Tallinn vs Vienna

Tallinn

Tallinn has a humid continental climate moderated by its Gulf of Finland coastline. Summers are mild and pleasantly long with up to 18 hours of daylight in June. Winters are cold, dark, and occasionally dramatic — the sea can partially freeze and the Old Town under snow is spectacular but icy. The transitional seasons are short. Northern lights are visible on clear nights from November through March.

Vienna

Vienna has a continental climate with cold winters, warm summers, and distinct seasons. Spring and autumn are mild but changeable. Summers can be hot, while winter occasionally brings snow to the city.

Tallinn

Tallinn has excellent public transport covering the whole city by tram, trolleybus, and bus. Public transport is completely free for registered residents — one of only a handful of cities in the world to have made this permanent policy since 2013. Tourists pay, but fares are very cheap. The Old Town is entirely walkable. Bolt (founded in Tallinn) makes taxis among the cheapest and most transparent in Europe.

Walkability: The Old Town and adjacent districts are highly walkable on flat ground, though Toompea Hill involves a moderate climb. Cobblestones in the Old Town can be tough with luggage — rolling bags struggle. Winter icing significantly affects walkability. Overall the city is compact and pedestrian-friendly for its size.

Vienna

Vienna has an excellent, integrated public transit system run by Wiener Linien covering U-Bahn (metro), trams, and buses. The network is clean, punctual, and runs late on weekends. A 24-hour pass is just eight euros and covers all modes.

Walkability: The historic center (Innere Stadt) is compact and highly walkable, with most major sights within a 20-minute walk of Stephansplatz. The Ringstrasse boulevard encircling the old city is about 5 km and makes a pleasant walk or tram ride.