The  best time to visit Hawaii For Weather is in the months between March and September. It is one of the easiest and most beautiful times to travel in the United States, with cooler temperatures, fewer tourists, and some leaves changing early in the month. From cosy mountain retreats to breweries and farmers markets in a hip city. This is an excellent time to visit the beach or the sea, as well as to take advantage of peak prices at hotels and resorts while enjoying the wonderful weather in Hawaii.