Lisbon in September 2026: weather and reviews, air and water temperature, is it possible to swim? Is it worth going, prices in hotels and excursions. What to do and see in Lisbon in September, where to go in Portugal – says Eurotraveler.
Lisbon is the southernmost and, in addition, western capital of continental Europe. Due to its unique geographical location on the Atlantic coast, it enjoys not too hot, but at the same time not particularly cold weather all year round.
Which naturally contributes to its tourist attractiveness – during the peak summer months, the Portuguese capital is crowded with tourists. Excitingly implementing opportunity to wander for a long time ancient quarters and at the same time not faint overheat.
What is Lisbon like in September? Is it also hospitable in terms of climate and bad because of high prices? Or there is a significant outflow of travelers – should they at least work at some point?
We have studied the issue in detail and are ready to share the information we have collected. And let’s start, as always, with this:
Weather in Lisbon in September
At first glance, it seems no different from the summer one. An experienced meteorologist will notice that, purely statistically, there is a little more rain. But if an ordinary tourist pays attention to this, he will praise it.
For cool drops from the sky are for good. Especially when it gets hot.
Yes, the narrow streets here in early autumn used to getting hot and they do this almost every day! What can they do if, even in early September, Lisbon regularly experiences air temperatures of around +27-29 degrees Celsius during the day? And – really, only sometimes – and above +30 degrees?!
Luckily, this kind of hot hot weather doesn’t happen every day. And in general – not every year. Typically, the air in Lisbon in early September is less warm, with temperatures typically fluctuating in the range of +24-26 °C.
With the onset of evening, the readings of street thermometers seem to roll downhill, stopping only around +20 °C. But by midday the atmosphere has warmed up so much that it’s time to go to the beach rather than roam the old quarters. Moreover, in a city like the Portuguese capital: replete with hills and steep climbs.
How long does this feast of very summer temperatures last? Usually a couple of weeks, sometimes even three. But sometimes, even at the end of September, the weather in Lisbon does not want to change.
So in the 20s here you can find temperatures up to +30 °C. Although it is much more likely that Atlantic winds and greatly reduced daylight hours will lead to a drop in average daytime temperatures to +22-24 °C.
Do you like both options? We understand you – it’s much more pleasant to listen to the stories of old Lisbon in dresses, T-shirts and shorts, and not in a tightly buttoned windbreaker!
Worth remembering
that in case of hot weather certain preparations must be made. In particular, when going for a walk around the city, do not forget a cap or Panama hat in your room.
And the supply of water in the backpack should be significant. For the rains in Lisbon at the beginning of autumn are rare, the sun is shining almost without a breakand fresh sea breezes seem to be lost in the maze of city streets.
The length of daylight, by the way, is long: from 13 hours at the beginning of the month to just under 12 at the threshold of October. The sun rises around six-thirty in the morning and sets at 19-18.20.
What you need to know
The winds in Lisbon are not that strong, but you can feel them. And this should not be surprising – on the banks of a large river, and even at the place where it flows into the great Atlantic Ocean?!
But there is no need to be afraid of rain in Lisbon September, or even just cloudy days. No, sometimes they still happen.
But they bring more pleasant variety to the daily sunny routine, which is beginning to tire, than they cause inconvenience
And besides, who forbids you to ask about the weather forecast ahead of time? And plan some kind of country voyage on a day that is questionable in terms of precipitation.
For example, go see Sintra or visit one of the famous Portuguese monasteries?
You never know what you can do here – in just 3.5 hours you can get from Lisbon to Porto. Finding ourselves a full 300 kilometers north of the scene of the main events…
5-day weather forecast for Lisbon – worldweather.wmo.int/en/city.html?cityId=2.
Water temperature
Yes, you heard it right – you can swim in Lisbon in September. Not in it, of course, but on the beaches of the suburban resorts of Cascais and Estoril.
