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Today, June 1, 2025, marks the 150th anniversary of Japan’s meteorological services.

It was on this day in 1875 that the Tokyo Meteorological Observatory—now known as the Japan Meteorological Agency—was established within the Ministry of Home Affairs in Akasaka, Tokyo. That day, Japan officially began observing weather and earthquakes. Over the past 150 years, Japan’s meteorological services have evolved dramatically, from the dawn of observation to the cutting-edge era of satellites and AI technology.

🌈 Looking to the Sky Is Looking to the Future

In the past, people relied on experience and intuition to predict the weather. But over the course of 150 years, observation technology and forecasting accuracy have made tremendous strides. Today, we can track localized rain clouds an hour in advance—right from our smartphones.

What we now take for granted is thanks to the meticulous observations and technological developments built up by generations of predecessors. In a country like Japan, frequently struck by natural disasters, meteorological services have become a vital infrastructure for protecting lives and livelihoods.

✉️ Special Stamps to Commemorate 150 Years

To mark this milestone, Japan Post issued a commemorative stamp series on May 28, 2025. The stamps feature designs that highlight the evolution of meteorological services through photographs and illustrations—depicting observation instruments, weather satellites, and scenes from past observatories. Each stamp encapsulates the rich history of humanity’s connection with the sky on a small piece of paper.

🔗 More details (in Japanese):
Japan Post | Special Stamps: “150th Anniversary of Meteorological Services”

☁️ A Day to Look Up at the Sky

Though the weather changes daily, observation and recording have continued uninterrupted for 150 years. And looking ahead, meteorological services will continue to play a vital role in disaster prevention, agriculture, transportation, and many other aspects of our daily lives.

On this landmark day, why not take a moment to look up at the sky?
There, you might sense the enduring gaze of those who have long watched the skies—always with the future in mind. ☀️