Best Time to Visit Portugal: Weather, Beach Season and Festivals

Spring is the safest bet for a first trip. By mid-April Lisbon reaches 20°C most afternoons, the miradouros are clear, and you can walk all day in Lisbon, Sintra and Porto without the summer heat on the hills. The Alentejo plains around Évora are green and full of poppies and cork-oak shade, a look they lose completely by July.

March and April still bring rain fronts off the Atlantic, especially in the north, so pack a light waterproof. May is the sweet spot: dry, 23°C in Lisbon, long evenings, and the sea warm enough for a short swim on the south coast of the Algarve (around 18°C). June is warmer again and still below the July crowds until the last week, when the Portuguese school holidays begin.

Easter week (Semana Santa) is busy in Braga, whose processions are the biggest in the country, and in the Algarve, where Spanish and Portuguese families take the first beach break of the year. In 2026 Easter Sunday falls on 5 April and in 2027 on 28 March; book hotels for those weekends early.

Beach season on the Algarve runs from June to September, with the hottest, driest and busiest weeks from mid-July to the end of August. Expect 28-31°C days in Faro, Lagos and Tavira, almost no rain, and hotel prices that can be double their May or October level. Spanish visitors arrive in late July, and the whole of Portugal seems to be on holiday in the first three weeks of August.

Inland is a different story. Évora, Beja and the Douro Valley regularly pass 35°C and sometimes 40°C in July and August, which makes midday sightseeing hard work. Lisbon is hot but tempered by the breeze off the Tagus; Porto rarely goes above 26°C because of the cool sea and the summer nortada wind, and morning sea fog is common along the north coast.

Wildfires are a summer risk in the interior forests and hills, mostly from July to September. They rarely affect city trips, but they can close roads and walking trails in central and northern Portugal; check the civil protection warnings if you plan to hike or drive through the hills in high summer.

Portugal’s sea is the Atlantic, not the Mediterranean, and it is colder than most visitors expect. Even in August the west coast stays cool because of upwelling, the rise of deep cold water along the shore in summer winds. The south coast of the Algarve, facing Africa, is the warmest part of the mainland, and the islands are warmer again.

September is the warmest month in the water almost everywhere, and the air is still 26-28°C in the south, which makes it the best beach month overall. The beaches near Lisbon, from Costa da Caparica to Cascais, are fine for swimming from July to September; north of Lisbon most people wear a wetsuit to surf at any time of year.

Rain in Portugal falls mostly from late October to March, and it falls hardest in the north-west. Porto gets around 1,200 mm a year, with 120-170 mm in each of the wettest months (November to February), roughly double Lisbon and about three times the Algarve. A winter week in Porto can bring five or six days of rain; a winter week in Faro might bring one.

That does not rule out Porto in winter. Daytime temperatures stay at 13-15°C, the port lodges in Vila Nova de Gaia and the city’s churches are all indoors, and hotel rates fall sharply. Pack a proper rain jacket and shoes with grip: the granite streets around Ribeira and the Luís I bridge get slippery. From May to September Porto is mostly dry and warm, and that is the window for the Douro Valley and the hiking in Peneda-Gerês National Park.

Lisbon’s rainy season is milder: about 700 mm a year, concentrated from November to February, with plenty of bright days in between. The Algarve gets about 450-500 mm, mainly in short winter downpours.

The table below shows Lisbon’s monthly averages for temperature and rain; follow each month for what to expect, what is open and what to pack. Porto runs 2-4°C cooler and much wetter in winter, the Algarve 1-2°C warmer with less rain, and the interior hotter in summer and colder in winter.

Madeira is the one part of Portugal with no bad season. Funchal on the sheltered south coast sees 19-20°C days in January and 25-26°C in August, and the sea never drops below about 18°C. The north coast and the high interior are wetter and cloudier, so the levada walks and the ridge hike from Pico do Areeiro to Pico Ruivo are best from April to October, when cloud and rain are least likely to close the paths. Winter is popular with northern Europeans escaping the cold, and the New Year’s Eve fireworks over Funchal bay fill the hotels months ahead.

The Azores are greener, cooler and much more changeable. Ponta Delgada on São Miguel runs 16-17°C in winter and 24-26°C in August, but you can get four seasons in a day, and fog often hides crater views such as Sete Cidades. May to September is the time to go: calmer seas for whale watching and inter-island ferries, hydrangeas in bloom along the roads from June to August, and the best chance of a clear summit on Mount Pico. Whale watching runs from about April to October, with blue and fin whales passing in spring (April-May) and sperm whales present all year. In winter, flights still run and the hot springs at Furnas are at their best, but ferries are limited and many boat tours stop.

