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Lençóis Maranhenses
Lençóis Maranhenses · Maranhão Excellent time to visit Spring Shoulder season

Lençóis Maranhenses in September

Short answer

In September, Lençóis Maranhenses averages highs of 32 °C (90 °F) and lows of 24 °C (75 °F), with about 3 mm of rain spread over roughly 1 day. September is a dry month, good for outdoor plans. Crowds tend to be moderate this month.

Climate · INMET (updated 2026)
Most reviewed activity in Lençóis MaranhensesBonita Lagoon Off-Roading Tour★ 9.3 · 33 reviews · from US$ 24 · via CivitatisSee dates and price →
Temperature
32 / 24 °C
high / low
Rain
3 mm
1 day
Daylight
12h06
sunset at 17:49
Crowds
Moderate
1 public holiday

What to expect in Lençóis Maranhenses in September

Myllena Vieira, editor at Visite
Editor's tip

September is spring in Lençóis Maranhenses. In Brazil the seasons are the reverse of those in the Northern Hemisphere. Highs reach 32 °C (90 °F): the heat calls for early starts, sunscreen, and spending the middle of the day in the shade or in the water. Crowds sit somewhere in the middle, with peaks on public holidays. Outside those dates, you can enjoy the place at an easy pace and spend less. It also rains very little: this is one of the driest months of the year, good for anyone who wants an outdoor itinerary.

Myllena Vieira · Editor at Visite
Crowds
Crowd level: moderate

Moderate crowds, with peaks on public holidays. Outside those dates, you can enjoy the place at a calmer pace.

Prices
Rates: moderate

Moderate prices outside public holidays, which push rates and crowds up.

Tours and tickets

Things to do in Lençóis Maranhenses in September

booking on Civitatis
Bonita Lagoon Off-Roading Tour
9.3· 33 reviews

Bonita Lagoon Off-Roading Tour

Get lost among the dunes and oases of the Lençóis Maranhenses protected area on this off-roading vehicle tour to Lagoa Bonita. It's a stunning landscape!

6 h
from US$ 24
Book →
Blue Lagoons Day Trip
9.3· 25 reviews

Blue Lagoons Day Trip

Lose yourself in the dunes of Barreirinhas with this fantastic day trip to the Blue Lagoon, one of the most beautiful lagoons in the region.

4 h
from US$ 24
Book →
Preguicas River Speedboat Trip
8.8· 23 reviews

Preguicas River Speedboat Trip

Discover a beautiful natural protected area that meets the Atlantic Ocean with this fantastic speedboat trip on the Preguiças River.

7 h 50 min
from US$ 24
Book →
Atins Lagoon Off-Roading Tour
8.8· 23 reviews

Atins Lagoon Off-Roading Tour

Explore the beautiful surroundings of Barreirinhas on this fantastic off-roading tour around the Atins lagoon. You won't regret it!

9 h 30 min
from US$ 39
Book →
Speedboat Transfer between Barreirinhas and Atins
8.3· 20 reviews

Speedboat Transfer between Barreirinhas and Atins

This speedboat transport between Barreirinhas and Atins is the most comfortable way to get between two of the most iconic cities in Maranhão.

2 h 30 min
from US$ 34
Book →
Santo Amaro Off-Roading Tour
9.2· 10 reviews

Santo Amaro Off-Roading Tour

Explore the beautiful sandy landscapes of Santo Amaro in a unique way with this off-roading tour. It'll be an experience you'll never forget!

11 h 30 min
from US$ 79
Book →
See all activities in Lençóis Maranhenses
Where to stay

Hotels in Lençóis Maranhenses

In September, demand in Lençóis Maranhenses is moderate: most hotels have room, but public holidays fill them up. Compare rates and book a few weeks ahead.

Porto Preguicas Resort in Lençóis Maranhenses 8.9 ★★★★★ · 19 reviews Porto Preguicas Resort See on Booking → VILA ATY LODGE in Lençóis Maranhenses 4.8 ★★★★★ · 1 review VILA ATY LODGE See on Booking →
See all hotels in Lençóis Maranhenses

Rates change with the dates: confirm the price on Booking.com.

What happens in September

No major fixed festivals in September, but public holidays (Independence Day) bring more people to the destination.

Public holidays in September: Independence Day (07/09). Expect more people and higher prices around these dates.

What to pack in September

Light clothing and a cap · highs of 32 °C (90 °F) Sunscreen and sunglasses · strong sun on the tours Comfortable walking shoes · you will be on foot much of the day
Looking for better weather?

Where the weather is good in September

These destinations have the best weather comfort for September, scored with the same calculation of rain, heat and humidity. Tap to see what the month is like in each one.

Diamantina 86
Diamantina
Minas Gerais · see September →
Belo Horizonte 79
Belo Horizonte
Minas Gerais · see September →
Brumadinho 79
Brumadinho
Minas Gerais · see September →
Mariana 79
Mariana
Minas Gerais · see September →
See all destinations by month

Torn between Lençóis Maranhenses and another destination?

See Lençóis Maranhenses next to the destinations that usually compete for the same trip: month-by-month weather, driving cost, ideal length of stay and travel style, side by side.

Lençóis Maranhenses or Arraial do Cabo? Lençóis Maranhenses or Campos do Jordão? Lençóis Maranhenses or Fernando de Noronha?
see all comparisons →

Questions about Lençóis Maranhenses in September

What is the weather like in Lençóis Maranhenses in September?
In September, Lençóis Maranhenses averages highs of 32 °C (90 °F) and lows of 24 °C (75 °F), with about 3 mm of rain spread over roughly 1 day. September is a dry month, good for outdoor plans. Crowds tend to be moderate this month.
Does it rain a lot in Lençóis Maranhenses in September?
In September, Lençóis Maranhenses gets about 3 mm of rain spread over around 1 rainy day, one of the driest months. It is a dry month, with little chance of rain spoiling your plans.
Is September high season in Lençóis Maranhenses?
Crowds in September tend to be moderate. Moderate prices outside public holidays, which push rates and crowds up.
What is happening in Lençóis Maranhenses in September?
No major fixed festivals in September, but public holidays (Independence Day) bring more people to the destination.
Does it usually rain all day in Lençóis Maranhenses in September?
INMET's climate normals record the number of rainy days and the total millimeters, not the hours of each day, so they do not say how long the rain lasts. What they show for Lençóis Maranhenses in September: 1 rainy day in a month of 30 days (about 3% of the days) and 3 mm over the month, which works out to an average of about 3 mm per rainy day. Compared with the rest of the year, September is one of the driest months at the destination. It is a dry month, with little chance of rain spoiling your plans.
What is the temperature in Lençóis Maranhenses in September, and what should you pack?
According to INMET's climate normals, the average high in Lençóis Maranhenses in September is 32 °C and the average low is 24 °C, with air humidity of around 78%. Compared with the rest of the year, the temperature in September is typical for the destination. For your suitcase, here is what those numbers call for: light clothing and a cap; sunscreen and sunglasses; comfortable walking shoes.
Is Lençóis Maranhenses worth visiting in September?
Excellent time to visit. On our weather comfort index, which weighs rain, heat and humidity from INMET's climate normals, September scores 77 out of 100 and ranks No. 2 among the 12 months. The most comfortable month is October (79) and the least comfortable is April (31). As for crowds, in September they tend to be moderate.
August see the full year October