The summer of 2025 is beginning to feel in Argentina with higher temperatures and longer days, but with knowledge When is the summer solstice 2025? This accurately indicates the official start of the new season.
It’s officially summer It will begin on Sunday, December 21 at 3:03 p.m.As confirmed by the Marine Hydrographic Service. This astronomical event, known as CoupIt marks the beginning of the warmest season and longest days in the Southern Hemisphere.
This period, traditionally associated with holidays and New Year’s parties in our country, is characterized by Longer duration of sunlight.
The summer solstice is a crucial astronomical phenomenon that occurs when… The sun reaches its maximum declinationEither north or south relative to the equator.
The word “coup” comes from the Latin “coup”Coup“, which means “still sun”, referring to the moments when the sun seems to stop its progress in the sky after reaching its highest or lowest point. This situation has its main consequence The longest day of the year appears In the opposite hemisphere.
Although the beginning of summer is popularly associated with December 21, The exact dates of the solstices and equinoxes may vary slightly each year. According to the explanations of the organization affiliated with the Ministry of Defense, this difference is due to the fact that “the tropical year, which is the period of time between two successive passages of the sun during the winter equinox, is equal to 365.2422 average solar days, which is not divisible by the year of the Gregorian calendar, which amounts to 365.2425 average solar days.”
In this sense “Only after a 400-year cycle do the seasons begin again on the same daysalmost”.
For the Southern Hemisphere, the summer solstice occurs when this region of the planet reaches its closest point to the sun. At the same time, Antarctica Of land, geographically close to Argentina, located in The closest position of the starWhich directly affects temperatures. On the other hand, the Northern Hemisphere is located at its farthest point from the sun, marking the beginning of winter. This phenomenon is one of two annual events in which the maximum or minimum proximity between the hemisphere and the Sun is recorded.
The tilt of the Earth’s axis toward the sun during the summer solstice is what causes the day with the greatest number of hours of sunlight in the Southern Hemisphere.
Since this December, The days will start to get progressively shorterand culminates with the autumnal equinox scheduled for March 2026.
It is necessary to remember that both Summer and winter are opened by solsticesWhile the fall and spring seasons begin with the equinoxes. The equinoxes are the times when the sun is located directly above the equator, resulting in the same length of day and night throughout the world.
These celestial events have different meanings depending on the geographical location from which they are observed. The December solstice, which marks the beginning of summer in the Southern Hemisphere, simultaneously opens winter in the Northern Hemisphere.
This content was produced by the LA NACION team with the help of artificial intelligence