International Day of the Tropics Jun 29, 2026

International Day of the Tropics

Observed each June 29, the International Day of the Tropics spotlights a vast region stretching between the Tropics of Cancer and Capricorn, where warmth and rainfall shape daily life. This zone covers about 40% of Earth"s surface area, yet supports around 80% of global biodiversity, making it central to planetary health and culture.

© Frederick Millett/Shutterstock

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Today in History

Celebrating the tropics
In the tropics, land greets sea warmly
Jun. 29, 2024Tour de France 2024
Jun. 29, 2025International Day of the Tropics

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Oct. 13, 2024Royal Alcázar of Seville, Spain
The ‘Old Bridge,’ reborn
Sep. 3, 2024Alpine Lakes Wilderness, Washington, United States
Jan. 12, 2026Eurasian otter and pup, Estonia
Sep. 20, 2023Aqueduct, Arkadia Park, Poland
Jan. 26, 2024Northern hawk-owl
A bevy of buzzers
A grizzly bear sanctuary
Sep. 9, 2024Iguazu Falls at the border of Argentina and Brazil
Positively purple peaks
An experiment in sustainability
A temple to treasure
Aug. 29, 2025Aerial view of Plaza Mayor, Madrid, Spain
Oct. 8, 2023World Octopus Day
Nov. 16, 2023VanDusen Botanical Garden, Vancouver
Aug. 21, 2023Discovery Day in Canada
May 27, 2024Mingan Archipelago National Park Reserve
Jun 6, 2026Natchez Trace Parkway, Mississippi, United States
Nov. 10, 2024Caribbean flamingos, Yucatán Peninsula, Mexico
Sep. 14, 2024Rapa Nui National Park, Easter Island, Chile
Feb. 2, 2024Groundhog Day
Nov. 5, 2025Peña Roya beech forest, Moncayo Natural Park, Aragon, Spain
Living rock
Apr. 23, 2025Shakespeare Day
Jul 27, 2026Tiffany Dome, Chicago Cultural Centre, Illinois, United States
Apr. 7, 2025Whistler World Ski & Snowboard Festival
Aug. 12, 2024World Elephant Day
One on land, a million in space
Back to the future
May 31, 2024Gunnerside, Yorkshire Dales National Park, England