Kahului is a busy hub of activity in the valley between the West Maui mountains and the slopes of Haleakala. It's the most urban place on the island, with a harbor, airport, shops, malls and tons of things to do. In some ways it is the heart of Maui, and it's certainly its shopping central.
Visit the Kahului Harbor and watch the large cruise ships dock or the surfers who enjoy the wind and the waves offshore. Airport Beach and Kanaha Beach Park are busy with windsurfers, paddle boarders and kite boarders. Kanahâ Beach Park is also home to acres of parkland and incredible views from the cliffs. The Maui Arts and Cultural Center can't be beat for international world class acts, concerts, and films. If you can't make a show just explore the gallery for local art. Shopping and dining are unmissable in Kahului, aside from many well known big stores, Queen Kaahumanu Center has some unique stores and Hawaii original finds that you just won't get anywhere else. Gourmet food trucks and interesting restaurants are also easily found in the city.
The best time to visit Maui is in April, May and September through November.