However, this activity not everyone will like it. Because the water in the sea, sorry, the Atlantic Ocean, off the coast, even at the beginning of autumn is warmed up to a maximum of +19-20 degrees Celsius.
That, against the backdrop of the wind and often a decent wave, does not excite much desire to swim
Taking a breath of sea air is a must. Even hang out for a couple of days in one of the Estoril hotels – please. But to take the plunge and experience obvious pleasure is the lot of only a few.
Prices 2026
But here, alas, we cannot please you – in September, Lisbon hosteliers are holding prices at a high level. Fairly believing that due to excellent weather conditions they will not be left without profit.
So renting a decent apartment, not just an overnight stay, will require costs of 120 €, or even more. Even really goodlike São Lázaro Bhuiyan Family Host (city center), hostels even ask for a double room from 70-80 € per night.
Among the “hospitality facilities” of a higher class, we will highlight the guest house Casa Belmonte, which is located 300 meters from the Marquis of Pombal Square.
Yes, the furnishings and area of the simplest rooms are very modest – especially for the asking price of 130 (approximately) euros per night. But the place is close to the city center and metro station. And in addition, it has a kitchen where you can cook your own food!
Renting separate and well-located apartments like PS Lisbon Flats (from 170 € per night) looks like a rather ruinous undertaking. But they are located in the very center and you can feel almost like a king (of Portugal)! And a kitchenette will allow you not only to save on food, but also to discuss your day’s impressions in a warm family atmosphere…
Cost of sightseeing tours around the city with a guide quite acceptable — A 3-hour walk around Lisbon will cost 25-30 €. And a one-day minibus trip from the capital to Sintra and Cape Roca costs only 70 € per person in 2026.
Things to do
Our position on the exact order in which to explore the interesting places of Lisbon is set out in the corresponding article. In this review, we will not be too vague and will only mention the main thing.
Seems like a “correct” development Baishu Districtspread around the central square of the capital city, Commerce. The narrow, winding streets of Alfama have preserved the ancient flavor. And the same Bairro Alta district, which does not adhere to the plan.
Which you definitely need to take the funicular to fully experience the unforgettable flavor of Lisbon. Well, save your energy – in September in Lisbon it is sometimes so hot that there is no time for walking.
A must see Belem Towerclearly sticking out against the background of other architectural monuments of the capital. During Ona’s time, it guarded the entrance to the mouth of the Tagus, and now it has turned into a recognizable city symbol.
Naturally we mention openwork Jeronimos Monasterya fine example of the Manwellino style, generous in stone carving. And the proud fortress of St. George, a simple but formidable citadel on a hill, arrogantly looking at the “ward” city.
Where to go
September is a wonderful month, exceptionally suitable for exploring Portugal. And even if you don’t plan to travel far from the capital, it will be possible to get a full-scale – correct – idea of the country!
After all, in the immediate vicinity of Lisbon there is not only the magnificent Sintra, which is only an hour’s drive away. In just 1 day you can see Obidos.
If you book an excursion, you will be able to “try on” a whole necklace of Portuguese pearls. Alcobasa, Batalha, Nazaré, Fatima – the names alone are like an invitation to visit some kind of fairy-tale world.
However, you can easily visit each of the designated places on your own. Moreover, regular buses from the Rede Expressos company go to the Alcobaça monastery or to Batalha.
The town of Nazaré on the Atlantic coast, famous for its big waves, unfortunately rarely sees especially large swells in early autumn. But who knows, maybe you will get lucky!
Another interesting place is located very close to Lisbon. We mean Cape Cabo da Roca with lighthouse – the westernmost point of Europe.
This is where you can really feel the power of the Atlantic Ocean. Look into the distance, soak in the salty air, imagine what the Portuguese sailors felt when they sailed to discover new lands. And what emotions did they experience when, months or years later, they returned to their native harbor?
- What to see in Alcobas in 1 day
- How to get to Batalha on your own
- When big waves come to Nazaré
© Eurotraveler
