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Porto's Guindais hillside above the Douro River: colorful houses with orange tile roofs climbing a steep rocky slope beside an old stone city wall, with a riverside road and parked cars below

City Europe

Porto

Porto is a city in Portugal. Its houses climb hills above a river, close to the sea.

Porto is a city in Portugal, built on hills above the Douro River, a few kilometers from the Atlantic Ocean. It is Portugal's second city, after Lisbon, and its old center is a UNESCO World Heritage site. Portugal's 2021 census counted 231,800 people in the municipality of Porto.

Porto (Oporto) stands on the edge of a plateau above the deep valley of the Douro, a few kilometers from the Atlantic (Universalis); its historic center, the Luiz I Bridge and the Monastery of Serra do Pilar are on the World Heritage List. Census 22 March 2021: 231,800 in the municipality, Portugal's second city.

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Photo: Diego Delso, delso.photo, License CC BY-SA, via Wikimedia Commons

Discover Porto

Porto is a city in Portugal. Only Lisbon is bigger.

Long ago, the Romans called it Portus, which means 'port': a place where ships come in.

Universalis says Porto is Portugal's second city, after Lisbon, and calls it 'the capital of the North'. It is a big center for trade and industry, and for politics and culture too. UNESCO says the Romans gave the town the name Portus, which means 'port'.

Portugal's census of 22 March 2021 counted 231,800 people in the municipality of Porto.

Universalis: a city of Portugal a few kilometers from the Atlantic, the country's second city after Lisbon, 'the capital of the North', a large commercial and industrial center (metalworking, textiles, food processing) and a political and cultural hub; 263,131 people in 2001. UNESCO: the Romans named it Portus, 'port', in the 1st century BC.

Instituto Nacional de Estatística via City Population: Porto municipality 263,131 (2001), 237,591 (2011), 231,800 (census 22 March 2021); estimate 31 December 2025: 273,476.

Country
Portugal
People in the municipality (census, 22 March 2021)
231,800
Rank
Portugal's second city, after Lisbon: 'the capital of the North' (Universalis)
Name
the Romans called it Portus, 'port' (UNESCO)
Porto's Guindais hillside above the Douro River: colorful houses with orange tile roofs climbing a steep rocky slope beside an old stone city wall, with a riverside road and parked cars below
Photo: Diego Delso, delso.photo, License CC BY-SA, via Wikimedia Commons

Houses on the hillside

In this photo, colorful houses with orange roofs climb a steep, rocky hill. A road runs along the river below, with cars parked beside it.

This photo shows the Guindais hillside in Porto on 9 May 2012, seen from across the river. Houses with orange tile roofs climb a steep, rocky slope, a wall with battlements runs along the top, and a road with parked cars follows the river below.

Universalis says Porto's old town is made of tall, narrow houses with wide windows. UNESCO names some of its later buildings: the Palácio da Bolsa, the old stock exchange, built from 1842 to 1910, and São Bento railway station, built from 1900 to 1916.

Commons: 'Encosta dos Guindais, Porto, Portugal', own work by Diego Delso (uploader Poco a poco, his account), CC BY-SA 3.0, Quality Image, taken 9 May 2012; category 'Views of Encosta dos Guindais from Gaia' (taken from the south bank); no camera location.

Universalis: the old town is made of tall, narrow houses with wide windows. UNESCO: the historic center lies within the line of the 14th-century walls, two sections of which remain; it also has the São João theatre (1796–1798; 1911–1918), the Palácio da Bolsa (1842–1910) and São Bento railway station (1900–1916). Wikidata: Encosta dos Guindais (Q37175803) 0.97 km S of the city point.

