Portugal in March — Shoulder Season, Wildflowers, and Whale Watching

March sits at the junction between Portugal’s low and high seasons. Prices are still well below peak, crowds are thin compared to summer, and the natural landscape is at its most photogenic — green hills, wildflowers across the Alentejo plains, and the Azores at the heart of whale migration season.

Weather in March

Lisbon warms to 13–19°C with around 9 rainy days. Sunny days are genuinely pleasant — warm enough for outdoor dining without a coat by midday. Porto remains cooler at 10–16°C with more frequent rain. The Algarve is comfortable at 14–20°C and increasingly dry as the month progresses.

The Alentejo interior, often overlooked, is spectacular in March: green after winter rains, with wildflowers covering the rolling plains, and temperatures ranging from 12°C to 20°C. It is drier than the coast in spring.

Madeira settles into its mid-range at 17–21°C. The Azores are still wet and breezy, but conditions for whale watching are excellent — the season is in full swing.

Whale Watching in the Azores

March through June is peak season for cetacean diversity in the Azores. From the islands of Faial and Pico, you can expect:

• Sperm whales — present year-round, the resident species of the Azores
• Blue whales — passing through on migration, peak February–April
• Fin whales — migration peak March–May
• Common dolphins, striped dolphins, bottlenose dolphins — year-round

Tours typically run 3–4 hours and cost €55–80 per adult. Most operators use rigid inflatable boats that allow close approach when conditions are safe. Reputable companies include Espaço Talassa (Pico), Futurismo (São Miguel), and Natur (Faial). All offer guarantees — if no whales are spotted, you get a free rebook. Book in advance for March departures; cancellations due to swell are common, and operators fill quickly on good-weather days.

Flights to the Azores from Lisbon (TAP, SATA) take around 2 hours and cost €60–150 return depending on season.

Wildflowers in the Alentejo

The Alentejo plains in March are covered in poppies, lupins, asphodels, and wild lavender. This is particularly true in the Costa Vicentina — the western Alentejo coastline bordering the Parque Natural do Sudoeste Alentejano e Costa Vicentina, one of the largest protected coastal areas in Europe.

Key areas for wildflowers:

• Comporta and the rice flats north of the Alentejo coast
• Zambujeira do Mar and the cliffs south toward Odeceixe
• Évora surroundings — the plains around the Alentejo capital burst into colour
• Serra de São Mamede — higher ground with orchids and iris species

Walking trails in the Rota Vicentina are at their best in March: cool enough for long days on foot, and the landscape is green rather than the dry brown of summer.

Semana Santa (Holy Week)

If Easter falls in late March (it varies year to year), Semana Santa brings significant religious processions to several Portuguese cities. Braga hosts the country’s most elaborate Holy Week, with candlelit processions at Bom Jesus do Monte on Good Friday drawing thousands. Óbidos runs a medieval-themed Easter market in the walled town. Évora and Porto also hold traditional processions.

Accommodation prices rise during Easter week, particularly in Braga and Óbidos. Book ahead or travel the week before.

What to Do in Portugal in March

Sintra

The palaces and parks of Sintra are at their best in March — the gardens of Quinta da Regaleira and Monserrate Palace are in bloom, and queues for the Pena Palace are a fraction of summer levels. Arrive before 10:00 to beat the day-trip coaches from Lisbon.

Douro Valley

The Douro Valley is coming alive in March. Almond blossom has given way to the first green buds on the vines. Quinta visits are intimate and unhurried. The Linha do Douro train from Porto to Pocinho is one of Europe’s most scenic rail routes — the journey costs around €12 each way and takes 3 hours to Pinhão.

Surfing

March is consistent along the west coast. Ericeira (a World Surfing Reserve) and Peniche have reliable Atlantic swells of 1.5–3 metres. Water is cold (15°C), requiring a 4/3mm wetsuit. Surf camp packages in Ericeira start around €350/week including accommodation, instruction, and equipment.

Prices in March

Accommodation is 15–25% below summer peak. Flights begin to rise, particularly around Easter. For the best value, travel in the first two weeks of March — before Easter uncertainty pushes prices up and before the shoulder season fully kicks in.