Betio, Kiribati offers 1 beach perfect for sunbathing, surfing, swimming, and more. Betio is known for its World War II relics and the Battle of Tarawa sites. The best time to travel to Betio, Kiribati, is from May to October, 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!