The weather in Portugal in September

As the summer months gradually bid farewell, September arrives in Portugal like a gentle transition, offering a delightful blend of warm sunshine, cooler breezes, and a hint of fall charm. Here is our guide to the weather in Portugal in September. 

The weather in Portugal in September at a glance

• The weather in September in Portugal typically offers pleasant weather with warm temperatures ranging from 68°F to 82°F (20°C to 28°C).
• While the weather is still favorable, the crowds tend to thin out compared to the peak summer months.
• Tourist hotspots might still see moderate crowds.
• September in Portugal marks the beginning of grape harvest season, offering opportunities for wine enthusiasts to participate in wine tours and tastings at vineyards across the country.

What is the weather like in Portugal in September?

If you're considering a trip to Portugal in September, you're in luck. This month marks the transition from summer to autumn, offering comfortable temperatures and pleasant weather conditions. Compared to the peak summer months, September brings slightly cooler temperatures, with warm and sunny days and mild evenings.

One of the other advantages of visiting Portugal in September is the decrease in rainfall. While there may be occasional showers, most days are characterized by sunshine and enjoyable weather. This means your trip can go on without worrying too much about the weather interfering with your plans.

September also falls within the shoulder season for tourism, meaning you'll encounter fewer crowds compared to the peak summer months. However, you can still expect a significant number of visitors, especially in coastal areas and popular tourist destinations.

Overall, September offers an appealing combination of favorable weather conditions and relatively fewer crowds, making it a great time to explore all that Portugal has to offer.

Average temperatures in September

In September, Portugal typically experiences warm and pleasant weather with decreasing temperatures, occasional rain showers, and a chance of late summer heat waves, particularly in the southern regions. This is a month of mild to warm temperatures, with daytime averages ranging from 68°F to 81°F (20°C to 27°C) and nighttime lows of 55°F to 70°F (13°C to 21°C). 

Porto and northern Portugal

In Porto and Northern Portugal, September offers mild and comfortable weather, with daytime temperatures ranging from approximately 68°F to 77°F (20°C to 25°C). Nighttime temperatures typically drop to around 55°F to 63°F (13°C to 17°C). Rainfall remains moderate, with an average of 1.97-2.76 inches (50-70mm) throughout the month, and the region's lush greenery begins to take on the hues of autumn.

Lisbon and central Portugal

Lisbon and central Portugal experience warm and sunny days in September, with daytime temperatures reaching from about 72°F to 81°F (22°C to 27°C). Evenings provide a slight chill, with temperatures ranging from 59°F to 66°F (15°C to 19°C). Rainfall remains moderate, with an average of 1.57-2.36 inches (40-60mm) over the month.

The Algarve and southern Portugal

In the southern region of Portugal, including the Algarve, September brings balmy temperatures and clear skies, with daytime averages ranging from approximately 75°F to 84°F (24°C to 29°C). Nighttime temperatures remain pleasant, typically between 63°F to 70°F (17°C to 21°C). Rainfall is minimal, with an average of 0.79-1.57 inches (20-40mm) for the month. The region's beaches are still warm and inviting for swimming and more. 

Madeira

September offers mild and sunny weather in Madeira, with daytime temperatures ranging from about 73°F to 81°F (23°C to 27°C). Nights are comfortably cool, with temperatures averaging between 64°F to 70°F (18°C to 21°C). Rainfall remains minimal, with an average of 0.39-0.79 inches (10-20mm) throughout the month.

Is September a good time to visit Portugal?

Yes, September in Portugal is in fact often regarded as one of the best times to visit. With the peak season ending, you’ll find that there are fewer crowds. At the same time, the weather is particularly mild and pleasant, with little rain. For many, this is preferred to the scorching heat of the summer months.

Beaches are still inviting, but less crowded, allowing for a more relaxing seaside experience. Additionally, September marks the beginning of the grape harvest season in wine regions like the Douro Valley, offering opportunities for wine tastings and vineyard tours.

With cooler temperatures and fewer crowds, September is the perfect time to rent a bike and pedal your way through charming villages, scenic coastal paths, and historic landmarks.

What about crowds and costs?

September in Portugal is a bit of a transition month. You'll find moderate to high tourist traffic as the country moves from the busy summer peak into the shoulder season. While it's not as jam-packed as July and August, you can still expect quite a few fellow travelers, especially at the hotspots like the Belém Tower and Jerónimos Monastery in Lisbon, or the Ribeira district and Dom Luís I Bridge in Porto.

Streets and attractions might be bustling, but it's generally more manageable compared to the height of summer.

Cost-wise, September tends to be easier on the wallet compared to the peak season. While prices for accommodation, transportation, and activities may still be higher than during the off-peak months of winter, they are generally lower than in July and August. Plus, you might stumble upon some promotions or discounts as businesses try to lure in visitors during this shoulder season.

If you’re seeking similar weather conditions but want to dodge the crowds, you might want to consider visiting Portugal in April or early May. You'll still get that glorious weather, but with fewer tourists jostling for space, and potentially a bit easier on your wallet too.

Ready to explore Portugal? Start preparing by finding out how to get there.

