International Day of the Tropics

International Day of the Tropics History

The International Day of the Tropics is celebrated annually on June 29th to raise awareness about the unique challenges and opportunities faced by countries located within the Tropics. The Tropics are defined as the area between the Tropic of Cancer and the Tropic of Capricorn, where the sun is directly overhead at least once during the year. South Africa has a rich biodiversity of over 23,000 plant species, of which approximately 10% are found nowhere else in the world. The country also has a diverse population of wildlife, including the Big Five (lion, leopard, elephant, buffalo, and rhinoceros).

The United Nations designated International Day of the Tropics in 2016 on the recommendation of the State of Queensland in Australia. The Day aims to promote sustainable development in the Tropics, build resilience, and encourage collaboration between tropical regions worldwide. South Africa, located in the southern part of the Tropics, participates in the annual celebration of the International Day of the Tropics. It is an opportunity to showcase the country's unique tropical flora and fauna, promote sustainable tourism, and highlight the importance of conserving the natural environment.

Through various events and awareness campaigns, South Africa celebrates the International Day of the Tropics to raise awareness about the importance of protecting the country's unique tropical environment and promoting sustainable development. The International Day of the Tropics is observed annually on June 29th.

Top 10 Facts for 2026 International Day of the Tropics in South Africa

• International Day of the Tropics serves as a global call to action, and for 2026, it emphasizes the urgent need for integrated strategies that balance sustainable development with the preservation of vital ecosystems.
• While there is no singular rotating annual theme, the 2026 observance focuses on highlighting how tropical challenges—such as climate change and biodiversity loss—have far-reaching global implications that require coordinated international cooperation.
• The observance specifically draws attention to the inaugural State of the Tropics Report, which was launched in 2014 and whose anniversary serves as the foundation for this day.
• In South Africa, this day provides a context to discuss the country’s diverse climatic zones, ranging from the humid, subtropical environments of the KwaZulu-Natal coast to the semi-arid regions that are increasingly vulnerable to shifting climate patterns.
• The tropical zone—defined as the region of Earth between the Tropic of Cancer and the Tropic of Capricorn—accounts for approximately 36 to 40 percent of the world’s landmass and hosts a significant majority of the planet's biodiversity.
• Recognized by the United Nations General Assembly under resolution A/RES/70/267, this day acknowledges the essential role tropical nations play in achieving global Sustainable Development Goals.
• Environmental experts use this occasion to highlight the role of mangroves and tropical wetlands, which provide critical natural infrastructure by preventing coastal erosion and filtering pollutants from water supplies.
• The day emphasizes that the tropics contain about 54 percent of the world's renewable water resources, making their health and protection a cornerstone of global food and water security.
• Cultural and environmental advocates note that the tropical zone is home to 85 percent of the world’s spoken languages, reflecting a profound societal diversity that is as important to preserve as the region's biological assets.
• In South Africa, discussions often center on the vulnerability of the southeastern coast to extreme climatic events, underscoring the importance of resilient infrastructure and adaptive policy to protect both human livelihoods and natural habitats.

In the News and Trending in South Africa for International Day of the Tropics

Top things to do in South Africa for this observance

• Read a first-hand account about Carmen Rodríguez and her family's efforts to preserve Colombia's tropical dry forest.
• Browse the 2020 report on the state of the tropics. It covers a wide variety of topics including the environment, human impact, and the application of science and technology.
• Watch The Endless Summer (1966) - A documentary about two American surfers who travel the globe in search of the perfect wave, focusing on the tropics and the warm waters of South Africa.
• Read a book to learn more about the tropics in South Africa. Here are some suggestions:
  1. Fynbos: Ecology, Evolution, and Conservation of a Megadiverse Region edited by Nicky Allsopp, Jonathan F. Colville, and G. Anthony Verboom.
  2. The Vegetation of South Africa, Lesotho and Swaziland by L. Mucina and M. C. Rutherford
  3. Wildlife of Southern Africa: A Field Guide to the Animals and Plants of the Region by Vincent Carruthers