While the weather may change from one hour to the next, the climate of a place is what it does, on average, year after year. The world climate zones are determined by the amount of sun energy received in a region, its distance from the sea and the elevation of the land. The most significant factor is latitude, as the equator gets much more direct sunlight than the poles, but altitude and ocean currents will come into play as well. It may be possible for a mountain to have snow nearby that is close to the equator, or a coastal desert to have cool water very near it. This guide explains how climate zones of the world are classified, what the world climate map is telling us, and how each major climate zone gets its flavour.
How Climate Zones Are Classified (Köppen Classification System)
The vast majority of scientists use temperature, precipitation and patterns of vegetation to classify the Earth into specific zones. The Köppen climate classification system was developed by Wladimir Köppen and is still used worldwide and is used in most maps and textbooks. There are two other systems which are important though less used in everyday practice. There are two other systems worth mentioning, although they are not as frequently used in everyday practice. The Thornthwaite system is more strongly based on evapotranspiration and soil moisture, and the Trewartha system modifies Köppen's boundaries to more closely reflect the vegetation lines. Of the three, Köppen's remains the one that is still the basis of most world climate classification charts today.
World Climate Zones Map - Visual Overview
The map of the world's climate zones usually divides the world into climate belts based on latitude, with the tropics lying close to the equator, dry belts near 20° and 30° latitude, temperate climate zones in the greater part of the middle latitudes, and polar caps beyond 60°. In other locations, these bands are curved, as well, which is why a climate zones map seldom has perfectly straight lines. For example, the Gulf Stream raises the temperature in western Europe higher than would be expected for its location.
Quick Reference Table - Major Climate Zones at a Glance
Zone | Latitude Range | Temperature | Rainfall | Example Region |
| Tropical | 0°–23.5° | Hot year-round | High, often year-round | Amazon Basin, Indonesia |
| Dry (Arid/Semi-Arid) | 15°–35° | Hot days, cool nights | Very low | Sahara, Australian Outback |
| Temperate | 30°–60° | Mild, seasonal | Moderate | Western Europe, southeastern USA |
| Continental | 40°–70° | Cold winters, warm summers | Moderate | Central Canada, Siberia |
| Polar | 60°–90° | Cold year-round | Low | Antarctica, northern Greenland |
The 5 Major Climate Zones and Their Key Features
Tropical Climate Zone
This band is located between about 0 and 23.5 degrees latitude and experiences relatively small temperature fluctuations between different seasons of the year. The rainfall is copious, and in certain sub-types, on an almost daily basis. Tropical rainforest zones, such as the Amazon Basin, remain moist all year long, and tropical savanna areas (parts of East Africa) experience a clear wet and dry season. The biome normally consists of dense rainforests, tall grasses, and rich biodiversity.
Dry (Arid & Semi-Arid) Climate Zone
Dry zones are mainly located in the region of 15 to 35° latitude, where precipitation is low. In extremely dry deserts such as the Sahara, precipitation is virtually absent, and day and night temperatures are extremely hot and cold, respectively, and in semi-arid steppe areas, like parts of Central Asia, the amount of precipitation is adequate to support grassland rather than bare sand. Vegetation remains sparse in all areas, with water-saving species.
Temperate Climate Zone
Between 30 and 60 degrees latitude, there are clear seasons, but not like the poles or the tropics. Deciduous forests and agricultural crops thrive in regions with mild winters and warm summers, such as western Europe and the southeastern United States. Rainfall is generally moderate, with relatively equal amounts throughout the year.
Continental Climate Zone
The coldest regions of continental zones are located between 40th and 70th latitude and experience the largest amplitude of temperature fluctuations. It gets very cold in the winter, very warm in the summer, and the range between the two may be extreme. Much of Siberia and central Canada lie squarely in this region where coniferous forest is the dominant vegetation form and is frequently referred to as taiga.
Polar Climate Zone
Polar regions remain cold throughout most or all of the year after about 60° latitude. In tundra areas, the short summer thaw means mosses and low shrubs can survive, while in ice cap areas, such as the interior of Antarctica and much of Greenland, there is no thaw. The quantity of precipitation is generally low because cold air does not contain much water.
Climate Zones vs. Biomes - Are They the Same?
They can be confused, but they refer to different things. The climate zone classification is based only on the temperature and rainfall patterns. In turn, a biome is the ecosystem that develops in that climate, influenced by its plants, animals and soil. A tropical rainforest is a biome found in the tropical climate zone, but the climate zone is merely the background on which the rainforest is created.
Factors That Influence Climate Zones
There are a few forces that determine a climate destination. The baseline temperature for a region is determined by latitude, which dictates the angle of the sun's rays falling on that region. An increase in height decreases temperature, regardless of latitude. Warm or cold currents move in the ocean, affecting local land temperatures. Moisture and heat are transported by wind patterns on continents. Humidity is influenced by distance from the sea, and inland regions typically have lower humidity and more extreme values. Mountain ranges can obstruct rain and cause dry areas on the other side (topography).
Conclusion
All these zones demonstrate the extent to which geography influences life around the world. Climate types and type characteristics in every climate area of the world are determined by a few factors: the sun, wind, water and elevation. This is an easily understood system to help read a world climate map and understand how two areas of a similar latitude can feel worlds apart.
FAQs
How many climate zones are there in the world?
There are generally 5 climate zones, although the Köppen system divides these into over a dozen sub-types.
What are the 5 main climate zones?
They are tropical, dry, temperate, continental and polar, each with its own set of temperatures and rainfall.
What do you mean by the Köppen climate classification system?
It is the most popular classification of global climates according to temperature, precipitation and vegetation, developed by Wladimir Köppen.
In which climate zone is India located?
Most of India is in the tropical realm, but the northern parts close to the mountains cross over into cooler temperate and even alpine climates.
What is the difference between Climate and Weather?
Climate is the average of the weather over a long-term period (decades), and weather is the condition of the atmosphere and oceans over a short time (today).
Why are the climates of coastal areas milder than the climates of inland areas?
The near-coastal areas have a lower temperature in summer and a higher temperature in winter than landlocked areas because oceans cannot heat and cool as quickly as land.
Can a country have more than one climate zone?
Yes, because large countries such as the USA, China and India are spread across several zones, because of their size and latitude range.
What is the impact of mountains on the climate zones?
As the elevation goes up, the temperature goes down, so tropical countries can have snow on top of mountains due to their latitude.