Festivals and events in September

As you prepare for your September trip to Portugal, be sure to check if any exciting festivities are happening during your visit. It's advisable to book your accommodations as early as possible. Additionally, if you're seeking further inspiration for your journey, explore our curated selection of the finest things to do in Portugal.

Porto Wine Fest

First up, wine lovers, get ready to raise your glasses at the Porto Wine Fest, an annual celebration of the city's famed port wine. Held along the scenic banks of the Douro River, this festival offers tastings of exquisite port wines, guided tours of historic wine cellars, and gastronomic experiences pairing wine with local delicacies. 

Madeira Wine Festival

In Funchal, the Madeira Wine Festival pays homage to the island's famous fortified wine with parades, live music, traditional folk dances, and abundant wine tastings. Against the backdrop of the city's picturesque streets, you can immerse yourself in Madeira's cultural heritage and the art of winemaking that has flourished on the island for centuries.

Feiras Novas

Step back in time at Feiras Novas in Ponte de Lima, one of Portugal's oldest and most traditional festivals. Dating back over 600 years, this event is a colorful celebration featuring processions, folk music, dance performances, bullfights, and a bustling marketplace offering local crafts and delicacies. It's a chance to experience the vibrant community spirit and rich cultural heritage of the Minho region.

Caramulo Motorfestival

For thrill-seekers and car enthusiasts like yourself, the Caramulo Motorfestival promises an exhilarating experience. Set against the stunning backdrop of the Caramulo mountain range, this festival showcases vintage cars, classic motorcycles, and high-performance vehicles through thrilling races, car displays, and exhibitions. 

Nossa Senhora do Ó

Join in the religious observance of Nossa Senhora do Ó, celebrated in various towns and villages across Portugal. Honoring the Virgin Mary under her title of "Our Lady of the O," this solemn occasion includes processions, Masses, and prayers, as well as cultural events and traditional festivities that foster community and reverence.

Nossa Senhora da Nazare Romaria

In Nazaré, the Nossa Senhora da Nazare Romaria beckons pilgrims from near and far to pay homage to Nossa Senhora da Nazaré. Engage in Masses, processions, and rituals that reflect the town's maritime traditions and deep devotion to the Virgin Mary. It's a deeply spiritual journey that resonates with the enduring faith of the Portuguese people.

The Festival Internacional De Marionetas Do Porto

The Festival Internacional De Marionetas Do Porto brings the enchanting art of puppetry to the streets and theaters of Porto. Puppeteers from around the world gather to showcase their talents, entertaining audiences of all ages with captivating performances and imaginative storytelling. From traditional hand puppets to innovative puppetry techniques, it's a celebration of creativity and the timeless appeal of puppet theater.

Rough Guides tip: Find even more ideas for your fall adventure with our guide to the best places to travel in September.

Plan your trip with our Portugal itineraries

Our Portugal itineraries are crafted to help you experience the best of the country, stress-free. Think of them as a starting point — perfect for planning, but flexible enough to adjust to your own pace and interests. After all, travel is about freedom, but a little planning goes a long way.

• Portugal itinerary 5 days: A quick trip focused on Portugal’s essentials. Expect to explore Lisbon’s vibrant streets, visit historic castles, and maybe squeeze in a coastal day trip.
• Portugal itinerary 7 days: A week in Portugal gives you time to experience Lisbon, Porto, and some wine country. You’ll get a nice mix of city sights, history, and stunning landscapes.
• Portugal itinerary 10 days: With ten days, you can enjoy Portugal’s cities, coastlines, and countryside at a relaxed pace. Expect to see Lisbon, Porto, the Algarve beaches, and charming medieval towns along the way.

Visit Portugal in other months

Not sure when to go to Portugal? See our guide to other months:

• January: Begin your year in Portugal with its mild weather and fewer tourists, offering an ideal opportunity to explore cities and immerse yourself in culture without the usual crowds.
• February: Enjoy the serene atmosphere of Portugal with cool, quiet days perfect for leisurely strolls through charming streets with minimal foot traffic.
• March: Experience the pleasant temperatures and moderate crowds, especially along the coastline, where you can revel in emerging blooms and refreshing coastal breezes.
• April: Dive into Portugal's rich history and vibrant culture amidst manageable crowds and delightful weather as temperatures gradually rise.
• May: Embrace the vibrant ambiance of Portugal with warm weather and lively crowds, particularly during festivals and outdoor events.
• June: Kick off summer in Portugal with hot weather and bustling crowds at beaches and historic landmarks, providing the perfect setting for sun-soaked adventures.
• July: Soak up the energetic vibe as Portugal's temperatures soar and tourists flock to sandy shores and popular attractions.
• August: Experience the lively atmosphere of Portugal's beaches and tourist hotspots as summer reaches its peak, despite occasional crowding.
• October: Explore Portugal's natural wonders and cultural treasures at a relaxed pace with mild temperatures and fewer tourists.
• November: Cozy up in cafes or take scenic drives through Portugal's countryside as fall brings cooler temperatures and a quieter ambiance.
• December: Feel the festive spirit in Portugal's cool weather and bustling streets, adding charm to its cities and towns during the holiday season.