Blaine, United States offers 13 beaches perfect for sunbathing, surfing, swimming, and more. Blaine, Washington, United States, is known for its proximity to the Peace Arch border crossing and its scenic views of the Pacific Northwest. The best time to travel to Blaine, United States, is during the summer months of June to August, when the average air temperature is around 65-75°F (18-24°C) and the water temperature is approximately 55-60°F (13-16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!