Photo
the Guindais hillside (Encosta dos Guindais), 9 May 2012, by Diego Delso
Old town
tall, narrow houses with wide windows; on the World Heritage List since 1996 (Universalis)
Later buildings
Palácio da Bolsa (1842–1910) and São Bento railway station (1900–1916) (UNESCO)
Porto's Guindais hillside above the Douro River: colorful houses with orange tile roofs climbing a steep rocky slope beside an old stone city wall, with a riverside road and parked cars below
Photo: Diego Delso, delso.photo, License CC BY-SA, via Wikimedia Commons

A port for 2,000 years

People have lived where Porto stands for a very long time. Long ago, traders had a settlement there. Later, the town built stone walls around itself.

UNESCO says digs have shown that people lived at the mouth of the Douro River by the 8th century BC, when there was a Phoenician trading settlement there. The Romans called the place Portus, 'port'. In the 14th century, the town built stone walls around its medieval center and its harbor area; they were completed in 1376.

Universalis says the future kingdom of Portugal began to take shape around Porto, then called Portucale.

UNESCO: archaeological excavations show human occupation at the mouth of the Douro since the 8th century BC (a Phoenician trading settlement); the Romans named it Portus in the 1st century BC; by the 5th century an important administrative and trading center; in the 14th century massive stone walls were built around the two urban cores, the medieval town and the harbor area, completed in 1376; the historic center keeps much of its medieval street plan. Universalis: the future kingdom of Portugal began to organize around Porto (Portucale); from the 18th century the city organized the making and export of the Douro valley's wines, carried down the river by boat to its port; around the same time a steady emigration to Brazil began; two of its bridges and the Crystal Palace mark the beginnings of metal architecture.

8th century BC
people already lived at the mouth of the Douro; a Phoenician trading settlement stood there (UNESCO)
1376
stone town walls were completed around the medieval town and the harbor area (UNESCO)
Portucale
the future kingdom of Portugal began to take shape around Porto (Universalis)
Porto's Guindais hillside above the Douro River: colorful houses with orange tile roofs climbing a steep rocky slope beside an old stone city wall, with a riverside road and parked cars below
Photo: Diego Delso, delso.photo, License CC BY-SA, via Wikimedia Commons

Through the years

River, bridges and sea

A river called the Douro runs past Porto to the sea. Bridges cross the river's deep valley.

Universalis says Porto sits on the edge of a plateau above the deep valley of the Douro River, which bridges cross. The city's urban area reaches the Atlantic coast, where the port of Leixões lies near Matosinhos.

The Luiz I Bridge, which Wikidata says opened in 1886, is part of Porto's World Heritage site. Across the river, on the south bank, lies Vila Nova de Gaia.

Universalis: a few kilometers from the Atlantic, on the rim of the plateau that overlooks the deep cut of the Douro valley, crossed by three bridges (as the article describes it); the urban area extends to the sea (residential districts of Foz; the port of Leixões, near Matosinhos) and to the south bank (Vila Nova de Gaia). UNESCO: the property includes the Luiz I Bridge. Wikidata: Luiz I Bridge (Q1322447) opened 31 October 1886, 1.15 km S of the city point; São Bento railway station (Q579250) 0.51 km S.

Douro valley
Porto stands on the edge of a plateau above the deep valley of the Douro (Universalis)
Seaport
the port of Leixões, near Matosinhos, where the urban area reaches the sea (Universalis)
Luiz I Bridge
a bridge over the Douro, opened on 31 October 1886 (Wikidata); part of the World Heritage site (UNESCO)

Mild, with rainy winters

Porto has mild weather. Winters are rainy, and summers are drier.

The World Meteorological Organization's averages for Porto, from 1961 to 1990, show mild weather: the average daily high is 13.5 °C in January and 25.0 °C in August, and average lows stay above 5 °C in every month.

Most rain falls in winter. December is the wettest month, with 175.6 millimeters, and July the driest, with 15.6. The twelve months add up to about 1,265 millimeters.

