World Metrology Day 2026: World Metrology Day is celebrated on May 20 annually. This day is observed to raise the importance of Metrology. Metrology Day is prompted by the Measurement Standards Laboratory(MSL). Seventeen nations celebrated World Metrology Day on 20th May 1875. Metrology is nothing but the study of the atmosphere. World Metrology Day 2026 was organised by the World Meteorological Organisation (WMO). On World Metrology Day, several activities and events are organised to show the importance of the atmosphere. World Metrology Day is an annual celebration, and it is celebrated on 20th May 1875. In this article, we have covered World Metrology Day, its history, theme, significance, and quotes. We have listed them below one by one. This article will help you to know a detailed explanation of World Metrology Day History, World Metrology Day 2026 Theme, World Metrology Day 2026 Significance, World Metrology Day 2026 Quotes, and some important FAQs related to World Metrology Day 2026.

Check the list of Important Days in May 2026

World Metrology Day History

• The first World Metrology Day was held in 1961.

• The World Meteorological Organisation came into force in 1950.

• World Metrology Day commemorates the renowned meter convention in Paris, France in the year 1875.

• After the convention, the Bureau International des Poids et Mesures(BIPM) and the International Organisation of Legal Metrology(OIML) were established to ensure the importance of metrology.

•  The function of the World Meteorological Organisation is important to people’s health and safety.

World Metrology Day 2026 Theme

• Every year the theme is assigned for every day. It is allotted for each day to honour the importance and raise awareness of that special day. 

• Likewise, the World Metrology Day 2026 theme is yet to be announced.

World Metrology Day 2026 - Significance

• BIPM and OIML coordinate World Metrology Day to measure the atmosphere.

• Weather and climate are the intense parts of the world, and it is the reason for climate change.

• Nowadays, most people are exposed to severe pollution and exposure to hazards, environmental degradation, and urbanisation.

• World Metrology Day plays a vital role in the safety of people’s lives and their welfare.

• World Metrology Day is celebrated to show the importance of metrological and hydrological services to the people.

World Metrology Day 2026 Quotes

We are provided with World Metrology Day 2026 quotes by famous personalities here

• “Of all the departments of science, no one seems to have been less advanced for the last hundred years than that of metrology” - Thomas Jefferson

• “Tonight’s weather forecast for tonight: it’s dark. It’s getting dark all night, and the light is widespread throughout the morning”. - George Carlin

Here we are providing the complete details of World Metrology Day. The aspirants who are preparing to score good marks in the General Awareness section can refer to this article. It will help candidates to get knowledge about World Metrology Day.

World Metrology Day 2026 - Some Important FAQs 

Q. When is World Metrology Day celebrated?

World Metrology Day is celebrated on 20th May every year.

Q. Where can the aspirants get the complete details of World Metrology Day 2026?

We are providing the aspirants with the full details and explanations about World Metrology Day 2026 here.

Q. What is the theme of World Metrology Day 2026?

The theme of World Metrology Day 2026 is yet to be announced.