tram 28 in lisbon during a thunderstorm

Portugal Lisbon Weather: A Comprehensive Guide 

Lisbon, the sun-kissed capital of Portugal, enjoys a Mediterranean climate with distinct seasons that offer a diverse experience to its visitors. Whether you’re planning to explore the historic streets, indulge in the rich culinary scene, or simply soak up the sun by the Tagus River, understanding Lisbon’s weather patterns is key to making the most of your trip. This guide provides a detailed overview of Lisbon’s weather from January to December, helping you plan your visit accordingly.

Current Weather In Lisbon Portugal

Average Monthly Weather In Lisbon Portugal

Monthly Temp Lisbon Portugal Chart
data from NOAA
Monthly Temp Lisbon Portugal Fahrenheit

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Average Rainfall Lisbon Portugal

Despite London and the UK’s reputation for frequent rain, Lisbon receives a more substantial amount of rain per year, around 675mm, compared to Greenwich Park’s 562.86mm. This fact becomes even more fascinating when considering the distribution of rain throughout the year in Lisbon.

The city experiences a significant portion of its rainfall during the autumn and winter months, with November and December being particularly wet, showcasing a stark contrast to the drier, sunnier days prevalent in the summer. This seasonal variation in rainfall not only challenges the stereotypical view of weather in these renowned cities but also highlights Lisbon’s unique climatic patterns.

January: The Coldest Month

Portugal Lisbon Weather January – January is the coldest month in Lisbon, with average temperatures slightly lower than December. However, “cold” in Lisbon still means relatively mild weather, especially compared to northern Europe, with average highs around 14.8°C (58.6°F). Rainfall remains high, contributing to the city’s lush winter landscape.

  • Activities: Visit museums and historical sites, enjoy traditional Portuguese meals in cozy restaurants, and take advantage of the sales in Lisbon’s shopping districts.
  • Tips: Warm clothing and comfortable, waterproof shoes are essential for January’s unpredictable weather.

It’s a quiet time in the city, perfect for visiting museums without the crowds or enjoying traditional Portuguese meals in cozy settings. During December and January you might see some rain, but there’s a bonus: fewer tourists around. This means you can hop on the famous Tram 28 much quicker, without long lines. For those of us living here from other places, we really love this time of year. It’s when Lisbon feels most like its true self, showing off the city’s local life and charm.

February: The Hint of Spring

Portugal Lisbon Weather February – February sees the first hints of spring, with slightly warmer temperatures and a decrease in rainfall compared to the previous months. The average high temperature begins to climb, reaching around 16.2°C (61.2°F). This month can still be wet, but with fewer rainy days, allowing for more time to explore the city’s outdoor attractions including celebrating Carnival, a vibrant showcase of Portuguese culture and festivity.

  • Activities: Celebrate Carnival with colorful parades and parties, explore Lisbon’s outdoor markets, and take walks along the Tagus River.
  • Tips: Layering remains key, as temperatures can vary throughout the day. An umbrella is still a good idea for occasional showers.

March: Spring Arrives

Portugal Lisbon Weather March – March officially welcomes spring in Lisbon, with a noticeable increase in temperatures and a significant reduction in rainfall. The average high temperature rises to a pleasant 18.8°C (65.8°F), and the city begins to bloom, both literally and figuratively, as outdoor events and activities start to pick up again.

  • Activities: Visit the Belém district to see the cherry blossoms, enjoy outdoor dining in Lisbon’s many terraces, and take day trips to nearby Sintra or Cascais as the weather warms.
  • Tips: A light jacket and comfortable walking shoes are perfect for March, as you’ll likely spend more time outdoors enjoying the milder weather.

April: The Heart of Spring

Portugal Lisbon Weather April – April in Lisbon is truly the heart of spring, with the city coming alive with color from blooming flowers and trees. The average high temperature is around 19.8°C (67.6°F), and while there’s still a chance of rain, the weather becomes increasingly pleasant, with more sunny days. This month is perfect for those who enjoy mild temperatures and the beauty of spring without the crowds of peak tourist season.

