Life without allergies and smog: the world’s cleanest cities in 2026

Clean air, green parks and a comfortable urban environment are becoming key factors when choosing where to live and travel. In 2026, experts identified cities where the environment truly enhances quality of life: from Europe to Australia. Which cities have managed to minimise smog, reduce pollution levels and create a healthy environment for their residents? Find out which cities made it into the ranking of the world’s cleanest and what sets them apart

An insurance policy is a guarantee of your safety and peaceful stay outside Ukraine

BUY

With rising levels of air pollution and an increase in allergic conditions, environmental considerations are becoming a key factor when choosing where to live and travel. In 2026, analysts from international environmental organisations and urban planners compiled an updated ranking of the world’s cleanest cities — those where it is easier to breathe, more comfortable to live and safer for one’s health.

Several factors were taken into account when compiling the list: air pollution levels (PM2.5), the amount of green space, access to public transport, noise levels, water supply, and the environmental policies of the city authorities.

Leaders of the environmental ranking

Oslo (Norway) confidently takes first place. For several years running, the city has remained a benchmark for an eco-friendly approach: car use is being actively reduced here, electric transport is being developed, and the majority of residents live within walking distance of parks and forests. Oslo is also investing in sustainable energy and ‘smart’ urban infrastructure.

In second place is Vilnius (Lithuania). The Lithuanian capital demonstrates an impressive balance between urbanisation and nature: over a third of its territory is covered by green spaces, and air pollution levels remain among the lowest in Europe.

Third place goes to Helsinki (Finland) — a city with a well-thought-out environmental strategy, the cleanest air and a well-developed public transport system. Measures to reduce the carbon footprint and improve the energy efficiency of buildings are being actively implemented here.

Also in the top rankings are:

▪️ Vienna (Austria) — one of Europe’s most liveable cities with a well-developed public transport system and numerous parks

▪️ Stockholm (Sweden) — a leader in sustainable development and environmental innovation

▪️ Munich (Germany) — combines industrial potential with high environmental standards

▪️ Singapore — an example of a ‘city in a garden’, where nature is integrated into the urban landscape

▪️ Canberra (Australia) — a capital city with low pollution levels and a high quality of life

▪️ Sydney (Australia) — a major metropolis with a focus on preserving the natural environment

▪️ Reading (UK) — one of Britain’s ‘greenest’ cities with an active environmental policy

why it matters

Clean air has a direct impact on health: it reduces the risk of allergies, asthma and cardiovascular diseases. In green cities, stress levels are also lower thanks to access to nature, peace and quiet, and a high-quality urban environment.

Furthermore, such cities are becoming increasingly attractive for living, investment and tourism. They are actively implementing ‘green’ technologies, developing cycling infrastructure and public transport, and creating comfortable conditions for residents and visitors.

Don't want to miss important updates and useful articles? Subscribe to our weekly newsletter!

The trend towards sustainability is growing

Experts note that competition between cities for the status of being environmentally friendly is intensifying.

Municipalities around the world are investing in sustainable development, switching to renewable energy sources and reducing emissions.

For travellers, this means more destinations where you can not only relax but also experience true comfort — free from smog, noise and congested streets.

Medical insurance is also a crucial part of your preparation. For example, purchasing a policy through Visit Ukraine allows you to cover medical expenses abroad and avoid unexpected costs in case of force majeure.

Reminder! Where should you look today for the perfect travel destination — one with atmosphere, comfort and vivid experiences? The new ranking of the best destinations for 2026 reveals unexpected frontrunners and tried-and-tested cities that are well worth adding to your itinerary right now. Find out which cities made the list and why they have become tourists’ favourites.

Want to know more? Read the latest news and useful materials about Ukraine and the world in the News section.

Our recommendation for a safe and comfortable trip: 

Visit Ukraine Insurance - insurance for a safe stay abroad without unnecessary expenses;

Green Card - compulsory car insurance for traveling abroad;

Visit Ukraine Tickets - book tickets for buses, trains, and airplanes to/from Ukraine and between cities around the world;

Private Lawyer service - professional legal support on visa and migration issues;

Visit Ukraine Merch - buy patriotic clothing and accessories with worldwide delivery.

© 2018-2026, Visit Ukraine. Use, copying or reprinting of materials on this site is permitted only with a link (hyperlink for online publications) to Visit Ukraine.

All rights reserved.