Everything you need to know about what is the solstice and why is it important.

Table of Contents

10 min read.

→ Summer Solstice

→ Winter Solstice

When They Occur

→ History


A flowery wreath with the sun shining through it in a green field.

Summer Solstice

The summer solstice, often celebrated as the longest day of the year, marks a significant time in the solar calendar. This event occurs when one of the Earth’s poles reaches its maximum tilt toward the Sun. For the Northern Hemisphere, this happens around June 20-22, when the Sun travels along its longest path through the sky, culminating in the most extended period of daylight of the year.

In contrast, the Southern Hemisphere experiences the summer solstice around December 21-22. Celebrations of the summer solstice are steeped in ancient traditions, from the Scandinavian Midsummer to the Native American Sun Dance, each embodying the joy and fertility associated with prolonged sunlight.

WInter Solstice

Conversely, the winter solstice is the shortest day and longest night of the year and occurs when one of the Earth’s poles has its maximum tilt away from the Sun. This event marks a critical turning point in the year as it signifies the rebirth of sunlight, slowly growing longer each day. In the Northern Hemisphere, this takes place around December 21-22, while the Southern Hemisphere celebrates it around June 20-22.

Various cultures hold festivities during this time to celebrate the return of light, such as the Roman Saturnalia and the more contemporary Yule traditions across many northern European countries.

When They Occur

The solstices are anchored by the Earth’s axial tilt and its orbit around the Sun. The specific dates can vary slightly from year to year due to the Earth’s irregular orbit. For the Northern Hemisphere, the summer solstice can occur between June 20 and June 22, while the winter solstice falls between December 21 and December 23. In the Southern Hemisphere, the dates are reversed, with the summer solstice occurring in late December and the winter solstice in late June.

Solstice at Stonehenge


The recognition and celebration of the solstices have ancient origins, with numerous prehistoric sites believed to have been constructed with these events in mind. Perhaps the most famous of these is Stonehenge in England.  A massive stone circle that aligns with the sunrise on the summer solstice and sunset on the winter solstice, highlighting its significance to the Druids and other ancient peoples.

Similarly, other cultures built monuments and developed rituals around these solar events, viewing them as essential turning points in the seasonal cycle, often associated with gods and goddesses of light and fertility.


The solstices highlight the Earth’s complex orbit and axial tilt and have been a cause for human observation and celebration for millennia. These events not only signify changes in the season but also remind us of our ancestors’ connection to and reliance on the rhythms of the cosmos.

Today, they still inspire festivities worldwide, bringing people together to celebrate the natural cycle of light and darkness. Whether through the quiet reflection during the short days of winter or the joyous festivals in the long days of summer, the solstices continue to hold significant cultural and personal meaning.

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