The summer solstice marks the beginning of the celestial summer season. The summer solstice occurs every year in June in the Northern Hemisphere and in December in the Southern Hemisphere.
In meteorology, June 1 is the first day of summer in the Northern Hemisphere. The summer solstice is also the celestial end of spring. Ancient cultures built monuments such as Stonehenge in England and Machu Picchu in Peru to follow the annual progression of the Sun. People living in the Northern Hemisphere will see the early morning and late sunset and the sun’s high arc in the sky every day.
At what time does the summer solstice fall this year?
This year, the summer solstice in the Northern Hemisphere falls on Tuesday, June 21 at 9:14 UTC (2:44 pm IST). At the summer solstice, the Sun is most visible in the sky for the year, and near the summer solstice a full moon is less visible in the sky.
Since the summer solstice occurs in June in the Northern Hemisphere, it is known as the June solstice. Meanwhile, the summer solstice occurs in December in the Southern Hemisphere, and is, therefore, known as the December solstice in areas south of the equator.
For people living in the Northern Hemisphere, the summer solstice is the longest day and shortest night of the year.
After the summer solstice, the Sun will again move south. A solar day, which is the time it takes Earth to rotate around its axis so that the Sun appears in the same position in the sky, is longer than the 24 hours around the solstice, according to NASA.
Is the longest day of the year also the hottest?
Despite the fact that the June solstice is the longest day of the year for those living in the Northern Hemisphere, it is not the hottest day of the year. Instead, the Northern Hemisphere witnesses the hottest weather in late July and August.
This is due to an effect called the interval of seasons, according to which earth sky, The difference of seasons is the reason why it is hotter in the mid afternoon than in the afternoon. After a long winter, the Earth takes some time to warm up. Even in the month of June, there is snow and ice in some places of the earth. We experience the most extreme heat only after the Sun melts the ice and warms the oceans.
Although snow and ice have been melting since the beginning of spring, and meltwater and rainwater are pouring down through the ice at the top of glaciers, the flow from the glaciers is no longer as great as it would be in July.
As a result, the Northern Hemisphere will witness the hottest weather in July or August, a time when the days begin to shorten again.
The Science Behind the Summer Solstice
Earth has seasons because the imaginary axis of the planet is tilted. The northern summer solstice is a moment in time when Earth’s north pole points more directly toward the Sun than at any other time of year, marking the start of the astronomical summer season in the Northern Hemisphere and the astronomical winter season in the Northern Hemisphere. is a symbol of. Southern hemisphere.
Therefore, all places north of the equator will see more than 12 hours of daylight and all places south of the equator will see days less than 12 hours.