Honiara, Solomon Islands offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Honiara is known for the Guadalcanal American Memorial and the National Museum of Solomon Islands. The best time to travel to Honiara, Solomon Islands, is from May to October, with average air temperatures around 27°C (81°F) and water temperatures near 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!