Lisbon gets the headlines. Porto gets the better afternoons. The city is built vertically — tiled facades climbing from the Douro riverbank to the Clerigos tower — and May is the month before the cruise ships start docking three-deep at Ribeira. You walk the Dom Luis bridge, cross to Vila Nova de Gaia, look back, and understand immediately why this place keeps showing up on those lists.

The Sao Bento railway station is worth seeing even if you are not going anywhere. The azulejo panels lining the main hall tell Portuguese history in blue tiles across 20,000 individual scenes — one of the most underrated interiors in Europe, and ten minutes from the Ribeira waterfront on foot.

May runs dry and warm without the August heat that makes the uphill streets punishing. The city’s neighbourhoods — Bonfim, Cedofeita, Massarelos — are compact enough to explore on foot across two days, each one different enough to feel like a new place.

Sicily in May is the version of the island that the summer brochures photograph but the summer visitors rarely see. The Ballaro market in Palermo runs every day — fishmongers, citrus stalls, arancini vendors — and at 22 degrees it is the right temperature to eat your way through it without needing to find shade.

Taormina’s Greek Theatre sits with the Etna behind it and the sea below, and in May you can stand there without being funnelled through by a tour group. The walk from the Corso Umberto through the town’s medieval lanes and out to the theatre takes around forty minutes if you do not stop, and you will stop.

Sicily was the most-mentioned European destination in travel forums and newsletters throughout late 2025. That attention mostly translates to July bookings. May still feels like the island before it fills.

Lisbon is officially one of Europe’s most visited cities, which makes the question of when to go more important than most. May lands after the spring backpacker season and before the summer peak. Alfama — the old Moorish neighbourhood where the miradouros look out over the river — is walkable without the gridlock of August, and the pastel de nata at Pasteis de Belem has a queue that takes twelve minutes rather than forty-five.

The city has seven hills, which means walking it is genuinely physical. The tram catches the hills you do not want to climb — but walking down from Graca or Sao Jorge Castle at the end of the day, with the Tejo lit up below, is worth planning your route around.

Barcelona is one of the few cities where the famous things are actually worth seeing — the Sagrada Familia at 8am with a timed entry ticket, the Eixample grid when the morning light hits the Modernista facades, the Boqueria when it is open rather than in the tourist-trap downward spiral it becomes by noon. May gives you 14 hours of usable daylight and temperatures that make the beachside walk from Barceloneta to Poblenou comfortable rather than draining.

The Born neighbourhood is the city at its best for walking: bookshops, wine bars, the medieval ruins visible through the glass floor of the Born market, narrow streets that predate the Eixample grid entirely. Two hours here beats one hour at any major sight.

Golden Week — Japan’s national holiday cluster — runs April 29 to May 5, and Tokyo during Golden Week is packed. Arrive May 7 or later and the city changes register: the tourists from the cherry blossom season have gone, the summer humidity has not arrived, and the fresh green season is in full effect. Meiji Shrine, Yanaka, the garden at Shinjuku Gyoen — everywhere is photogenic in a way that is harder to replicate in July.

Tokyo is enormous but its best neighbourhoods are compact and walkable: Yanaka for old Tokyo atmosphere, Shimokitazawa for independent shops, Nakameguro along the canal, Asakusa for Senso-ji without the 9am rush. Any one of these could occupy a half-day at walking pace.

Istanbul is the only city in the world that sits on two continents, and the walk across the Galata Bridge — fishing lines on both sides, the Golden Horn below, Sultanahmet skyline behind you — costs nothing and takes fifteen minutes. In May, it is 19 degrees and the tulip season that opened in April is winding down, leaving the city with good light and manageable queues at Hagia Sophia.

The food scene is reason enough. Karakoy for breakfast, the Spice Bazaar for an hour, then across to Kadikoy on the Asian side for lunch at a meyhane. The ferry costs about eighty cents and runs every half hour.

Five villages strung along a Ligurian cliff, connected by a coastal trail that was, for several years, partially closed due to landslide damage. By May 2026, sections of the Sentiero Azzurro are open between Corniglia and Vernazza — a two-hour walk with sea views the whole way.

The villages themselves are small, and in July they are essentially impossible to enjoy at street level. May traffic is light enough that Manarola’s main lane — the one with the coloured houses reflected in the harbour — is photographable without someone’s elbow in the frame.

Lima is consistently ranked among the world’s best food cities, but it is underwalked by people who treat it as a stop before Machu Picchu. May marks the start of Peru’s dry season, which means the garua fog that covers Lima from June through November has not yet arrived. The Malecon de Miraflores runs along the clifftop above the Pacific for several kilometres, with paragliders launching off the edge at weekends and the city spread out behind you.

Barranco, the bohemian neighbourhood one suburb south of Miraflores, is forty minutes on foot from the cliff walk: street art, independent galleries, the Puente de los Suspiros, and a concentration of good restaurants in a compact area.

Amsterdam in May has two notable fixed points: King’s Day on April 27 and the Keukenhof tulip garden running through mid-May. The garden itself is 45 minutes from Amsterdam by train and bus — seven million flowers on 32 hectares, most of them in peak bloom through mid-May.

Within the city, the Jordaan neighbourhood rewards slow walking: independent bookshops, brown cafes, the Anne Frank House (book timed entry months ahead), and the Nine Streets shopping district radiating off the main canals. The canal ring is a UNESCO site and genuinely looks like the postcards, which in most places is not the case.

Athens in May is warm but not the 36 degrees that makes the Acropolis hill a hardship in August. The Acropolis Museum below the hill is excellent — cleaner and more informative than the site itself in many ways — and in May you can walk Monastiraki market and the Plaka lanes in the morning before the coaches arrive. The food around the central market (Varvakeios Agora) is significantly better than anything in the tourist zone.

The view from Lycabettus Hill at sunset — the Acropolis with the city spreading in every direction behind it — takes about forty minutes to climb and is free.

Copenhagen is cold in May by Mediterranean standards, but 16 degrees is perfectly walkable, and the city is built for it: flat, compact, and with a harbourfront that connects Nyhavn to the Opera House to the newer Nordhavn district on foot in under an hour. Nyhavn itself — the row of 17th-century coloured houses along the canal — is full of outdoor seating by May, which is when Danes decide winter is officially over and eat outside regardless of temperature.

The food scene justifies the trip alone. Copenhagen has more Michelin-starred restaurants per capita than almost anywhere in Europe, but the smorrebroed lunch counters and the street food at Reffen market make the same point at a quarter of the price.

Delhi in May is hot. Genuinely hot — 36 degrees average, with days pushing 40 before the monsoon arrives in late June. This is not a city for afternoon sightseeing in May. It is, however, a city where the pre-dawn and early morning hours are extraordinary: Humayun’s Tomb at 7am, when the gardens are in shadow and the Mughal sandstone is catching the first light, has almost no one in it.

Chandni Chowk market in Old Delhi operates on its own register entirely — one of the densest, loudest, most sensory streets in Asia, and the parathas at Paranthe Wali Gali are worth the navigation. The key is timing: mornings before 11am, then retreat to air-conditioning until late afternoon.