  • Activities: Easter celebrations bring unique traditions and processions, making it a special time to visit. It’s also ideal for exploring Lisbon’s parks and gardens, such as the Estufa Fria and Jardim Botânico da Ajuda, which are in full bloom.
  • Tips: Pack a mix of clothing, including a waterproof layer for occasional showers and lighter attire for sunny days. Don’t forget comfortable shoes for walking through Lisbon’s hilly streets.

May: The Prelude to Summer

Portugal Lisbon Weather May – May sees Lisbon warming up as it approaches summer, with average high temperatures reaching 22.1°C (71.8°F). Rainfall continues to decrease, leading to dry, sunny days perfect for outdoor activities and exploring the city’s many attractions. The evenings remain cool, offering a comfortable climate for enjoying Lisbon’s nightlife.

  • Activities: This is an excellent time for day trips to nearby beaches or the fairy-tale town of Sintra. Cultural festivals and events start to pick up, including the IndieLisboa International Independent Film Festival.

Tips: Sun protection becomes more important, so bring sunglasses, a hat, and sunscreen. Layers are still advisable for cooler evenings.

June: Welcoming Early Summer

Portugal Lisbon Weather June – June welcomes the early summer with open arms, characterized by longer days and an average high temperature of 25.7°C (78.3°F). It’s one of the driest months, allowing everyone to fully enjoy the outdoor Lisbon lifestyle. The city vibrates with energy as streets fill with festivals and celebrations, including the popular Festas de Lisboa, which pays homage to Saint Anthony with parades, music, and sardine feasts.

  • Activities: Take advantage of the warm weather to explore Lisbon’s outdoor markets, rooftop bars, and open-air concerts. Beach trips become a must, with the nearby Cascais and Estoril coastlines offering golden sands and inviting waters.
  • Tips: Light and airy clothing will keep you comfortable during the day, but always have a light sweater for the cooler Atlantic breezes at night. June is also a great time to enjoy Lisbon’s outdoor dining scene, so make reservations at terraces and patios to experience the city’s culinary delights under the stars.

July: The Peak of Summer

Portugal Lisbon Weather July – July in Lisbon is the epitome of summer, with long, sun-drenched days and minimal rainfall. The city basks in an average high temperature of around 28.2°C (82.8°F), making it the perfect time for beach outings and coastal explorations. Despite the heat, the proximity to the Atlantic Ocean provides a refreshing breeze, making outdoor activities enjoyable. Nighttime brings a comfortable coolness, ideal for enjoying Lisbon’s vibrant nightlife.

  • Activities: Beach visits, surfing, and evening strolls along the Tagus River.
  • Tips: Stay hydrated and apply sunscreen regularly to protect against the high UV index.

August: The Warmest Month

Portugal Lisbon Weather August – August continues the trend of high temperatures, rivaling July for the warmest month. The average high slightly edges up to 28.3°C (82.9°F), with the sea temperature being the warmest, perfect for swimming and water sports. Rainfall remains scarce, ensuring clear skies for the majority of the month.

  • Activities: Attend outdoor festivals, dine al fresco, and explore Lisbon’s historical sites in the cooler evenings.
  • Tips: Book accommodations with air conditioning and plan indoor activities during the hottest part of the day.

September: Beginning of Autumn

Portugal Lisbon Weather September – September marks the start of autumn in Lisbon, bringing a subtle shift in the weather. The average high temperature begins to decrease to a pleasant 26.5°C (79.7°F), making it one of the best months to visit for those who prefer milder weather. The decrease in tourist crowds and the continuation of warm sea temperatures make September ideal for exploring both the city and its beaches.

  • Activities: Wine tasting tours, visiting the Sintra-Cascais Natural Park, and enjoying the less crowded beaches.
  • Tips: Pack a mix of summer and light autumn clothing to adapt to the changing temperatures.

