On average, the temperature drops about 3°f for every 1,000 foot rise in elevation (or approximately 5°c for every 1,000 meter elevation rise), making the 10,023 foot (3055m) summit of haleakalā. Experiencing sunrise on haleakala is actually the most popular tourist activity on maui, and yet it's also one of the most restricted things to do This is hawaiʻi but it gets very cold at the summit
Sunrise at Haleakala on Maui, the House of the Sun