WMO World Weather Information Service, Porto (Instituto Português do Mar e da Atmosfera; period 1961–1990 as given in the data): mean daily maximum 13.5 °C (Jan) to 25.0 °C (Aug); mean daily minimum 5.1 °C (Jan) to 15.0 °C (Jul). Precipitation 15.6 mm (Jul) to 175.6 mm (Dec); January 170.8 mm; sum of the months 1,265.0 mm. Mean days with at least 0.1 mm: 5 (Aug) to 17 (Jan).

Average daily highs (WMO, Porto, 1961–1990)
13.5 °C (January) to 25.0 °C (August)
Average daily lows (same table)
5.1 °C (January) to 15.0 °C (July)
Rain in a year (twelve months added up)
about 1,265 mm

Trade, industry and culture

Porto has factories, an old theater and an old stock exchange building. Two of its bridges are made of metal.

Universalis calls Porto a large center for trade and industry, with metalworking, textiles and food processing. From the 1700s, the city also organized the making and shipping of wines from the Douro valley, which boats carried down the river to its port.

Universalis says two of Porto's bridges and its Crystal Palace show the beginnings of building with metal. UNESCO names the São João theatre, first built from 1796 to 1798 and again from 1911 to 1918.

Universalis: a great commercial and industrial center (metallurgy, textiles, agri-food) and a political and cultural hub; from the 18th century Porto organized the production and export of the Douro valley's wines, mostly for England, which drew a British community; two of its bridges (one built by Gustave Eiffel) and the Crystal Palace bear witness to the beginnings of metal architecture; Vila Nova de Gaia on the south bank is where the wine is prepared. UNESCO: the São João theatre (1796–1798; 1911–1918); the Palácio da Bolsa (1842–1910); architecture from Romanesque, Gothic, Renaissance, Baroque and neoclassical to modern. Wikidata: Palácio da Bolsa (Q1371109) 1.04 km SSW of the city point.

Work
a large commercial and industrial center: metalworking, textiles, food processing (Universalis)
Metal buildings
two of its bridges and the Crystal Palace mark the beginnings of building in metal (Universalis)
Theater
the São João theatre (1796–1798; rebuilt 1911–1918) (UNESCO)
Porto's Guindais hillside above the Douro River: colorful houses with orange tile roofs climbing a steep rocky slope beside an old stone city wall, with a riverside road and parked cars below
Photo: Diego Delso, delso.photo, License CC BY-SA, via Wikimedia Commons

Porto on the map

Find Portugal on the globe. Porto is in the north, by the sea.

Porto lies at about 41.2° north and 8.6° west, in northern Portugal, on the hills above the mouth of the Douro River.

Measured from the city's center point on Wikidata, São Bento railway station is about 0.5 kilometer south, the Guindais hillside about 1 kilometer south, the Palácio da Bolsa about 1 kilometer south-southwest and the Luiz I Bridge about 1.2 kilometers south.

Porto lies at about 41.15° N and 8.61° W (Wikidata point Q36433; the Natural Earth/sheet point is 0.95 km from it). From the Wikidata point: São Bento railway station (Q579250) 0.51 km S; Encosta dos Guindais (Q37175803) 0.97 km S; Palácio da Bolsa (Q1371109) 1.04 km SSW; Luiz I Bridge (Q1322447) 1.15 km S.

Latitude
about 41.2° north
Longitude
about 8.6° west
River mouth
on the hills above the mouth of the Douro, in northern Portugal (UNESCO)

Amazing facts

  • Porto's name means 'port', a place where ships come in!

    UNESCO says the Romans gave Porto the name Portus, which means 'port'.

    UNESCO: the Romans gave the town the name Portus, or port, in the 1st century BC.

  • Long ago, boats carried goods down the river to Porto's port!

    Universalis says that from the 1700s, wines made farther up the Douro valley were carried down the river by boat to Porto's port.

    Universalis: from the 18th century, wines produced upstream on the schist slopes of the Douro valley were brought down by boat to Porto's port for export.

  • In Porto, July gets very little rain, but December gets lots!

    In the World Meteorological Organization's averages, December brings Porto more than eleven times as much rain as July: 175.6 millimeters against 15.6.

