As you already know, weather and climate are two different but related things. The first is the state of the atmosphere here and now, and the second is its average values over decades. In turn, the climate is also not a uniform phenomenon, it is different in this or that part of the planet. In a nutshell, this is why it is always hot in Africa, cold in the Arctic, and in temperate latitudes we see and experience the whole range of weather phenomena. Koppen climate classification is used to classify various climate types. In this article, we will understand what they are and how to read them.
Koppen climate classification is the oldest, most widespread, and hence the basic system of classification of all the huge variety of climate types, which was first introduced in 1884 and is still in use today. The system was invented by Wladimir Köppen, one of the world’s foremost meteorologists and scientists of German origin — hence the unusual surname in the name of the system, which is exactly spelled with two superscript characters. It is based on the scientist’s knowledge and observations of what plants grow in a particular region of the world depending on its longitude and latitude. So this is a Koppen climate classification explanation in short.
The most convenient and frequent form of representation of Koppen climate classification is a map of the world with the same name, colored in different colors corresponding to a particular type of climate, which in turn are denoted by a combination of the letters. In total, the classification divides the climate into 30 types marked in lower and upper case letters — for example, BSh, Dwa, and the like, at the sight of which the first question arises: What the hell is this and how do I remember it? Calm down. All of these types of climate are grouped into only five large groups, so to explain them, let's go the other way around — from the simple to the complex things.
The Koppen climate classification map identifies tropical climate (A), dry climate (B), temperate or mild climate (C), continental climate (D), and polar climate (E). Important: as you can see, the letters are just the first five letters of the Latin alphabet, not the first letters in the names of the climate types. From the names, it is also easy to understand what features each of them has. However, here is a brief deciphering:
You see, under general consideration, it's very simple with the climate on the planet. But given that it is very diverse and does not fit into just five types, further each of these groups is divided into several subgroups or subtypes, which, in turn, are divided into several more — in the four types of climate except the first, tropical, which is characterized by less weather diversity. In particular, here is their complete list taken from the Koppen climate classification map:
Koppen climate classification map / Wikipedia
Tropical climate (A) — 3 main subtypes with 2 additional in the latter, 4 in total
Dry climate (B) — 2 main subtypes with 2 additional in each, 6 in total
Temperate or mild climate (C) — 3 main subtypes with 3 additional in each, 9 in total
Continental climate (D) — 3 main subtypes with 4 additional in each, 12 in total
Polar climate (E) — 2 main subtypes
Koppen climate classification map. Valerya Milovanova / Windy.app
Well, I hope that looks complete. Again, notice the capital letters (not lowercase letters) in dry and polar climates. They speak of the higher level of these types about the others.
So where does this diversity come from? Each of these types is characterized by a different set of weather phenomena typical of the area but first, as you can see yourself from the chart above, these are temperature of certain values and amount of precipitation. For example, in a tropical climate, it is 18 °C (64.4 °F) or higher on average with heavy precipitation, and in the Arctic, it is 10 °C (50 °F) with dry weather. However, we will omit them in this article as listing them would take too much time.
To answer the question in the title of the article, translating the Koppen climate classification into the language of geography and outdoor spots is also quite a lengthy task, but here are the largest cities in the 20+ major parts of the world with their respective climate types. Just find the one you live in or come from and you will know it for sure. To get the weather forecast for these cities, follow the links. For other places, refer to the map above and then seach them on this site.
As you can also see from this list the climate can and is the same according to the Köppen climate classification not only in parts of the world close to each other but also very far apart ones, located on opposite sides of the globe. For example, the temperate climate with dry and hot summer (Csa) is the same for Los Angeles, USA, as for Athens, Greece, or the temperate climate with dry winter and warm summer (Dwb) is the same for Cusco, Peru, as for Irkutsk, Russia. We can likely find the same climate as your region in another part of the world and make other similar discoveries by examining the different types of climate on the map.
You can find a detailed map of Koppen climate classification in various meteorological and scientific sources. Tip: Choose only official ones like the National Weather Service in the US.
In the Windy.app for sports and outdoor weather forecasts, you can explore the climate in a special Weather History (Weather Archive) section, which you can access from the screen of each spot. To do this, scroll down it.
Weather History in the Windy.app for iOS
Here you can find accurate weather data for four basic parameters — temperature, precipitation, wind, and atmospheric values for each day for the last 10 years (2012–2021) as well as averages for each month, year, and the entire observation period.
Detailed Weather History in the Windy.app for iOS
Weather History in the Windy.app for iOS
The wind history is also separately and conveniently presented on the Weather Map.
Wind History Map in the Windy.app for iOS
In addition, to understand the climate of a particular region even more accurately, go to a chat on the spot in the Community section of the app to ask about it from the locals, who know the weather in their home regions as good as professional meteorologists. In addition, they will explain it in simple words like "Hey, from March to April on this part of the coast is a terrible wind, so to ride a kite, you better come in June to September". And things like that. More: so you can even find a companion for your sport if you're around too.
Coney Island chart of the New York outdoor spot in the Windy.app for iOS
Text: Ivan Kuznetsov
Cover photo: Dustin Weist / Unsplash
What is the difference between weather and climate