Dominica's nine active volcanoes, Boiling Lake at the bottom of an eight-hour hike, and 365 rivers earn its 'Nature Island' tag, with sperm whale residents off the leeward coast year-round.
Dry season with Boiling Lake trail manageable, sperm whale viewing at peak, and the rainforest navigable for trail networks like Waitukubuli.
Rainy afternoons but mornings clear, sea calmest for whale watching, and the Dominica Festival of Arts in October aside, summer goes quiet.
Hurricane season peaks September with elevated risk on the small island. Many smaller guesthouses close. World Creole Music Festival in late October.
Independence Day November 3 fills Roseau with bands, hurricane risk fading, and the dry season returning as the rainforest dries to navigable trails.