Letterkenny Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Letterkenny, Donegal County, Ireland. Long-term data from 1990 to 2020 was used to calculate these averages.

Monthly hours of sunshine

If you're visiting Letterkenny, timing is key. In May, you can enjoy up to 203 hours of sunshine, while the shorter days of December provide just 39 hours. The total annual amount of sun is 1342 hours.

Daily hours of sunshine

In Letterkenny, 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 day.

Letterkenny enjoys an average of 1342 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Seville, Spain, enjoys an impressive 2920 hours of sunshine per year, making it an ideal destination even in winter.

In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

Toronto, Canada, sees around 2071 hours of sunshine each year, with especially long, bright summer days.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

December, Letterkenny’s wettest month, receives 111 mm (4.4 in) of rainfall and has a maximum daytime temperature of 9°C (48°F). During the driest month April you can expect a temperature of 12°C (54°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Letterkenny Precipitation page.