Dun Laoghaire Sunshine Hours by Month

When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Dun Laoghaire, Dublin County, Ireland. These averages rely on historical data collected over 30 years, from 1990 to 2020.

Monthly hours of sunshine

If you're visiting Dun Laoghaire, timing is key. In May, you can enjoy up to 188 hours of sunshine, while the shorter days of December provide just 51 hours. The total annual amount of sun is 1432 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 6.3 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.7 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 23%.

Dun Laoghaire enjoys an average of 1432 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, Tromsø , Norway, receives only about 1270 hours of sunshine per year, known for the polar night with no sunlight for weeks during winter.

In Seoul, South Korea, there are approximately 2133 hours of sunshine per year, mostly during spring and autumn.

Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.

November, Dun Laoghaire’s wettest month, receives 81 mm (3.2 in) of rainfall and has a maximum daytime temperature of 12°C (54°F). During the driest month March you can expect a temperature of 10°C (50°F).

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