• Surfing: Portugal has surf all year. Beginners do best from May to October, when swells are smaller and the water warmer, at Ericeira, Peniche, Costa da Caparica and the western Algarve. Experienced surfers come from October to March for the big Atlantic swells.
• Nazaré big waves: The giant waves at Praia do Norte in Nazaré break from about October to March, with the biggest days usually between November and February, when deep North Atlantic storms line up with the underwater canyon offshore. They only run on a handful of days each winter, so watch the forecasts and go the day before; the Forte de São Miguel Arcanjo lighthouse is the viewing point.
• Hiking: March to June and September to November on the mainland, for the Rota Vicentina coastal trail, Peneda-Gerês and the Serra da Estrela. Avoid inland trails in July and August heat. Madeira’s levadas are walkable all year, best April to October.
• Wine and the Douro: The grape harvest (vindima) runs from mid-September to early October, when quintas offer harvest experiences and the terraces turn gold. May, June and October are pleasant for river cruises without the summer heat in the valley.
• Skiing: Portugal’s only ski area is on the Serra da Estrela near Torre, with snow in January and February in a good year. It is a novelty trip rather than a ski holiday.
• Almond blossom and birdwatching: The Algarve’s almond trees flower from late January to February, and the Tagus and Sado estuaries near Lisbon and Setúbal host flamingos in winter.

June is Portugal’s festival month. The Santos Populares, the popular saints’ festivals, fill the old neighbourhoods with grilled sardines, paper decorations, cheap wine and street music for most of the month.

• Carnival (February or March): 17 February 2026 and 9 February 2027 are the main days. The best parades are in Torres Vedras, Ovar, Loulé and Funchal; Lisbon itself is quiet.
• Madeira Flower Festival (April-May): Floral carpets and a Sunday flower parade in Funchal, usually a few weeks after Easter.
• Fátima pilgrimages (12-13 May and 12-13 October): Hundreds of thousands gather at the Sanctuary of Fátima; rooms in the town are booked a year ahead.
• Senhor Santo Cristo dos Milagres (May): The Azores’ largest religious festival, in Ponta Delgada on the fifth Sunday after Easter.
• Festas de Lisboa and Santo António (all June, peak 12-13 June): The Marchas Populares parade down Avenida da Liberdade on the evening of 12 June, and Alfama, Mouraria and Bica throw street parties all night. 13 June is a Lisbon city holiday.
• São João in Porto (23-24 June): Porto’s biggest night: fireworks over the Douro at midnight, sardine grills, and crowds tapping each other on the head with plastic hammers. 24 June is a Porto holiday, and hotels sell out.
• Festa dos Tabuleiros, Tomar (every four years): Women in white carry towering trays of bread and paper flowers on their heads through Tomar. The festival last ran in July 2023 and is next due in summer 2027, usually in the first half of July; confirm dates with the Tomar municipality before booking.
• Summer music festivals (July-August): NOS Alive near Lisbon in early July, plus Meo Sudoeste and other beach festivals in the Alentejo and Algarve.
• Romaria da Senhora d’Agonia (August): Costumes, gold filigree and processions in Viana do Castelo around 20 August.
• Christmas and New Year: Christmas markets in Lisbon, Porto and Óbidos, and Madeira’s famous fireworks on 31 December.

National holidays that close offices and some museums include 25 April, 1 May, 10 June, 15 August, 5 October, 1 November, 1 December, 8 December and 25 December, plus Good Friday (3 April 2026, 26 March 2027) and Corpus Christi (4 June 2026, 27 May 2027). Festival dates shift from year to year, so check before you go.

High season runs from late June to early September on the coast and the islands, with the August peak the most expensive. In Lisbon and Porto, the crowds stretch from April to October, and city hotel rates now stay high through spring and autumn, so the bigger savings come from November to March.

Lisbon’s own month-by-month costs are covered in our Lisbon costs guide, and the classic routes for each season are in our Portugal itineraries.

• All year: comfortable shoes with grip for steep, polished cobbled streets in Lisbon, Porto and Sintra, and a light layer for the evenings, which turn cool even in summer on the coast.
• Summer: sun hat, high-factor sunscreen and a refillable bottle for the interior heat; a wetsuit or rental money if you plan to surf.
• Winter: a real rain jacket and an umbrella for Porto and the north, a warm jumper (many older houses and guesthouses have little heating), and layers for the Azores.
• Islands: walking boots and a waterproof shell for Madeira’s levadas and the Azores’ crater rims, where the weather can change in an hour.

Portugal travel guide · Beaches · Costs · Culture · Food · Getting Around · Itineraries · Visas