Find Beach Resorts in Castlewellan

The most popular time to stay in a beach hotel in Castlewellan is during July and August, when the weather is at its warmest and most consistent. You'll find average temperatures hovering around 18-20°C, great for enjoying the coastal landscapes and perhaps even a dip in the Irish Sea. This period is bustling with visitors, all keen to make the most of the longer daylight hours and the friendly space of the seaside. Families often find these months particularly appealing, with plenty of activities available for children along the coast and in the surrounding area like Castlewellan Forest Park.For those seeking a slightly more tranquil experience with potential for excellent value, June presents a wonderful alternative. The weather is still very pleasant, with temperatures often reaching 16-18°C, and the days are long, offering ample time for coastal walks and exploring the local charming towns. It can be easier to secure reservations at the area's best beach hotels and restaurants, and you may find better value on accommodation and activities.

One Key™ —Expedia's free travel rewards programme—gives you instant access to perks and Member Prices on Castlewellan beach hotels. Plus, you'll earn OneKeyCash™* on eligible bookings to use on future trips. Typically, booking in advance will help you save on your hotel booking. But, if you're feeling spontaneous, check out the last-minute deals.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.