Average Monthly Sunshine in Letterkenny

The graphs on this page shows the average number of hours per month and per day that Letterkenny receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

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

This means the city can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 6.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.3 hours of sunlight per day.

Letterkenny’s total hours of sunshine compared to other major cities

Letterkenny enjoys an average of 1342 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.

Manchester, UK, experiences just around 1420 hours of sunshine annually.

The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

Other climate information

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

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.