Day Guide for Tuesday September 16th 2025 What are the holidays on September 16th 2025?

This is our day guide for Tuesday September 16th 2025 which shows you at a glance what's happening on this day around the world. Using the calendar on this page, you can look at a day guide for any day. Why not look up your birthday to see which holidays you share it with?

Holidays on September 16th 2025

Libya: Martyrs' Day

Remembers Libyans killed or exiled under Italian rule on the date of the execution of a notable resistance fighter.

Malawi: Public Holiday

A public holiday in Malawi to allow citizens to vote in the general elections.

Malaysia: Malaysia Day

In 1963, the former British colony of Singapore and the East Malaysian states of Sabah and Sarawak, joined the Federation of Malaya

Mexico: Independence Day

Commemorates the start of the Mexican War of Independence against Spain on September 16th 1810

Papua New Guinea: Independence Day

Commemorates the day Papua New Guinea gained its indepence from Australia in 1975

Saint Kitts and Nevis: National Heroes Day

Honours distinguished individuals for significant contributions to the nation

Not a Public Holiday

Venezuela: Virgin of Coromoto

Commemorates the appearance of the Virgin Mary to local indigenous tribes near Guanare in the 16th century.

Observances on September 16th 2025

USA: Anne Bradstreet Day

On the anniversary of her death in 1672, we celebrate the works of this early North American poet.

United Nations: International Day for the Preservation of the Ozone Layer 

The ozone layer, a fragile shield of gas, protects the Earth from the harmful portion of the rays of the sun, thus helping preserve life on the planet.

USA: Mayflower Day

Find out the dates, history and traditions of Mayflower Day

USA: National Cinnamon Raisin Bread Day

Find out the dates, history and traditions of National Cinnamon Raisin Bread Day

United Kingdom: National Guacamole Day

A day to dip into this tasty Mexican Dip on Mexico's National Day

USA: World Play-Doh Day

Play-Doh Compound is the #1 reusable modeling compound, with over 100 million cans produced each year.

USA: National Step Family Day

National Stepfamily Day is a wonderful opportunity for stepfamilies to come together and celebrate their unique bonds.

USA: Trail of Tears Commemoration Day

The Trail of Tears was a series of forced relocations of approximately 60,000 Native Americans.

United Nations: International Interventional Cardiology Day

Discover the impact of International Interventional Cardiology Day, a celebration of advancements in heart care and awareness for cardiovascular health.

September 15th 2025 | Go to Today | September 17th 2025

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General Information for September 16th 2025
There are 7 public holidays today.
Day 259 of 2025
106 days left in 2025
Week 38 of the year
On this Day in History
1987 - The Montreal Protocol is signed to protect the ozone layer from depletion caused by atmospheric pollution.
1980 - Saint Vincent and the Grenadines join the United Nations.
1908 - The General Motors Corporation is founded.
1400 - Owain Glyndwr is declared Prince of Wales by his followers.