Killarney Sunshine Hours by Month

To truly understand a climate, we must look at its sunshine. This page shows the total number of hours of direct sunlight per month and the average hours per day in Killarney, Kerry, Ireland. These averages rely on historical data collected over 30 years, from 1990 to 2020.

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Killarney. Expect long, bright days with 180 hours in May and darker periods with just 40 hours in December. The total annual amount of sun is 1268 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 6.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.3 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 42% of the time during the day in May, the highest percentage of any month. December has the lowest percentage at 17%.

Killarney enjoys an average of 1268 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.

In contrast, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

Osaka, Japan, experiences 2010 hours of sunshine annually, with bright, sunny weather in spring and autumn.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

December, Killarney’s wettest month, receives 101 mm (4 in) of rainfall and has a maximum daytime temperature of 10°C (50°F). During the driest month September you can expect a temperature of 17°C (63°F).

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