October: The Autumnal Charm

Portugal Lisbon Weather October – In October, Lisbon fully embraces autumn, with temperatures further cooling to an average high of 22.5°C (72.5°F). Rainfall increases, bringing a refreshing change to the landscape and reviving the lush greenery of the city’s parks and gardens. This month offers a beautiful blend of sunny days and occasional rainy spells, perfect for experiencing the cultural and culinary delights of Lisbon.

  • Activities: Explore Lisbon’s museums and art galleries, enjoy the vibrant café culture, and attend jazz festivals.
  • Tips: Carry an umbrella and layer your clothing to accommodate for rain showers and cooler evenings.

November: The Rainy Season Begins

Portugal Lisbon Weather November – November sees a noticeable shift towards cooler and wetter weather, with an average high temperature dropping to 18.2°C (64.8°F). It is the second rainiest month of the year, making it a good time to indulge in indoor activities. Despite the rain, Lisbon’s charm is undeniable, with fewer tourists and a more relaxed atmosphere.

  • Activities: Attend film festivals, participate in culinary workshops, and explore indoor markets.
  • Tips: Waterproof footwear and a warm jacket are essential for staying comfortable during rainy days.
Praca Do Commercio Lisbon Winter
Praca do Comercio with almost no Tourists in December

December: Welcoming Winter

Portugal Lisbon Weather December – December in Lisbon is marked by the onset of winter, with temperatures ranging from a low of 9.4°C (48.9°F) to a high of 15.3°C (59.5°F). Rainfall is significant, making it one of the wettest months of the year, but Lisbon’s festive decorations and warm Portuguese hospitality shine through the grey skies. Lets not forget that there are very few tourists around and you get to experience Lisbon like a local

  • Activities: Explore Christmas markets, enjoy festive concerts, and experience New Year’s Eve celebrations along the river.
  • Tips: Pack a waterproof jacket and warm layers to stay comfortable while exploring the city’s festive lights and decorations.

Average Monthly Sea Temperature Lisbon Portugal

Monthly Sea Temp Lisbon Portugal
This data was collected from the Portuguese Institute of Sea and Air (IPMA)

For those drawn to the allure of the Atlantic Ocean, understanding the sea temperatures in Lisbon can greatly enhance your visit, whether you’re planning to swim, surf, or simply enjoy the coastal beauty. Below is a month-by-month breakdown of the average minimum and maximum sea temperatures, ensuring you’re well-prepared for your aquatic adventures.

  • January: With sea temperatures ranging from 14.6°C to 16.9°C, January offers a brisk oceanic experience, ideal for the hardy soul or those interested in coastal walks rather than swimming.
  • February: The sea remains cool in February, with temperatures between 14.0°C and 16.5°C. Water activities are generally limited to those who don’t mind the chill.
  • March: As spring approaches, the sea temperature slightly increases, ranging from 13.6°C to 16.5°C, still cool but starting to hint at the warmer months ahead.
  • April: The ocean begins to warm up, with temperatures between 14.5°C and 17.9°C. It’s a time when the first brave swimmers might start to venture into the waters.
  • May: Marking the true start of warmer sea temperatures, May sees a range from 15.3°C to 19.4°C, making it more inviting for swimming and water sports.
  • June: Sea temperatures further increase to between 17.2°C and 20.1°C, perfect for enjoying a variety of water activities under the sun.
  • July: The sea becomes pleasantly warm, with temperatures ranging from 16.7°C to 21.2°C, ideal for swimming, surfing, and sunbathing along Lisbon’s beautiful beaches.
  • August: Offering the warmest sea temperatures of the year, between 17.0°C and 22.3°C, August is the prime month for beachgoers to enjoy the water at its most inviting.
  • September: As autumn approaches, the sea remains warm with temperatures between 18.5°C and 21.4°C, extending the summer vibe for water enthusiasts.
  • October: The sea starts to cool down, with temperatures ranging from 18.7°C to 21.0°C, still warm enough for those looking to catch the last waves of the season.
  • November: With a range from 16.8°C to 19.5°C, the sea begins to cool significantly, marking the end of the swimming season for most.
  • December: Sea temperatures drop to between 15.6°C and 17.4°C, welcoming the winter months with cooler waters, more suited to reflective beach walks than swimming.

