The climate of Rylland is different in some areas, ranging from a harsh cold climate in the North, to the humid subtropical areas in the South. The average temperature is 1.9 degrees celsius. The south and/or east of the country were prone to cyclones, tornados, and blizzards, as well as earthquakes and volcanic eruptions. During summer, the temperature of Rylland can get into 34 degrees celsius. The hottest recorded temperature in the country is at May 7, 2018 in the city of Marcoza, Gabriella, where the temperature in the city alone is 56 degrees celsius (132.8 degrees fahrenheit). During winter, the temperature of Rylland can get into -19 degrees celsius, with the coldest recorded temperature being in the city of Requia in December 24, 2009 with a temperature of -43 degrees celsius (-56.2 degrees fahrenheit). That also makes Requia one of the coldest cities of Teryana and Irkans, and the coldest major city in Rylland, Teryana, and Irkans.

The environment of the country overall is good because of the lack of plastic and garbage in the wildlife of the country. The country's national parks are Dallonsk-Hanskeya National Park, Lantzen National Park, and the Savangala National Park. The country's environment is also home to multiple trees in forest and taigas, most of which were as large as an ten-story building. The country is also known for being one of the least polluted nations in Teryana and Irkans, due to the ban of plastic in rural areas and forested areas of the country.

Rylland's flora and fauna is very diverse because of it's geography. Sunflowers, orchids, roses, alliums, and more flowers can be founded in the country's forests and plains. The national flower of Rylland is the lotus, which can be found in lakes and ponds across the country, as well as the Heigs and Bonice rivers. The national animal of the country is the Giant Antler Deer, which is an descendant of the long-extinct Irish Elk. Some fauna of Rylland include mammals such as bears, foxes, wolves, deer, rabbits, moose, whales, dolphins, and more. Reptiles such as geckos, snakes, lizards, crocodiles, sea turtles, and tortoises. Amphibians such as frogs, salamanders, and caecilians. Fish such as salmon, cod, sharks, and more. Insects such as flies, mosquitos, dragonflies, horseflies, bees, ladybugs, beetles, and more.

Because Rylland has different kinds of animals, fish, plants, and insects, there were hundreds of wildlife sanctuaries and zoos in the country. The largest zoo in the country is the Osmarch Zoo, which is home to most animals inside and outside of Rylland. Osmarch Zoo is also the second largest zoo in Teryana, behind only the Agore Zoo in Brylia, and the 5th largest zoo in Irkans.

Rylland is divided into 13 provinces, 189 districts, and a number of municipalities. Rylland borders 5 countries, 6 if the French Collectivity of Bealtia is included. It shares a maritime border with Al Moliha, the Aikan Islands, the United Kingdom, and the Sula Archipelago of Lunaritania. Rylland also has disputes, one with Lunaritania over Lake Chadur, and three in Baldoland, such as Udong-Sayalikan, small collections of farmland in the Bonice River, and multiple villages in Baldoland's Lymantania department.