Tropical climates are characterized by monthly average temperatures of 18 ℃ (64.4 ℉) or higher year-round and feature hot temperatures. Annual precipitation is often abundant in tropical climates, and shows a seasonal rhythm to varying degrees. The annual temperature range in tropical climates is normally very small.

The climate in tropical rain forests is constantly warm and moist. The average rainfall in most rain forests is very heavy, about 200–450 centimeters (80–180 inches) per year.

The tropics receive a great amount of direct solar energy, which produces more evaporation than higher latitudes. The warm, moist air rises, condenses into clouds and thunderstorms, and falls back to earth as precipitation. More evaporation results in more precipitation.

“Heavy precipitation” refers to instances during which the amount of rain or snow experienced in a location substantially exceeds what is normal. When more moisture-laden air moves over land or converges into a storm system, it can produce more intense precipitation—for example, heavier rain and snow storms.

At high latitudes and especially in the polar regions, the low precipitation is caused partly by subsidence of air in the high-pressure belts and partly by the low temperatures. Snow or rain occur at times, but evaporation from the cold sea and land surfaces is slow, and the cold air has little capacity for moisture.

The Equatorial Climate is characterised by hot average temperature all year round and high monthly precipitation, typically no less than 60 mm a month with annual precipitation tending to be over 2000mm. The diurnal temperature range is greater than the annual temperature range.

Altitude or height above sea level – Locations at a higher altitude have colder temperatures. Temperature usually decreases by 1°C for every 100 metres in altitude. 4. This means that coastal locations tend to be cooler in summer and warmer in winter than places inland at the same latitude and altitude.

Description. Tropical rain forests have a type of tropical climate in which there is no dry season—all months have an average precipitation value of at least 60 mm (2.4 in).

More heavy rain is one of the hallmark signs of climate change. As the atmosphere warms, more water evaporates from soils, plants, lakes, and oceans. So when this additional water vapor condenses into precipitation, it leads to heavier rain — or when cold enough, heavier snow.

The most common types of precipitation are rain, hail, and snow.

In Tropical Monsoon Climates the ITCZ can interact with other climatic patterns such as offshore winds that form as a result of deep lows over land. In combination with the ITCZ this helps produce enormous seasonal rains. The second distinctive climate feature of tropical regions is the dry season.

High precipitation occurs in zones where there is the continual and rapid ascension of air masses. In the tropics, there is a convergence of trade winds in the ITCZ which ascend due to the low pressure. Also, the evaporation rates are high. Thus, moist air rises as it cools.

In particular, this study revolves around what scientists call organized deep convection – in short, large thunderstorms. These storms make up about five percent of the weather systems in the tropics but are responsible for about 50 percent of tropical rainfall.

The polar cell originates at lower latitudes, its warm air rises and move to higher altitudes, where the cooled air will descend due to the high pressure. The Ferrel cells winds are complicated; it is a boomerang flow of air at high altitudes towards the tropics that join sinking air at lower latitudes near the Hadley cell.