International Day of the Tropics Jun 29, 2026

International Day of the Tropics

Observed each 29 June, 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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Perfect, pastoral Palouse
Feb 21, 2024Horsetail Fall, Yosemite National Park, California, USA
Behold the architectural marvel
Jun 15, 2024Nazaré, Portugal
Jun 1, 2026Palermo, Sicily, Italy
Mar 22, 2025Bihar Day
God’s Own Country
Oct 27, 2023Sligachan Old Bridge, Isle of Skye, Scotland
An oasis in the desert
Nov 11, 2025Externsteine in the Teutoburg Forest, Germany
Sep 18, 2023Milky Way over Southwest Alentejo and Vicentine Coast Natural Park
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Where are these birds headed?
Apr 13, 2026International Dark Sky Week
Mar 31, 2024Happy Easter!
Oct 3, 2023Whitehaven Beach, Whitsunday Islands, Australia
Aug 18, 2024Huntington Beach Pier, California, USA
Aug 6, 2026Migrating wildebeest crossing Mara River in Masai Mara, Kenya
Sep 13, 2025Point Reyes National Seashore, California, United States
Mar 11, 2026Peach trees in Cieza, Murcia, Spain
Jun 11, 2026Limpets at low tide on the coast of Praia da Ursa, Portugal
Jun 5, 2024World Environment Day
Jan 6, 2025Flooded crypt, Basilica of San Francesco, Ravenna, Italy
Hide-and-go-seek world champion
Jan 12, 2024Bukhansan National Park, South Korea
Season of light in the City of Light
Aug 20, 2025The citadel in Bonifacio, Southern Corsica, France
A future built on the past
A natural spotlight
Mar 13, 2025Marine iguanas, Galápagos Islands, Ecuador