Sereia
Setúbal, Portugal — Excellent water quality
Sereia is a coastal beach in Setúbal, Portugal, 3.07 km from Costa da Caparica. The beach holds a Blue Flag award, meeting strict standards for water quality, environmental management, and safety. It's open throughout its designated season, though swimmers should take appropriate caution. Drinking water…
Quick Overview
Plan Your Visit to Sereia
The key facts before you go
About the Beach
What is Sereia?
Sereia is a coastal beach in Setúbal, Portugal, 3.07 km from Costa da Caparica. The beach holds a Blue Flag award, meeting strict standards for water quality, environmental management, and safety. It's open throughout its designated season, though swimmers should take appropriate caution. Drinking water is available on-site. May, June, and September offer the best conditions, while July and August see the heaviest crowds. The Blue Flag certification means the water and facilities meet consistent quality standards.
It sits alongside certified beaches along Setúbal, part of a broader network of certified beaches throughout Portugal certified annually by the Foundation for Environmental Education.
Sunrise, Sunset & Beach Direction
Sereia faces E toward Atlantic Ocean. The best light for photography and swimming is typically in May, June, September. The beach's orientation determines when it catches direct sun — plan your visit around this to make the most of your time there.
Planning
When to Go — Month by Month
| Month | Air Temp | Water Temp | Crowds |
|---|---|---|---|
| Jan | 11°C | 8°C | Low |
| Feb | 13°C | 10°C | Low |
| Mar | 14°C | 11°C | Low |
| Apr | 15°C | 12°C | Low |
| May | 18°C | 15°C | Med |
| Jun | 20°C | 17°C | Med |
| Jul | 22°C | 19°C | High |
| Aug | 22°C | 19°C | High |
| Sep | 21°C | 18°C | Med |
| Oct | 19°C | 16°C | Low |
| Nov | 15°C | 12°C | Low |
| Dec | 13°C | 10°C | Low |
The best time to visit Sereia is May, June, September. Air temperatures peak around 22.1°C in summer. Peak water temperature reaches 19.1°C in July.
How crowded does Sereia get?Like most Blue Flag beaches in Portugal, Sereia sees its highest visitor numbers in July and August. The beach maintains a pleasant atmosphere even in peak season.
Is Sereia open year-round?The beach itself is accessible year-round, though staffed facilities including lifeguards typically operate only during the official season (typically July–September). The Blue Flag is displayed during the certification period only.
The Water
Swimming and Beach Life at Sereia
Is Sereia safe to swim?Sereia is Blue Flag certified, which requires meeting strict bathing water standards set by the EU Bathing Water Directive. Water quality is rated <span class="inline-stat">Excellent</span>. The beach does not have lifeguards stationed on the beach — swim with appropriate caution.
What is the water temperature at Sereia?Peak water temperature at Sereia reaches around <span class="inline-stat">19.1°C</span> in July, making it comfortable for swimming during the summer months. In winter (January), air temperatures average 11.4°C.
What is the beach like at Sereia?Sereia on the Setúbal coast of Portugal. It meets all Blue Flag criteria for environmental management, water quality, safety, and facilities.
Does Sereia have good facilities?As a Blue Flag certified beach, Sereia meets the Foundation for Environmental Education's standards for facilities and services.
Sereia sits on the Atlantic Ocean — explore all Blue Flag beaches on the Atlantic.
Planning a trip to Portugal? Blue Flag Beaches Portugal — our editorial guide to certified beaches across the country.
Transport
Getting to Sereia
How do I get to Sereia by car?Sereia is approximately 3.07 km from Costa da Caparica. Follow local road signs to the beach. Check Google Maps or a local map for the most current directions.
What is the nearest airport to Sereia?The nearest airport is Faro Airport (FAO), approximately 209.3 km away.
Can I get to Sereia by public transport?Public transport options vary by season. Check local transport authority websites for current bus and train schedules connecting to Costa da Caparica.
Practical Details
Practical Information
| At the Beach | |
| Entry | Free — no charge to access the beach |
|---|---|
| Lifeguards | ✗ |
| Disabled Access | Contact local authority for details |
| Showers | ✗ |
| Toilets | ✗ |
| Beach Type | Coastal beach |
| Visiting Information | |
| GPS Coordinates | 38.6192°N, 9.2197°W |
| Water Quality | Excellent (EU Bathing Water Directive) |
| Blue Flag Operator | Foundation for Environmental Education (FEE) — Portugal |
Frequently Asked Questions
Sereia FAQ
Is Sereia suitable for children?
Sereia is a Blue Flag certified beach in Setúbal, Portugal. The EU Excellent water quality rating means the water is safe and clean for all swimmers, including children. Blue Flag certification itself requires meeting strict environmental and safety standards that benefit all beach users.
Is Sereia free to access?
Yes, access to Sereia is free — there are no entry fees or charges to use the beach. Facilities including beach amenities are typically available during the official season at no charge. The beach is managed by local authorities under the Blue Flag programme.
When is the best time to visit Sereia?
The best time to visit Sereia is May, June, September. Water temperature peaks at around 19.1°C in July, which is ideal for swimming. Air temperatures reach 22.1°C in summer. If you prefer quieter conditions, visiting in June or September gives you warm weather with fewer crowds than the July–August peak. The Blue Flag is displayed during the certified season, confirming the beach meets all water quality and safety standards.
What is the water quality at Sereia?
Sereia is Blue Flag certified, which requires meeting strict annual water quality standards set by the EU Bathing Water Directive. Water quality is currently rated Excellent. Blue Flag certification is awarded by the Foundation for Environmental Education (FEE) and requires independent water quality monitoring throughout the season. The results are publicly available from the European Environment Agency.
How do I get to Sereia?
Sereia is located in Setúbal, Portugal. It is approximately 3.07 km from Costa da Caparica. The nearest airport is Faro Airport (FAO), 209.3 km away. Check local transport authority websites for current public transport schedules. A car is the most flexible option for reaching the beach, particularly outside peak season.
Explore More
More Blue Flag Beaches in Portugal
Editorial
From the Zeach Blog
Everything you need to know about what makes a beach qualify for Blue Flag status — from water quality to environmental education.
Read moreOur editorial team's pick of the standout Blue Flag beaches in Portugal — rated for family friendliness, scenery, and facilities.
Explore PortugalWhat the flag actually means, how certification works, and why a Blue Flag is a genuinely reliable signal — not just a marketing tool.
Read more