Home   Sun & Moon   Summer Solstice

When and What is the Summer Solstice?

Solstices are opposite on either side of the equator, so the Summer Solstice in the Northern Hemisphere is the Winter Solstice in the Southern Hemisphere and vice versa.

Illustration image

Stonehenge, England during the Summer Solstice.

Some believe that Stonehenge (2500 BCE) in England was built to help establish when the Summer Solstice occurred.

©bigstockphoto.com/dubassy

Northern Hemisphere Summer Solstice

(North America, Central America, Europe, Asia, Northern Africa)

June Solstice in Washington DC, District of Columbia, USA is on
Wednesday, June 21, 2017 at 12:24 AM EDT (Change city)

June Solstice in Universal Coordinated Time is on
Wednesday, June 21, 2017 at 04:24 UTC

Southern Hemisphere Summer Solstice

(Australia, New Zealand, South America, Southern Africa)

December Solstice in Washington DC, District of Columbia, USA is on
Wednesday, December 21, 2016 at 5:44 AM EST (Change city)

December Solstice in Universal Coordinated Time is on
Wednesday, December 21, 2016 at 10:44 UTC

First Day of Summer?

The first day of spring, summer, fall and winter can either be defined using astronomical events like solstices and equinoxes, or they can be determined based on meteorological factors, average temperatures.

In the USA and some other areas in the Northern Hemisphere, the Summer Solstice marks the first day of summer. However, the official date for the first day of summer varies depending on the country's climate.

Topics: Astronomy, Seasons, December, June, Sun, Solstice

Advertising

Astronomical Season Calculator

You might also like

December Solstice Facts

10 things you may not know about the December Solstice, the shortest day of the year in the Northern Hemisphere. more

December solstice illustration

December Solstice

The December solstice is also known as the summer solstice in the Southern Hemisphere and the winter solstice in the Northern Hemisphere. more