March.

Central America

Costa Rica

The easiest serious jungle on earth — sloths over breakfast, surf twenty minutes away.

Best months: December – April (dry), May – August (green, quieter) 6 stays in Costa Rica

North America

Tulum & the Maya Jungle

Low, dense Maya jungle riddled with cenotes — swim in a cave before lunch, ruins before dinner.

Best months: November – April 6 stays in Tulum

Caribbean

Puerto Rico

The only tropical rainforest in the US national forest system, no passport required for Americans.

Best months: December – April (driest), but green year-round 6 stays in Puerto Rico

North America

Florida

Banyans, bamboo groves and blackwater swamps — the jungle hiding inside the United States.

Best months: November – April 6 stays in Florida

Southeast Asia

Thailand

Jungle two ways: limestone island rainforest over turquoise water, or misty mountain forest up north.

Best months: Islands: January – April · North: November – February 6 stays in Thailand

South America

Colombia

Four very different forests, from Amazon river lodges to Minca treehouses to Pacific cabins where the jungle runs into the sea.

Best months: Caribbean side (Minca, Tayrona) driest Dec–Mar and Jul–Aug; Chocó wet year-round but humpback whales Jul–Oct; Leticia no true dry season, easier trails Jun–Nov 6 stays in Colombia

South Asia

Sri Lanka

Wet-zone rainforest, misty tea-estate hill country and dry-zone forest, with two monsoons that run on opposite calendars.

Best months: Southwest rainforest and hill country (Sinharaja, Ella) best Dec–Apr; dry-zone south and east (Yala, Sigiriya) best May–Sep, the opposite calendar 6 stays in Sri Lanka

Central America

Belize

More than half the country is forest, the ruins still wear their canopy, and the treehouses sit on real rivers.

Best months: Late November – May (dry); June – November is green, wet and cheaper 7 stays in Belize

Central America

Panama

Caribbean island jungle in Bocas del Toro, cloud forest in Boquete, and sloths in the trees of the capital.

Best months: December – April (dry); Bocas often clears in September and October 6 stays in Panama

Central America

Guatemala

Temples above the treeline, a river canyon to the Caribbean, and turquoise pools in the limestone hills.

Best months: December – April (dry); wettest from September to November 6 stays in Guatemala

Southeast Asia

Borneo

Wild orangutans, pygmy elephants and eight kinds of hornbill, in some of the oldest rainforest on Earth.

Best months: March – October (drier); November – February is the wet monsoon 6 stays in Borneo