Overview

São Martinho do Porto is one of Portugal’s most iconic coastal towns, shaped by its perfectly curved bay, calm waters and a gentle seaside atmosphere that feels both familiar and quietly elegant. The shell‑shaped lagoon creates a natural refuge from the Atlantic, giving the town a unique identity and making it ideal for families, walkers and anyone seeking a peaceful coastal rhythm. Along the promenade, cafés, restaurants and small shops reflect the relaxed charm of the Silver Coast. The surrounding cliffs and dunes add natural beauty, while the town’s simplicity and brightness make it a place where days unfold slowly and pleasantly.

Best time to visit

The best time to visit São Martinho do Porto is from May to September, when warm temperatures and long days create ideal conditions for swimming, sunbathing and enjoying the bay. Summer brings lively streets and a vibrant holiday atmosphere. Spring and early autumn offer mild weather, fewer visitors and beautiful light for coastal walks. Winter is quiet and reflective, with calm scenery and soft Atlantic tones that highlight the bay’s natural elegance.

Getting around

São Martinho do Porto is compact and easy to explore on foot. The promenade connects the entire bay, making movement simple and scenic. Walking between the town centre, the beach and the viewpoints is comfortable and pleasant. For reaching nearby destinations such as Salir do Porto, Nazaré or Alcobaça, a car provides flexibility, though buses also serve the region. Movement feels relaxed, shaped by sea views and the gentle pace of coastal life.

Safety and local etiquette

The town is safe and welcoming, with a friendly atmosphere typical of small Portuguese seaside communities. Normal precautions apply, especially during busy summer days. Respect for nature, quiet behaviour near residential areas and politeness toward locals are appreciated. The environment encourages slow exploration and calm interaction, reflecting the region’s tranquil character.

Food and water

Dining in São Martinho do Porto highlights coastal flavours: fresh fish, seafood, grilled dishes and traditional Portuguese comfort food. Restaurants along the bay offer scenic views and relaxed meals. Tap water is safe to drink. Food experiences feel warm, simple and connected to the Atlantic.

Day trips and excursions

São Martinho do Porto is perfectly positioned for exploring the Silver Coast. Salir do Porto lies just across the wooden walkway, offering dunes and quiet beaches. Nazaré provides dramatic cliffs and a lively seaside atmosphere. Alcobaça reveals a monumental monastery and historical depth. Foz do Arelho and the Óbidos Lagoon offer scenic landscapes and outdoor activities. Each excursion complements São Martinho’s blend of calm, nature and coastal charm.

Essence of São Martinho do Porto

The essence of São Martinho do Porto lies in its harmony between sea, simplicity and gentle beauty. The bay curves softly toward the horizon, waves move calmly along the shore and the town preserves a peaceful rhythm shaped by both nature and tradition. It is a place where travellers slow down, enjoy quiet moments and feel the serene spirit of Portugal’s Silver Coast. São Martinho do Porto embodies the bright, tranquil and quietly captivating soul of the Atlantic.

Highlights in São Martinho do Porto:

The beach is the center of everything, going up to Facho provides great views, walking through the mountains to Foz do Arelho is a temptation, and, for those who don’t know, Alcobaça and Nazaré are minutes away in the opposite direction.

São Martinho do Porto is famous for its spectacular shell-shaped bay, considered one of the most beautiful natural bays in Portugal.
The town is located in the municipality of Alcobaça, on the Silver Coast of Central Portugal.
Tap water is safe to drink and of excellent quality.
The calm waters inside the bay make it one of Portugal’s most popular beach destinations for families.
The narrow channel connecting the bay to the Atlantic Ocean is one of the town’s most distinctive geographical features.
The scenic walkway linking São Martinho do Porto to Salir do Porto offers some of the finest coastal views in the region.
The nearby dune of Salir do Porto is one of the largest coastal dunes in Portugal.
The town offers excellent opportunities for swimming, sailing, kayaking, paddleboarding, and coastal walking.
Fresh seafood, grilled fish, shellfish, and traditional Portuguese cuisine are among the local gastronomic highlights.
São Martinho do Porto is conveniently located near Nazaré, Alcobaça, Óbidos, Foz do Arelho, and Peniche.
The destination is safe and visitor-friendly; normal precautions are generally sufficient.
Credit and debit cards are widely accepted throughout the town.
The official currency is the Euro (€).
The railway station provides convenient connections to Lisbon, Caldas da Rainha, and other destinations along the Oeste Line.
Respect beaches, dunes, coastal cliffs, marine environments, and local communities when visiting.

