Every year around the end of July, the questions start arriving: is everything closed in August? Is it too hot? Should we come in September instead? We’ve spent every August of the last decade in Lisbon, and the honest answer is that August is a genuinely different city — quieter in some ways, busier in others, and completely manageable if you stop trying to visit it like it’s May.
Here’s what actually happens in the city in August, and how we’d plan a trip around it.
What the Heat Is Really Like
Typical August days sit around 28–30°C with clear skies and almost no rain. That’s warm, not brutal — and the Atlantic helps. Most afternoons the nortada, the northwesterly sea breeze, picks up and takes the edge off by late afternoon.
The exception is the vento leste: when the wind swings round and comes off the interior instead of the ocean, temperatures jump past 35°C and occasionally near 40°C. These spells usually last two to four days, and locals treat them as a signal to change their plans rather than push through them. Nights are the reward — it drops to around 18–19°C, and Lisbon does its best living outdoors after 8pm.
Our tip: Check the forecast the night before, not the week before. An August week in Lisbon is rarely uniform — you’ll get two hot days, four pleasant ones, and one that’s better spent by the water.
The Great August Disappearing Act
August is when Portugal takes its holiday. Schools are out, the city empties, and small independent places — the neighbourhood tasca, the family bakery, the butcher, the tiny hardware shop — close for two or three weeks with nothing but a handwritten encerrado para férias taped to the door. There’s no central list. You simply walk up and find out.
15 August is a public holiday (Assunção), and it’s the deadest day of the month for anything that isn’t tourist-facing.
What stays open: every museum, monument and major attraction, often with extended summer hours. The big markets. Supermarkets. Anything on the tourist map. The city’s landmarks don’t take August off — the neighbourhood does.
That trade-off is better than it sounds. Yes, your favourite little lunch spot might be shut. But the traffic disappears, the metro is empty at 9am, parking becomes possible, and residential neighbourhoods take on a slow, almost small-town quality that you never see the rest of the year.
Our tip: If there’s a restaurant you’ve read about and set your heart on, message them before you fly. Most answer Instagram messages even while closed.
How to Shape an August Day
The single biggest mistake we see is people applying a normal sightseeing rhythm to a hot city: out at 11am, walking hills at 2pm, exhausted and miserable by 4pm. Lisbon has a shape to its summer days, and it’s worth borrowing.
Before 11am is the best part of the day. Cool, low sun, empty streets. This is when you do Alfama, the castle, the miradouros, the tram 28 — anything involving hills and cobbles.
1pm to 5pm is for lunch and shade. Long lunch, then something indoors: a museum, the aquarium, an air-conditioned café. Or the apartment. Nobody here is climbing to a viewpoint at 3pm in August, and neither should you.
After 6pm the city comes back to life. This is the golden stretch — the light turns, the terraces fill, and dinner at 9pm feels completely normal. Plan your evening properly and you get five good hours out of it.
Where to Go When It Hits 35°C
The water. The Cascais train line from Cais do Sodré runs along the coast, and Carcavelos is 25 minutes away. Our full guide to the beaches near Lisbon covers which to pick — but on the hottest days, the answer is simply the nearest one.
The ferry. The cheapest air conditioning in Lisbon is the open top deck of a cacilheiro. Ten minutes across the Tagus from Cais do Sodré to Cacilhas, breeze the whole way, and on the other side a run of riverside restaurants looking straight back at the city. Go late in the afternoon and stay for sunset.
Sintra. It sits in its own damp, forested microclimate and runs several degrees cooler than the city — sometimes noticeably more. It’s a genuine escape on a bad heat day, and a proper day out in its own right.
Gulbenkian. The gardens are one of the great cool, green, quiet spaces in the city, and the museum next to them is superb and blissfully air-conditioned.
What’s Actually On
August’s cultural calendar slows down, but it doesn’t stop — and what’s left tends to be outdoors and cheap.
Jazz em Agosto at the Gulbenkian runs at the turn of the month, with concerts in the open-air amphitheatre under the trees. It’s been going for over forty years and it’s still the best-programmed thing in the city in August.
Jardim de Verão, also at the Gulbenkian, is free — concerts, DJ sets, talks and films in the garden through the summer.
Sunset sessions at the castle bring DJ sets and live music up to Castelo de São Jorge in the evenings, which is a fairly unbeatable setting for a drink.
And on summer Fridays there’s free jazz in the Jardim do Arco do Cego, a neighbourhood garden most visitors never find — a ten-minute walk from our Entrecampos apartment.
The One Thing to Check Before You Book
Air conditioning. A large share of Lisbon’s rental stock sits in beautiful old buildings that have never had it installed, and listings are often vague — “fans provided”, “cool in summer”, or simply silent on the subject. In an ordinary month that’s fine. In an August heat spell, it decides whether you sleep.
Ask directly, and ask specifically whether the bedrooms are air-conditioned rather than just the living room. Ours are, in every room — it’s one of the things we refuse to compromise on, precisely because we live through these summers ourselves.
So — Should You Come in August?
Yes, if you want long warm evenings, easy beach access, a city with no traffic, and you’re happy to move around the heat instead of fighting it. Prices for flights and stays are often softer than in June or September, too.
Maybe not, if you’re travelling with very young children who won’t nap through the afternoon, or if your trip is built entirely around a list of small, specific restaurants — a few of them will be shut.
If your dates are still flexible, our guide to the best time to visit Lisbon makes the case for other months. But August has never been the disaster people expect. It’s just a city on holiday, and it rewards anyone willing to live on its schedule for a few days.
Coming in August? Every room in our apartments is air-conditioned, and we’ll tell you honestly which of our neighbourhood favourites are closed for férias during your dates. Browse our apartments and book direct.