunshine per day.
Rathmullan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rathmullan — and find the best time to visit.
Monthly Temperature in Rathmullan
The climate in Rathmullan experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a pleasant 19°C (66°F) in July to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 12°C (54°F) in July to 4°C (39°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Rathmullan
Rathmullan is known for its substantial rainfall, with annual precipitation reaching 1223 mm (48 in). The wettest period in Rathmullan occurs in August, which receives around 113 mm (4.4 in) of precipitation. During the driest month, April, Rathmullan experiences moderate rainfall, totaling 90 mm (3.5 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Rathmullan 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 Rathmullan
In Rathmullan, 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 1.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Rathmullan
The weather does bring rainfall during this period, between 95 mm (3.7 in) and 113 mm (4.4 in). Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Rathmullan
What is the best time to visit Rathmullan?
May, July, August and September typically offer the most optimal weather in Rathmullan. In contrast, January, February, November and December tend to have less optimal conditions.
What temperatures can I expect in Rathmullan?
Daytime highs range from 9°C (48°F) in January to 19°C (66°F) in July. Nighttime lows range from 4°C (39°F) to 12°C (54°F).
How much rain does Rathmullan get?
Annual rainfall is around 1223 mm (48 in). August is the wettest month with 113 mm (4.4 in), while April is the driest with 90 mm (3.5 in).
How sunny is Rathmullan?
Rathmullan receives around 1,342 hours of sunshine per year. May is the sunniest month with 203 hours, while December is the cloudiest with just 39 hours.
Rathmullan 3-Day Forecast
Rathmullan 3-Day Forecast
Rathmullan on the map
Rathmullan is highlighted — select any city to see its climate.
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