Average UV Index Lisbon Portugal

Understanding the UV index during your visit to Lisbon is crucial for planning outdoor activities and ensuring your skin is protected against the sun’s harmful rays. Here’s a brief overview of what to expect throughout the year:

Average UV index Lisbon Portugal
  • January and December: With an average UV index of 2, these months experience the lowest intensity of UV radiation. It’s generally safe to be outdoors, but sunscreen is still recommended on brighter days.
  • February and November: The UV index slightly increases to 3. While the risk of harm from unprotected sun exposure is low, wearing sunscreen on sunny days is advisable, especially around midday.
  • March and October: The UV index rises to 5 and 4, respectively, indicating a moderate risk of harm from unprotected sun exposure. It’s wise to start incorporating sun protection measures, such as sunscreen, hats, and sunglasses, into your daily routine.
  • April and September: With UV indexes of 6 and 6, respectively, there’s an increased need for sun protection. Seek shade during midday hours, wear protective clothing, and apply broad-spectrum sunscreen regularly.
  • May and August: The UV index reaches 8 in May and decreases slightly to 8 in August, signaling very high risk. Extended sun exposure should be avoided, especially between 10 a.m. and 4 p.m. Reapply sunscreen every two hours and after swimming or sweating.
  • June and July: These months see the highest UV index of 9, indicating an extremely high risk of harm from unprotected sun exposure. It’s crucial to minimize sun exposure during midday, wear UPF-rated clothing, and use broad-spectrum sunscreen with a high SPF rating.

By staying informed about the UV index and taking appropriate precautions, you can enjoy Lisbon’s beautiful outdoors safely, regardless of the month you choose to visit.

Best Time To Visit Lisbon

Spring (March to May): Lisbon in spring is just beautiful. After the cool winter, it gets warmer – about 18°C to 22°C (65°F to 72°F), which is really comfortable. It’s a great time to come if you don’t like crowds. The city looks amazing with all the flowers blooming, and there are lots of fun things to do outside, like visiting old parts of the city or chilling on terraces. There’s also this cool film festival in April called IndieLisboa.

Early Summer (June): In June, summer starts, and Lisbon gets really lively. There’s this big party called Festas de Lisboa with music, parades, and lots of sardines to eat. It celebrates Saint Anthony, the city’s special saint. The weather’s great for being outdoors, with temperatures around 25.7°C (78.3°F), perfect for hitting the beach or dining out late.

Autumn (September to November): Autumn is a fantastic time to visit. September still feels like summer with warm days, but the city gets quieter. The weather gets cooler in October and November, but it’s still nice enough to explore outside. Plus, the colors of the leaves make the city look extra beautiful.

Winter (December to February): Winter is cooler and can be rainy, but it’s a great time to see Lisbon without many tourists. You get to experience the local side and enjoy all the Christmas lights and decorations.

What You Should Know:

  • Busy vs. Quiet Times: July and August are super sunny and nice, but also the busiest. If you want good weather but fewer people, try late spring (May and June) or early autumn (September).
  • Festivals and Events: There’s always something happening in Lisbon. For example, in April, there’s the Lisbon Fish & Flavours Festival, which is all about food. And in June, the Santo António Festival is a big deal with lots of traditional stuff going on.
  • Tips for Enjoying the Weather: Lisbon can get hot, so do your sightseeing in the morning or late afternoon to avoid the midday sun, especially in the summer months. Walking by the Tagus River in the evening is great because it’s cooler and the sunsets are amazing.

So, When’s the Best Time to Come? Ultimately, the question of when to visit Lisbon transforms from seeking the “best” time to discovering the right time for you. It’s about aligning your travel plans with your personal interests, Really, it depends on what you like. For good weather and fewer people, try spring or early summer. Autumn is beautiful and a bit quieter, and winter lets you see the city’s true charm with fewer tourists around. Whatever you choose, Lisbon has something special to offer all year round.

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