WHY ARE ONLY THE DRY AND RAINY SEASONS PRESENT FROM SOUTHERN MEXICO TO BRAZIL? - CULTURE VOCABULARY - 2025

Only the dry and rainy seasons are present from southern Mexico to Brazil, that is, between the Tropic of Cancer and that of Capricorn, because the tropical climate predominates.

This climate is characterized by warm temperatures throughout the year, with an average of 25 to 28 ° C, and does not present frosts or drops in temperature below 0 ° C.

For all this exposure to the sun, the tropics do not experience the four seasons like the rest of the regions of the planet, and the dry and rainy seasons prevail.

Another characteristic of these areas is the presence of the equinox, which causes the number of hours of sunshine to be almost equal to the hours of darkness.

Characteristics of the dry and rainy seasons

Each of these stations has its own characteristics that directly influence the environment and the development of fauna and flora.

Dry season

During this season the rains are not very abundant. From April to September, rainfall occurs in the northern hemisphere, while in the southern hemisphere it occurs from October to March.

Rainy season

Rain is the result of a combination of warm, tropical air masses and large bodies of water.

The rainy season, also known as the monsoon season, is the one in which most of the average annual rainfall of a region is taken as a reference. In tropical climates the rainy season usually occurs in summer.

Characteristic ecosystem of the tropical climate

The savannah is the most representative ecosystem of the tropical climate. The savanna landscape is characterized by tall grass and short trees, and is the type of vegetation characteristic of the tropical climate. It is the result of the combination of dry and humid climates.

The color of the vegetation during the dry season tends to yellow, while in the wet season green shoots are reborn.

Since frosts do not occur in the tropical climate, it is possible to grow bananas and coffee, among other species.

There is a great variety of herbivorous animals, thanks to the varied amount of flora that this climate allows.

Impact of climate change on tropical climates

With the change of the seasons, the natural environment varies its colors and the reproduction cycles of animals.

Scientists warn of the serious risks that threaten the preservation of flora and fauna in regions with a predominance of tropical climate.

For more than five decades, warnings have been made about the impact of climate change in the region of the poles.

However, the region around the tropics will feel the effects of global warming long before the poles.

There is evidence that tropical regions have experienced more drought in the last five decades.

Scientists have noted that organisms in the tropics have very little resistance to abrupt temperature changes, as they are used to even temperatures throughout the year.

The implication of this is that the arid subtropical zones bordering the tropics are expanding, and the consequences could be devastating for both ecosystems and human activities such as agriculture and livestock.

References

1. Vince Stricherz, "Warming most evident at high latitudes, but greatest impact will be in tropics", 2005. Retrieved on November 30, 2017 from washington.edu
2. Kevin Carr, “What Are Tropical Wet and Dry Climates?”, 2017. Retrieved on November 30, 2017 from sciencing.com
3. Oscar Chavez, "The 4 Most Important Tropical Climate Characteristics", 2017. Retrieved on November 30, 2017 from lifepersona.com
4. ISC-Audubon, "Köppen Climate Classification", 2013. Retrieved on November 30, 2017 from thesustainabilitycouncil.org
5. Angel Palerm, “Mexico”, 2017. Retrieved on November 30, 2017 from britannica.com