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Sao Luis is the capital of Maranhao, a coastal city in northeast Brazil with a UNESCO-listed colonial centre, a 15 km beachfront and year-round temperatures between 23 and 34 degrees Celsius. Rainfall splits the year in two: a wet season from January to July and a dry season from August to December. This guide links to seven detailed articles covering the monthly weather, the best time to visit, things to do, events, neighbourhoods, where to stay and practical travel tips.
Welcome to Sao Luis
Sao Luis sits on an island between Sao Marcos Bay and the Atlantic Ocean, connected to the mainland by bridge. The city of about 1.1 million people was founded by the French in 1612, named after King Louis XIII, then ruled in turn by the Portuguese and, briefly, the Dutch. Its historic centre, added to the UNESCO World Heritage list in 1997, holds roughly 3,500 colonial buildings, many covered in blue and white Portuguese azulejo tiles. Beyond the old town, the beach districts of Calhau, Sao Marcos and Ponta d’Areia run north along the coast, and the city serves as the main gateway to Lencois Maranhenses National Park.
Sao Luis Weather at a Glance
Sao Luis has a hot, humid equatorial climate. Average highs run from 30.3 degrees Celsius in March to 33.5 degrees Celsius in November, while lows stay between 23.4 and 25.0 degrees Celsius all year. Annual rainfall averages 2,117 mm, concentrated from January to July: March is the wettest month at 453 mm and April follows at 431 mm. The dry season runs August to December, with September and October averaging only 3 mm of rain each. Humidity sits between 77 and 85 percent and sea temperatures stay near 27 to 28 degrees Celsius year-round. For the full month-by-month numbers, read the Sao Luis weather by month guide.
Sao Luis Seasonal Snapshot
- January to April: heaviest rain, 235 to 453 mm a month, highs around 30 to 31 degrees Celsius.
- May to July: rain eases from 312 mm to 111 mm, and Bumba Meu Boi fills June and July.
- August to November: dry season, 3 to 23 mm a month, highs climbing to 33.5 degrees Celsius in November.
- December: first rain returns at around 55 mm as the wet season begins again.
Sao Luis Quick Facts
- Best beach months: September and October, driest and sunniest.
- Wettest month: March, at 453 mm of rain.
- Hottest month: November, average high 33.5 degrees Celsius.
- Sea temperature: 27 to 28 degrees Celsius year-round.
- Lencois Maranhenses lagoons fullest: June to September.
- Currency: Brazilian real (R$). Airport code: SLZ.
Sao Luis Travel Guides
- Sao Luis Weather by Month – monthly temperatures, rainfall, humidity and sea temperature with a full data table.
- Best Time to Visit Sao Luis – the dry and rainy seasons, the cheapest months and the Lencois Maranhenses window.
- Things to Do in Sao Luis – the UNESCO historic centre, the beaches and day trips to Alcantara and Lencois Maranhenses, with hours and prices.
- Events and Festivals in Sao Luis – Bumba Meu Boi, Carnival, tambor de crioula and the year-round reggae scene.
- Sao Luis Neighborhoods – the historic centre, Ponta d’Areia, Sao Marcos, Calhau and Renascenca explained.
- Where to Stay in Sao Luis – hotels in each area across luxury, mid-range and budget tiers.
- Sao Luis Travel Tips and FAQ – airport transport, getting around, money, safety and the questions travellers ask most.
Where to Stay in Sao Luis
The three practical bases are the historic centre for sightseeing, Calhau for the beach and Ponta d’Areia for restaurants and nightlife. The full area-by-area breakdown, with nine hotels across three price tiers, is in the where to stay in Sao Luis guide.
Suggested Hotels in Sao Luis
Hotel Luzeiros Sao Luis
A five-star hotel on the Ponta do Farol waterfront with a spa, pool and beach access. Best for couples and travellers who want the city’s top-end stay. Check rates and availability
Blue Tree Towers Sao Luis
A beachfront five-star on Calhau with a pool, spa and tennis court. Best for families who want resort facilities on the sand. Check rates and availability
Ibis Sao Luis
A budget chain hotel near Calhau beach and the shopping malls. Best for travellers who want a reliable, low-cost room. Check rates and availability
