Terneuzen, Netherlands offers 1 beach perfect for sunbathing, surfing, swimming, and more. Terneuzen is known for the Terneuzen Canal, which is a key maritime gateway connecting the Netherlands to Belgium. The best time to travel to Terneuzen, Netherlands, is from June to August, when the average air temperature is around 20°C (68°F) and the water temperature is approximately 18°C (64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!