Butterworth, Malaysia offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Butterworth is known for its proximity to Penang Island's beaches and cultural attractions. The best time to travel to Butterworth, Malaysia, is between December and February, with average air temperatures around 28°C (82°F) and water temperatures near 29°C (84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!