Haverfordwest, United Kingdom offers 11 beaches perfect for sunbathing, surfing, swimming, and more. Haverfordwest is known for its proximity to the Pembrokeshire Coast National Park and its historic sites. The best time to travel to Haverfordwest, United Kingdom, is during the summer months of June to August, when the average air temperature is around 16-20°C (61-68°F) and the average water temperature is approximately 15-17°C (59-63°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!