Best Time to Visit Lençóis Maranhenses [2026]
Start by considering June to August for a lagoon trip, then check the circuits you want to visit. The calendar helps narrow your dates; rainfall, moving dunes and local conditions determine what you will find. A named month does not guarantee full lagoons or clear skies.
Short answer: June–August is a planning window, not a water-level forecast.
May to September is a general guide for finding more water after the rainy season, without a guarantee of full lagoons. Levels vary with the year's rainfall and from one lagoon to another; check recent conditions on your chosen circuit.
Considering April or May? Keep room for rain in the plan and request a recent assessment of the proposed lagoons before choosing your dates. Compare accommodation and excursion quotes for those dates too.
The Lagoon Cycle
Read this as a general seasonal pattern. ICMBio explains that rainfall and dune movement change the attractions, including their names. Conditions differ between years and circuits.
| Period | What Happens |
|---|---|
| Jan | Usually low or dry, with some lagoons always holding water (the kite season in Atins can run into January) |
| Feb-Mar | Filling up; honest low season, low prices |
| Apr | Rain can refill lagoons; check the actual circuits |
| May | A month to consider for lagoon trips, allowing for rain |
| Jun-Aug | A starting window for lagoon planning; confirm levels and weather |
| Sep-Oct | Receding water can change the choice of circuits |
| Nov-Dec | Fewer, smaller lagoons; by December most temporary ones are dry, but some always keep water |
Month-by-Month Calendar
Use June–August as a starting point, then compare April–May if you can keep the plan flexible around rain. For September–October, ask which lagoons still have water and which circuits are being proposed. February–March is low season, with lagoons in the filling period and low prices; the water in a particular lagoon still needs checking.
Want everything about the destination (bases, tours, how to get there)? See the complete Lençóis Maranhenses guide.
Considering April and May
Leave Room for Rain
April and May are worth comparing with the June–August window if you can adapt your outings. Ask about recent rain and the lagoons in the proposed circuit; do not assume they will have reached a fixed level by a particular week.
April:
- Check how the lagoons have responded to that year's rain
- Park green and lush
- Virtually no tourists
- Low-season prices
- It still rains — and the sunset doesn't always show up
May:
- Ask which lagoon circuits are being offered
- Allow for rain when arranging excursions
- Still few tourists
- Recent conditions matter more than the color in an old photo
Planning Around Rain
Rain is part of the lagoon cycle, but its duration and timing vary. Check the forecast close to departure and ask the operator how changes would affect the route, departure and return. In our experience, from February to April it rains mostly at night: mornings tend to bring sun and clouds, and the rest of the day is mixed. It rarely rains all day, but keep some flexibility in the plan.
Dates between November and March: what to expect
Outside the main window, the trip is still worth it; what changes is the trade-off. There are lagoons all year, just fewer and smaller — and in return everything is cheaper and calmer.
November to January
- Lagoons: the water keeps dropping and, by December, most temporary lagoons are dry. Some always keep water, and agencies take tours to the best ones available. The rains return in January, but the lagoons take time to fill.
- What to prioritize: things that don't depend on water levels — the Rio Preguiças boat trip, the dunes in the late afternoon and, in Atins, kitesurfing, whose season can run into January.
- In return: lower prices, a slower pace and far fewer people; some businesses close in the low season.
February and March
- Lagoons: this is the rainy season, which usually peaks in March and April; lagoons are filling and levels vary from one to the next.
- Rain: in our experience it rains mostly at night and rarely all day; still, keep a spare day in your plan.
- In Atins: when the water is at its highest, the village is easier to get around than it used to be; still, it's best to stay near the beach and the main avenues.
- In return: low-season prices and far fewer people; some businesses close.
Close to your trip, check: which lagoons and circuits are being offered for your dates, the rain forecast and, if you kite, the wind on our conditions page.
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How Much It Costs
Prices vary by village and how far in advance you book.
| Base | Guesthouse/night (low → high)* | 4×4 tour |
|---|---|---|
| Atins | R$330–850+ (luxury R$2,000+) | full day ~R$240 · half ~R$120 (Jun/2026) |
| Barreirinhas | R$70–250+ | varies |
| Santo Amaro | varies | varies |
*Guesthouse figures are indicative for 2026; they vary a lot with how far in advance you book and the season.
The difference: In high season (Jun-Aug), lodging is much more expensive than in the low season — prices swing a lot with the season.
Summary: Which Month?
| Profile | Best Time |
|---|---|
| First-timers | Jun-Aug |
| Avoid crowds | May (or the second half of April) |
| Tight budget | Nov-Jan or Feb-Mar (low season); Sep-Oct is already a little cheaper |
| Kite + lagoons | Usually July to November, sometimes June to December: ask us for your dates |
Choose a month from your priorities, then confirm the proposed outing. To compare walks, boat journeys and lagoon circuits from your base, use our Lençóis lagoon tour guide.
Picked your month? Next: choose a base — Santo Amaro, Barreirinhas or Atins — and plan a 3-, 4-, 5- or 7-day itinerary.
Frequently Asked Questions
What's the best month to visit Lençóis Maranhenses?
Start with June to August for a lagoon trip. April and May are also worth comparing if you can allow for rain. Confirm recent conditions on the circuits you want; no month guarantees full lagoons or clear skies.
Are the lagoons already full in April?
They may have accumulated water, but the answer depends on that year's rain and the lagoon. Ask about the specific circuits for your dates rather than relying on a fixed percentage for April or May.
Is it worth visiting Lençóis in the low season?
It can be, if you accept fewer lagoons (and, in February and March, more rain) in return for lower prices and far fewer people. February and March fall in the filling period; from November to January there are fewer lagoons, but always some with water. For September, check which lagoons retain water and which outings are proposed; there is no reliable fixed percentage for the whole park.
When do the Lençóis lagoons dry up?
Water usually starts dropping in the second half of the year, and by December most temporary lagoons are dry. Some always keep water, and agencies take tours to the best ones available. The timing differs between lagoons and years. Do not treat September as a universal start date: in July 2026, an ICMBio notice had already replaced one lagoon that lost its water with another in the same circuit. That dated example explains why you need a current assessment; it is not a report of today's water levels.
See Also
- Lençóis Maranhenses: Complete Guide — Everything about the destination
- Where to Stay in Lençóis — Santo Amaro, Barreirinhas or Atins
- Lençóis Express — 3-, 4-, 5- or 7-day itinerary
- Atins: The Lençóis Village — Base with lagoons on foot
- Rota das Emoções: Full Itinerary — 7-day itinerary
- What to Pack — Essential checklist
- Trekking Across the Lençóis — Walking days, routes and overnight stops
Seasonal guidance updated: 10 October 2026. Price references retain the dates shown above.