International Whale Shark Day2026 · Date · History
Wildlife Trust of India’s 2026 observance page states that International Whale Shark Day is marked every year on 30 August and documents its own continuing participation.
About International Whale Shark Day
International Whale Shark Day is observed on August 30 to raise awareness of whale sharks and the conservation pressures affecting the world’s largest living fish.
The August 30 observance was declared in connection with the Second International Whale Shark Conference held in Isla Holbox, Mexico, in 2008.
Why International Whale Shark Day matters
The day highlights the protection of whale sharks, their habitats and migratory routes, and encourages safer interactions between people, vessels and this wide-ranging species.
Whale sharks are listed as Endangered on the IUCN Red List, and current conservation work includes concerns about fisheries interactions, vessel strikes and protection across national boundaries.
History of International Whale Shark Day
Wildlife Trust of India reports that Mexico’s National Commission of Natural Protected Areas, host of the 2008 International Whale Shark Conference, declared August 30 as International Whale Shark Day with participation representing more than 40 countries.
Later Wildlife Trust of India materials continue to identify August 30 as the annual observance.
The conference declaration establishes the date and institutional context, but it does not by itself prove which subsequent August 30 was the first separately observed edition, so no inaugural observance year is asserted here.
How the observance developed
This timeline uses documented milestones from reviewed sources. Missing stages are left out rather than guessed.
National Commission of Natural Protected Areas (CONANP), Mexico
Wildlife Trust of India identifies CONANP, host of the 2008 conference, as the body that declared August 30 International Whale Shark Day.
National Commission of Natural Protected Areas (CONANP), Mexico
The conference-host declaration is attributed to CONANP.
What the evidence establishes
Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.
7 fields not established in reviewed sources
How to Observe International Whale Shark Day
Learn how whale shark migration and feeding areas connect conservation work across national waters.
When joining wildlife tours, choose operators that follow local distance, speed and no-touch rules around whale sharks.
Support reputable research or conservation programs working on fisheries interactions, identification, habitat protection or vessel-strike reduction.
Use current conservation sources when sharing status or threat information rather than repeating old population estimates.
International Whale Shark Day Facts
International Whale Shark Day is observed on August 30.
The 2008 conference declaration is associated with Mexico’s National Commission of Natural Protected Areas, which hosted the event.
Whale sharks are the largest living fish.
Current conservation sources list the species as Endangered.
The 2008 declaration year should not be assumed to be the first separately observed annual edition without direct evidence.
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
Evidence & sources
Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.
Convention on Migratory Species — Whale shark species profile (opens in a new tab)
Wildlife Trust of India — International Whale Shark Day campaign history (opens in a new tab)
Wildlife Trust of India — Whale Shark Day Goes International (opens in a new tab)
Wildlife Trust of India — International Whale Shark Day 2026 (opens in a new tab)
Conservation Organization
Convention on Migratory Species — Whale sharks and vessel strikes (opens in a new tab)
Understand it, compare it, then explore further
Start with the most common factual questions, then compare closely related observances and explore useful connections.
Frequently asked questions
When is International Whale Shark Day?
30 August annually in current conservation usage The documented recurrence rule is: 30 August.
Does International Whale Shark Day fall on the same date every year?
Yes. It uses a fixed annual date unless stronger evidence changes the pattern.
Is International Whale Shark Day an official public holiday?
The reviewed sources verify it within this scope: International / whale-shark conservation awareness. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.
Who established or recognizes International Whale Shark Day?
The reviewed sources identify National Commission of Natural Protected Areas (CONANP), Mexico as the proclaiming or establishing body.
Is International Whale Shark Day international or country-specific?
The documented scope is international or global: International / whale-shark conservation awareness. That does not mean every country treats the date as a public holiday or observes it in the same way.
How is this page verified?
The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-09-08.
When is International Whale Shark Day?
It is observed on August 30 each year.
Who declared International Whale Shark Day?
Wildlife Trust of India reports that Mexico’s National Commission of Natural Protected Areas, host of the 2008 International Whale Shark Conference, declared August 30 as the international day.
Was the first observance definitely in 2008?
The declaration is documented in 2008, but that does not by itself establish the first separately observed annual edition, so this guide does not assign an inaugural year.
Why is whale shark conservation important?
Whale sharks are Endangered, range across large marine areas and can face threats including fisheries interactions and vessel strikes.
Other observances on August 30
These observances are also listed on August 30, 2027.
August 30 Victory Day
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A/RES/65/209
National Grief Awareness Day
Local-government proclamations consistently recognize August 30 and identify Angie Cartwright as the 2014 founder; no federal legal-holiday status or exclusive current national facilitator…
Popular Consultation Day
Timor-Leste Law No. 10/2005 designates August 30 as Popular Consultation Day, a fixed-date national public holiday; current Government holiday notices retain that status, and UN records est…
Summer Bank Holiday (England and Wales)
GOV.UK