National Park of American Samoa
The only U.S. national park south of the equator: rainforest, coral reefs and Samoan villages.
4 national parks
Best Time to Visit Hawaiʻi & Islands National Parks
Active volcanoes, Caribbean reefs and the only U.S. national park south of the equator. Pleasant year-round, with the best value in the spring and fall shoulder seasons and hurricane risk from June to November in the Caribbean.
Best overall month for the region: May. Each park has its own window below.
Average rating by month
Season calendar
The parks
Haleakalā
Sunrise above the clouds from a 10,000-foot volcano.
Hawaiʻi Volcanoes
Two of the world's most active volcanoes, and, if you're lucky, glowing lava.
Virgin Islands
White-sand beaches, coral reefs and sugar mill ruins on St. John.
Questions
When is the best time to visit Hawaiʻi & Islands national parks?
May is the best overall month for the 4 parks in this region. Pleasant year-round, with the best value in the spring and fall shoulder seasons and hurricane risk from June to November in the Caribbean.
How many national parks are in the Hawaiʻi & Islands region?
4: National Park of American Samoa, Haleakalā, Hawaiʻi Volcanoes, Virgin Islands.
Pacific NorthwestCaliforniaSouthwestRocky Mountains & PlainsGreat Lakes & NortheastSoutheastAlaska
Last reviewed October 4, 2026. Ratings are editorial. Rules and road openings change each year, so confirm on the official NPS site before you go.