São Martinho do Porto enjoys a Mediterranean climate with strong Atlantic influences, offering mild temperatures throughout the year and making it one of Portugal’s most pleasant seaside destinations.

Spring (March to May) — mild temperatures, blooming landscapes, and excellent conditions for walking, cycling, and exploring the bay and surrounding coastline.
Summer (June to August) — warm and generally sunny, with temperatures typically ranging between 22°C and 30°C. The sheltered bay provides calmer conditions than many other Atlantic beaches.
Autumn (September to November) — pleasant weather, relatively warm sea temperatures, and ideal conditions for sightseeing, photography, and coastal walks.
Winter (December to February) — mild conditions, generally ranging between 7°C and 16°C, with occasional rainfall and impressive Atlantic scenery.

The sheltered shape of the bay creates a unique microclimate, helping to make São Martinho do Porto one of Portugal’s most family-friendly beach destinations.

Today:

🌐 Regional connection

This destination is part of the South Central Coast Cluster, a curated region that connects coastal towns, heritage sites and Atlantic landscapes across central Portugal.

Notes from our visits
Your own experience

São Martinho do Porto beach

With a shell shaped bay, São Martinho do Porto is the most known beach of Alcobaça.

The beach

It is absolutely safe, what makes it a children’s paradise.

Opposite to it’s neighbor and “rival” Nazaré , which in summer is invaded by thousands of popular people, São Martinho do Porto attracts some rather aristocratic dwellers, but in summer, like most of the other beaches around, it’s always time of crowds and animation.

Old Days

In the beginning of last century, this beach was an exclusive destination for the rich families in the centre of Portugal.

Several mansions were built by the sea, but the mass tourism started to replace them by bigger block to popular purses.

Not much remains from those old days, but the few images still add some beauty to the beach front line.

The church

The main church comes from the 18th century, and the most noticeable detail is a large painting behind the altar, portraying the saint who gave name to town – Martinho.

Market – Common but special

It’s a common market, selling common fresh articles, but for me it has something special for being one of my brother’s first projects.

The prices seem to be good, so, if you go there don’t limit yourself to the apples and carrots and have a look at the building.

The wild side

Facho, a mountain by the mouth of the bay, provides spectacular views over the whole site.

One thing makes us sorry:

Houses climbing the hill, and spreading wherever it becomes possible.

Landscape deserves a better protection, and, I remember, about 60 years ago a big part of the mount collapsed in the sea.

Facho

As a matter of fact construction is growing, revealing some disorder, but some watching points are still available, over the bay or the external coast.

Despite all the errors, driving up to Facho keeps being interesting.

Winter

Personal Memories

S. Martinho sadness and laughs

Concrete’s victory

Concrete is advancing towards the sea, smashing the natural beauty of the bay.

There is still a remaining free area in the southern side, dividing the beaches of S. Martinho do Porto and Salir do Porto, but… till when?

It seems that the coast is now protected. Good!

Maybe this will save what still lasts!

Cruel friends

Yes!

It’s OK like that.

Don’t move…

Hold on!

It’s only a second more!

Nice… Hold your breath.

No…no…no…

Don’t even blink!

Easy!

Now, tell us:

Is the tide going up or going down?

PS Beware – In S. Martinho everything is possible, friends can sometimes be awful, but the shallow and calm water invites to it.

São Martinho do Porto