What should I pack for Maui?

Compliant mineral sunscreen runs $18-22 at resort shops and Kahului Airport. Thinksport or Sun Bum mineral formula costs $12-14 stateside, worth packing to skip the island markup. Rangers at Haleakalā National Park (established as its own park in 1961) check ingredient labels at the gate. Maui sits at 20°N latitude, and the UV index regularly hits 11+ between 10am and 2pm, even under cloud cover. A wide-brim hat with a chin strap beats sunglasses here because Maui's northeast trades catch anything loose and send it into the surf. Rash guards save you from reapplying every 40 minutes while snorkeling off Molokini Crater or Honolua Bay. A dry bag for your phone and camera is worth the $8-12. The bamboo forest trail to Waimoku Falls throws enough mist to soak anything in an open pocket, and the coastal path at Wai'anapanapa catches salt spray on windy days.

The 25°C swing between coast and summit catches first-timers off guard. Beach-level Kihei and Ka'anapali sit at 27-32°C year-round, but the summit of Haleakalā reaches only 4-7°C on a typical morning. If you're doing the sunrise viewing, book ahead at recreation.gov ($1.50 reservation fee plus $30 park entry per vehicle). You'll be standing at 3,055 meters in 40-knot gusts before dawn. A fleece midlayer and a wind-blocking shell are the 2 non-negotiable summit items. Beach towels won't hold at the summit visitor shelter, and no rental jackets exist at the top. The drive from Wailea takes about 90 minutes, so you go from sandals to winter layers in under 2 hours.

Footwear for Maui takes more planning than most visitors expect. The Road to Hana's 620 curves and 59 bridges lead to trailheads where the ground is wet volcanic rock, exposed roots, and red clay mud. The trail to Makahiku Falls takes about 30 minutes on a surface that stays slippery even in dry weeks. Closed-toe hiking sandals like Chacos or Keens handle both those trails and the lava shoreline at Pa'iloa Beach, where sharp volcanic fragments shred foam flip-flops in a single visit. Bring a second pair of water shoes for the rocky entries at Kapalua Bay and Big Beach at Makena State Park. Dress shoes are unnecessary anywhere on Maui. Even the upscale restaurants along Wailea's Gold Coast seat visitors in clean shorts and covered shoes.

Skip packing anything you can buy cheaper at Costco Kahului or the Walmart on Dairy Road. Beach chairs, boogie boards, and coolers cost less than checking an extra bag at $35 per piece on Hawaiian Airlines. Longs Drugs in Kahului carries ibuprofen, aloe vera, and Dramamine at mainland prices. Pick up the motion-sickness tablets before driving the road east to Hana. Historic Lahaina Town lost most of its Front Street shops in the August 2023 wildfire. The area is still rebuilding, so plan supply runs around Kahului instead. Leave the umbrella home because Maui's rain tends to be warm, brief, and localized. You might get soaked for 8 minutes near Hana while Ka'anapali stays dry 50 miles west. A $6 poncho from any ABC Store handles the trade-wind showers better than an umbrella the gusts will invert.

September through November brings higher humidity and occasional Kona winds that push rain to the normally dry leeward coast around Kihei and Wailea. Recent observations showed 16.7°C with showers and 100% humidity at elevation, a reminder that upcountry Maui can feel more like Kula's cloud forest than a tropical beach. Winter swells from December through March close many north shore beaches to swimming and scatter salt spray across the parking lots at Ho'okipa Beach Park. Summer visitors from May through August face drier conditions but should bring a second rash guard for consecutive snorkel days. Year-round, the northeast trades keep sea level at 25-30°C but whip sand at Ma'alaea and Kanaha Beach Park hard enough to sting exposed skin.