April.

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

Southeast Asia

Bali

Nowhere else builds like this — five-story bamboo houses over river gorges, for the price of a city hotel room.

Best months: April – October (dry season) 6 stays in Bali

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

Pacific

Hawai‘i

Fern forests growing on fresh lava — the youngest jungle on the planet, and it feels like it.

Best months: Year-round; April – October slightly drier 6 stays in Hawai‘i

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