Haldimand, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Haldimand, Ontario, Canada, is known for the Grand River, Ruthven Park National Historic Site, and the Caledonia Fair. The best time to travel to Haldimand, Canada, is during the summer months of June to August, when the average air temperature is around 20-25°C (68-77°F) and the water temperature in nearby Lake Erie is approximately 20-23°C (68-73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!