Average Monthly Sunshine in Castlerock

The graphs on this page shows the average number of hours per month and per day that Castlerock 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 Castlerock, 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

For those who appreciate different seasons, Castlerock serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 6.8 hours of sunshine daily, and embrace the darker days in December, offering only 1.3 hours of daily sunlight.

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

Castlerock 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.

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

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

Other climate information

November, Castlerock’s wettest month, receives 112 mm of rainfall and has a maximum daytime temperature of 11°C. During the driest month May you can expect a temperature of 13°C.

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