Nagasaki Memorial Day – Aug. 9, 2026

Nagasaki Memorial Day
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Every August 9
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Nagasaki Memorial Day is observed annually on August 9, remembering the devastating atomic bombing of 1945. This solemn day calls for reflection on the profound human cost of war and a renewed commitment to global peace. Join in vigils, educational events, and discussions advocating for nuclear disarmament.

Want to sponsor Nagasaki Memorial Day? Learn how

Expected Nagasaki Memorial Day Deals

For Nagasaki Memorial Day, the focus shifts from commercial deals to profound remembrance and advocacy for peace. Organizations like the Nagasaki Foundation for the Promotion of Peace and ICAN (International Campaign to Abolish Nuclear Weapons) encourage donations to support educational programs and survivor assistance. Many peace groups partner with local businesses for awareness campaigns, encouraging patrons to learn about nuclear disarmament. Consider supporting humanitarian efforts and initiatives promoting global security. We will update this page with confirmed live events and awareness campaigns as August 9 approaches.

Platform Guide for Nagasaki Memorial Day

X/Twitter

Mention @NatlToday and use #NagasakiMemorialDay. Share educational resources, survivor stories, and calls for peace.

Facebook

Mention National Today (facebook.com/nationaltoday) and use #NagasakiMemorialDay. Organize or share details about local vigils and community discussions.

YouTube

Subscribe to @NationalToday for holiday video content. Watch documentaries and historical accounts related to the atomic bombing and peace movements.

Social Media Tips for Nagasaki Memorial Day

Individuals

Observe a moment of silence at 11:02 AM JST (10:02 PM ET on August 8), the time the bomb was dropped. Educate yourself on the history and impact of nuclear weapons.

Creators

Produce short-form educational content or explainer videos about the history of Nagasaki, the human cost of war, and the importance of nuclear disarmament.

Brands

Partner with peace organizations for awareness campaigns or donate a portion of sales to support humanitarian aid and nuclear non-proliferation efforts.

Organizations & Brands for Nagasaki Memorial Day

  1. Nagasaki Foundation for the Promotion of Peace

    Established in 1983, this foundation works to convey the realities of the atomic bombing and promote peace through educational activities, research, and international exchange programs. It manages the Nagasaki Atomic Bomb Museum and Peace Park.

  2. ICAN (International Campaign to Abolish Nuclear Weapons)

    A global civil society coalition working to promote adherence to and full implementation of the Treaty on the Prohibition of Nuclear Weapons. ICAN was awarded the Nobel Peace Prize in 2017 for its efforts.

  3. Doctors Without Borders (Médecins Sans Frontières)

    Founded in 1971, this international humanitarian organization provides emergency medical aid in conflict zones, areas affected by epidemics, and natural disasters. Their work often highlights the devastating health consequences of war.

  4. Peace Boat

    A Japan-based international NGO that promotes peace, human rights, and sustainability through global educational voyages. It regularly hosts Hibakusha (atomic bomb survivors) to share their testimonies worldwide.

  5. Patagonia

    Founded in 1973 by Yvon Chouinard, Patagonia is an outdoor apparel company known for its strong environmental and social activism. They frequently support grassroots organizations working on peace, justice, and environmental protection.

  6. Ben & Jerry's

    Founded in 1978 in Vermont, this ice cream company is renowned for its commitment to social justice and progressive values. Ben & Jerry's often uses its platform to advocate for peace, human rights, and environmental causes.

  7. Lush Cosmetics

    A British cosmetics retailer founded in 1995, Lush is known for its handmade products and ethical campaigning. The company frequently supports grassroots organizations and campaigns focused on environmental protection, animal rights, and peace initiatives.

Nagasaki Memorial Day Hero

Dr. Takashi Nagai

Dr. Takashi Nagai (1908–1951) was a Japanese physician and survivor of the atomic bombing of Nagasaki. Despite suffering from leukemia due to radiation exposure, he dedicated his remaining years to caring for other survivors and documenting his experiences. His writings, including 'The Bells of Nagasaki,' became powerful testimonies to the horrors of nuclear war and pleas for peace, inspiring countless readers worldwide.

History of Nagasaki Memorial Day

On August 6, 1945, to compel Japan to surrender and end World War II, U.S. bomber Enola Gay dropped Little Boy, the first atomic bomb ever used in wartime, on the Japanese city of Hiroshima. The explosion killed an estimated 80,000 people, and thousands more died later because of radiation exposure. Japan had caused many Allied casualties during the war, and despite the devastation, did not surrender. As a result, the U.S. decided to drop a second bomb to compel Japan to surrender.

On August 9, 1945, three days after the first hit, U.S. bomber Bockscar dropped a bomb called Fat Man on the city of Nagasaki. The bomb contained power equivalent to 22,000 tons of T.N.T. The explosion had devastating consequences on Nagasaki, causing the death of an estimated 40,000 people. More inhabitants died later from burns, radiation sickness, and other injuries. But, the bomb’s effect was diminished, because Nagasaki was nestled in narrow valleys between mountains and had a smaller population. After this second bombing, Japanese emperor Hirohito announced his country’s surrender on a radio broadcast on August 15, 1945 (Japanese time).

