Portugal in May: Your Guide to Weather, Activities, and Festivals

May is one of the best times to visit Portugal. Why? Well, you’ll get warm but not overpowering weather, lots of exciting cultural events and festivals, and fewer crowds than the peak summer months. With the transition from spring to early summer, Portugal in May provides an ideal setting for outdoor adventures, sightseeing, and relaxation.

One of the biggest advantages of visiting in May is the balance between pleasant weather and a more relaxed atmosphere. The high season hasn’t fully arrived, meaning you can explore Portugal’s historic sites, stunning coastlines, and charming towns without the long queues and packed attractions that come with summer tourism. Festivals and local celebrations also begin to pick up, offering visitors a chance to experience Portuguese culture and tradition at its best.

Weather in Portugal in May: What to Expect

May in Portugal welcomes travellers with mild, sunny days and comfortable evenings. Temperatures typically range between 15°C (59°F) and 25°C (77°F), depending on the region. While the early mornings and nights can be cooler, daytime conditions are usually warm enough for beach visits and outdoor activities. The country experiences minimal rainfall during this month, with an average of 20-50mm of precipitation.

Here’s a quick breakdown of what to expect in different regions:

In Northern Portugal, including Porto and the Douro Valley, temperatures are slightly lower, averaging between 12°C (54°F) and 22°C (72°F), with occasional rain showers.
Central Portugal, including Lisbon and Coimbra, experiences mild conditions, with temperatures fluctuating between 14°C (57°F) and 24°C (75°F) and plenty of sunshine.
The Algarve in the south is warmer and drier, with temperatures reaching up to 26°C (79°F), making it a great destination for early summer beachgoers.
Meanwhile, the islands of Madeira and the Azores enjoy mild, subtropical weather, with temperatures averaging 18°C (64°F) to 24°C (75°F), offering perfect conditions for hiking and coastal exploration.

Best Destinations to Visit in May

Lisbon is a must-visit city in May, with its blend of historic charm, scenic viewpoints, and lively outdoor cafés. The streets of Alfama and Bairro Alto are perfect for wandering, and landmarks like the Belém Tower and Jerónimos Monastery are less crowded than in the summer months. May is also a great time to take a tram ride through the city or enjoy a traditional fado performance in an intimate setting. Lisbon is also well connected to nearby gems like Cascais, Setúbal, and Arrábida Natural Park

Learn all about visiting the capital with our comprehensive Lisbon sightseeing guide.

Porto, in the north, is ideal for those who love history and fine wine. The Ribeira district and the iconic Dom Luís I Bridge offer stunning views of the Douro River, while wine enthusiasts can enjoy tastings in the city’s renowned port cellars. The milder climate makes exploring Porto’s charming streets and riverside promenade especially enjoyable in May.

For travellers interested in history and culture, Coimbra is a fantastic choice. Home to one of the world’s oldest universities, its historic centre is a fascinating place to explore. May is also the month of Queima das Fitas, an annual student festival featuring parades and concerts, adding to the city’s vibrant atmosphere. More on this later.

If you’re looking for nature and coastal beauty, the Algarve is the perfect place to relax on golden beaches, go golfing, or explore scenic coastal trails like the Seven Hanging Valleys Trail. May is warm but not too hot, making it ideal for outdoor activities.

The Azores, known for their dramatic landscapes and whale-watching opportunities, are also at their best in May. The lush green scenery and volcanic craters provide breathtaking backdrops for nature lovers.

For an inland escape, Alentejo offers a slower-paced experience, where rolling vineyards and medieval villages showcase Portugal’s authentic rural charm. The region’s rugged southwest coastline is also perfect for those looking to avoid tourist-heavy spots.

Outdoor Activities and Festivals

Portugal in May is perfect for outdoor enthusiasts. Hiking trails like the Serra da Estrela in the north and the Rota Vicentina in the southwest offer fantastic opportunities for exploring the countryside. Surfing conditions are excellent along the west coast, particularly in “Supertubos”, Peniche, where experienced surfers can take on world-class waves. Golfers will also find May ideal for a round at one of the Algarve’s famous golf courses. Check out our Portugal Golf Holidays Guide for more information.

Cultural events and festivals add another layer of excitement to a May visit. As previously mentioned, Queima das Fitas (23-31 May) in Coimbra is a lively student celebration marking the end of the academic year, featuring colourful parades and concerts. Imaginarius Festival (22-25 May) in Santa Maria da Feira is one of Portugal’s most important street theatre festivals, bringing performances and artistic displays to the streets. Meanwhile, the Feira de Maio de Azambuja (22-26 May) is a traditional fair celebrating Portuguese equestrian culture, offering visitors a glimpse into the country’s rural traditions and folklore.

Travel Tips for Visiting Portugal in May

Packing for Portugal in May is relatively straightforward. Light, breathable clothing is perfect for daytime, while a light jacket or sweater is useful for cooler evenings. If you plan on visiting northern Portugal or the Azores, packing a compact umbrella or waterproof jacket is advisable in case of occasional showers.

While May isn’t peak tourist season, booking accommodation and key activities in advance is still a good idea, especially in popular areas like Lisbon, Porto, and the Algarve. Planning ahead ensures you get the best rates and availability at top-rated stays, such as luxury villas and boutique accommodations.

Exploring both coastal and inland areas provides a well-rounded experience of Portugal. While Lisbon and Porto offer dynamic city breaks, the Alentejo and Douro Valley offer a more relaxed, countryside experience with excellent local food and wine. Participating in local festivals and sampling seasonal cuisine, such as fresh seafood and springtime produce, will make your trip even more memorable.

Experience Portugal This May!

Portugal in May offers everything a traveller could wish for – pleasant weather, fewer crowds, exciting festivals, and breathtaking scenery. Whether you’re drawn to the historic streets of Lisbon, the vineyards of Porto, the unspoiled nature of the Azores, or the sandy beaches of the Algarve, May provides an ideal balance of warmth and comfort.

Now you know exactly what’s on offer in Portugal in May, all that’s left is to book flights and get your accommodation sorted. While we can’t help with the transport, we can definitely make your accommodation search easy! Allure Villas provides luxury holiday rentals, offering the perfect blend of comfort, style, and authentic Portuguese charm. You’ll find the perfect home away from home for your trip to Portugal in May!