    WMO normals for Porto (1961–1990): December 175.6 mm, July 15.6 mm (about 11.3 times as much).

Words to know

port
a town or city with a harbor where ships load and unload goods
plateau
a wide area of high, fairly flat land
battlements
a wall top with gaps in it, like the top of a castle
stock exchange
a building where people buy and sell shares in companies
World Heritage site
a place UNESCO lists as important for everyone in the world
census
an official count of all the people in a country

Discovery challenge

  1. Porto is a city in which country?

    Porto is the second city of which country, after Lisbon?

    Universalis calls Porto the 'capital of the North' of which country?

    • Portugal
    • Spain
    • Italy
    Show the answer

    Portugal

    Portugal!

    Portugal.

    Portugal.

  2. Which river flows past Porto?

    Porto is built on hills above which river?

    Porto stands above the mouth of which river?

    • The Douro
    • The Thames
    • The Rhine
    Show the answer

    The Douro

    The Douro!

    The Douro River.

    The Douro.

  3. What does Porto's old Roman name, Portus, mean?

    UNESCO says the Romans named the town Portus. What does Portus mean?

    According to UNESCO, the Roman name Portus means what?

    • Port
    • Bridge
    • Hill
    Show the answer

    Port

    Port!

    Port.

    'Port'.

  4. In which year were Porto's old town walls finished?

    In which year were Porto's 14th-century town walls completed?

    UNESCO: the town walls around Porto's medieval center and harbor were completed in which year?

    • 1376
    • 1886
    • 1996
    Show the answer

    1376

    1376!

    1376.

    1376.

  5. Which month is the rainiest in Porto?

    In the World Meteorological Organization's averages, which month gets the most rain in Porto?

    WMO normals for Porto (1961–1990): which month has the most precipitation, 175.6 mm?

    • December
    • July
    • May
    Show the answer

    December

    December!

    December.

    December (175.6 mm).

Nearby places

Explore next

For parents & teachers

What children will learn

  • Locate Porto in northern Portugal, above the mouth of the Douro River.
  • Explain how a river mouth can make a good place for a port.
  • Describe how a city's buildings show different periods of its history.
  • Read a climate table for a place with wet winters and dry summers.

Recommended ages: 3 to 17 · About 15 minutes

Talk about it

  • Why might people build a town on hills above a river, instead of right beside it?
  • Why might a city build walls around its harbor as well as its center?
  • What can old buildings like a railway station or a theater tell us about a city's past?

Try at home or in class

  • Hillside town: stack small boxes up a slope of books to build a model of houses climbing a hill.
  • Rain bars: make a bar chart of Porto's monthly rain and compare December with July.
  • Time math: Porto's walls were completed in 1376. How many years ago is that?

Key vocabulary: port, plateau, battlements, stock exchange, World Heritage site, census

Where these facts come from

  1. Wikidata , Wikimedia Foundation (CC0 1.0)
  2. Natural Earth vector data , Natural Earth (NACIS) (Public domain)
  3. Porto , Encyclopædia Universalis
  4. Historic Centre of Oporto, Luiz I Bridge and Monastery of Serra do Pilar , UNESCO World Heritage Centre
  5. Portugal: Administrative Division (Districts and Municipalities) , City Population (Thomas Brinkhoff), from the Instituto Nacional de Estatística, Portugal
  6. Porto: climatological information (1961–1990) , World Meteorological Organization, World Weather Information Service
  7. File:Encosta dos Guindais, Oporto, Portugal, 2012-05-09, DD 06.JPG (Diego Delso) , Wikimedia Commons
  8. Wikimedia Commons , Wikimedia Foundation (Per file (public domain, CC0, CC BY or CC BY-SA); see each media record)

Checked, not yet human-reviewed. Last updated November 1, 2026. Spotted a mistake? Tell us.

Picture credits
  • Photo: Diego Delso, delso.photo, License CC BY-SA, via Wikimedia Commons · source · license