On September 2, 1945, a formal surrender agreement was signed aboard the American battleship U.S.S. “Missouri” anchored in Tokyo Bay, leading to the end of World War II. The two bombings caused the deaths of an estimated 70,000 to 135,000 people in Hiroshima and 60,000 to 80,000 people in Nagasaki. For that reason, Nagasaki Memorial Day is observed to commemorate the bombing victims, promote peace and raise awareness of the importance of avoiding more wars and the destructive potential of nuclear weapons.

Nagasaki Memorial Day timeline

August 6, 1945
The First Atomic Bombing

The first atomic bomb ever used in war is dropped on the Japanese city of Hiroshima.

August 9, 1945
The Second Atomic Bombing

The second atomic bomb is dropped on the Japanese city of Nagasaki.

August 15, 1945
The Emperor Makes an Announcement

Japanese emperor Hirohito announces Japan’s surrender on a radio broadcast.

September 2, 1945
Japan Formally Surrenders

The formal surrender agreement is signed by Japanese foreign minister Mamoru Shigemitsu and general Yoshijirō Umezu.

How Businesses Can Celebrate Nagasaki Memorial Day

Local businesses can observe Nagasaki Memorial Day by hosting moments of silence or displaying educational materials about peace and nuclear disarmament. Consider donating a portion of sales to organizations like the Nagasaki Foundation for the Promotion of Peace or ICAN. Businesses can also facilitate community discussions or art installations that promote understanding and remembrance, fostering a commitment to a world free of nuclear weapons.

Nagasaki Memorial Day FAQs

When is Nagasaki Memorial Day?

Nagasaki Memorial Day 2026 falls on a Sunday, August 9, commemorating the atomic bombing of Nagasaki, Japan. It’s a day for solemn reflection and renewed calls for peace.

How many people died in the Nagasaki bombing?

The atomic bombing of Nagasaki on August 9, 1945, resulted in an estimated 39,000 to 80,000 immediate deaths, with many more succumbing to injuries and radiation sickness in the following months and years.

What is the significance of Nagasaki Memorial Day?

Nagasaki Memorial Day holds profound significance as a global reminder of the catastrophic consequences of nuclear warfare and a powerful call for peace. It reinforces the commitment to preventing such devastation from ever happening again.

What is the Treaty on the Prohibition of Nuclear Weapons?

The Treaty on the Prohibition of Nuclear Weapons (TPNW) is a legally binding international agreement that prohibits signatory states from developing, testing, producing, manufacturing, possessing, stockpiling, transferring, using, or threatening to use nuclear weapons. It entered into force on January 22, 2021.

How to Observe Nagasaki Memorial Day

  1. Spread the word

    The bombings in both Hiroshima and Nagasaki caused untold destruction and cost so many lives. Spread the word to ensure that people remain aware that war leads to nothing but destruction.

  2. Visit Nagasaki Peace Park

    Visit Nagasaki Peace Park to commemorate the atomic bombing victims. There are Peace Symbol Zones that house monuments donated by countries around the world. You can also visit Nagasaki National Peace Memorial Hall for the Atomic Bomb Victims nearby.

  3. Visit the Nagasaki Atomic Bomb Museum

    Pay a visit to the Nagasaki Atomic Bomb Museum and learn more about the history of the atomic bombing of Nagasaki. Be reminded that war is horrific enough, to begin with, not to mention the aftermath.

5 Facts About Nagasaki You Need To Know

  1. It was originally a fishing village

    Nagasaki was originally a fishing village with little historical significance until it became an important trading port in the 1550s.

  2. It has a World Heritage Site

    Hidden Christian sites in the Nagasaki Region, recognized as a World Heritage Site on January 30, 2018, are located in Nagasaki Prefecture, Kyushu.

  3. There is a famous abandoned island

    Hashima Island commonly called Gunkanjima is an abandoned island that is a reminder of Japanese war crimes as a site of forced labor.

  4. There is “the Netherlands” in it

    Huis Ten Bosch is a theme park in Sasebo, Nagasaki, recreating the Netherlands by displaying life-sized copies of old Dutch buildings.

  5. It has one of Japan’s largest Chinatowns

    Nagasaki Shinchi Chinatown is one of the three largest Chinatowns in Japan.

Why Nagasaki Memorial Day is Important

  1. It’s a reminder

    Looking back at history, we realize that war is a complete disaster. We should always try our best to avoid it, and peace should always be the only option for everyone.

  2. It’s to raise awareness

    We all want to live in a safe world. Nagasaki Memorial Day raises awareness that eliminating nuclear weapons remains a priority, so there would be no more ‘hibakusha.’

  3. It’s a chance to expand horizons

    Nagasaki Memorial Day is a chance for us to expand our horizons. We can learn more about the history of our own country, about war, and in particular, about why nuclear weapons should never be developed.

Nagasaki Memorial Day dates

Year Date Day
2026 August 9 Sunday
2027 August 9 Monday
2028 August 9 Wednesday
2029 August 9 Thursday
2030 August 9 Friday