Mombasa, Kenya offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Mombasa is known for Fort Jesus, Diani Beach, and the Old Town. The best time to travel to Mombasa, Kenya, is from June to September, when the average air temperature is around 26°C (79°F) and the water temperature is approximately 25°C (77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!