Lençóis weather in May

May in Lençóis: hot, dry, with clean air — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Lençóis🇧🇷 Brazil · Northeast Brazil · Trekking80
  1. 69Jan
  2. 73Feb
  3. 72Mar
  4. 76Apr
  5. 80May
  6. 83Jun
  7. 85Jul
  8. 84Aug
  9. 82Sep
  10. 74Oct
  11. 72Nov
  12. 70Dec

#5 of 12 months in Lençóis · #738 of 1413 destinations to visit in May · comfort 80/100 (tier A)

Days
28°C
Nights
20°C
Wet days
8
Sun
8.8 h
Humidity
76%
Daylight
12 h
Lençóis, Brazil
Photo: Renato Nascimento · Pexels

Traveller notes on Lençóis in May

Lencois-forum reviews on a May visit describe this as genuinely right after the wet season ends, posters naming May-June as the real sweet spot when lagoons sit full from months of rain but skies have already cleared. Regulars call May considerably less crowded than the June-September peak, several posters naming this the real advantage for anyone wanting full lagoons without the busiest crowds. Posters call blue skies genuinely reliable by May, several regulars naming this the payoff after the wetter months leading up to it. Regulars call the dunes and lagoons at their most photogenic this time of year, several threads naming full water levels the reason May ranks among the best windows to visit. Posters recommend booking accommodation in Barreirinhas or Atins regardless of exact May dates, several regulars calling this standard given how central both are to reaching the park. The record: 27.7C days, 20.2C nights, 22.7mm across nearly 8 days and 76 percent humidity.
LencoisMayRegular · May · 1 month ago · Read more on Tripadvisor ↗

Other months in Lençóis

Lencois-forum threads on a February visit describe this as genuinely right at the start of the rainy season, posters naming lagoons that are visibly filling but not yet full to the rim this early. Regulars call one Carnaval-timed February trip a real example, the visitor recalling rain that started earlier and more intensely than expected but still finding enough water for the classic photos. Posters call February genuinely quieter than peak season, several regulars naming fewer tourists as a real advantage for anyone visiting this early. Regulars call isolated zones of the park genuinely still accessible for trekking in February, several threads naming this a real upside before later-season crowds and higher water complicate some routes. Posters recommend flexible expectations around exact water levels, several regulars calling this standard given how unpredictable February rainfall can be. The record: 30.6C days, 21.8C nights, 55.9mm across over 11 days and 73 percent humidity.
LencoisFebruaryRegular · February · 1 month ago · Read more on Tripadvisor ↗
Lencois-forum threads on a December visit describe October through December as genuinely when lagoons run at their lowest, posters questioning whether a mid-December trip is worth it given how the water cycle here works. Regulars call May-August the real recommended window instead, several posters naming this stretch as when lagoons stay full after the wet season ends. Posters call December-March genuinely worth avoiding if full lagoons matter most, several regulars naming this the honest tradeoff for anyone set on a December visit regardless. Regulars call the dunes still worth seeing even with drier lagoons, several threads naming sand-surfing and four-by-four tours real highlights independent of water levels. Posters recommend real flexibility and local advice, several regulars calling this standard given how much lagoon conditions vary by the week. The record: 30.7C days, 21.4C nights, an extraordinarily high 91.4mm across nearly 10 days and 71 percent humidity.
LencoisDecemberRegular · December · 1 month ago · Read more on Tripadvisor ↗
Lencois-forum threads on a June visit describe this as genuinely the best month here, posters calling the lagoons full and the wet season fully over by this point, a real combination that makes June the standout pick. Regulars call the May-August stretch the wider window worth targeting, several posters naming this the real period when lagoons stay full after the wet season ends. Posters recommend swimming, boat tours across the Preguicas River and trekking as genuine June standards, several regulars calling conditions here fairly stable this month. Regulars call June genuinely the priciest window, several threads warning accommodation in Atins runs noticeably higher than shoulder months given how sought after full lagoons are. Posters recommend booking well ahead for a June trip, several regulars calling this the tradeoff for hitting peak lagoon conditions. The record: 26.4C days, 18.7C nights, 17.6mm across nearly 8 days and 75 percent humidity.
LencoisJuneRegular · June · 1 month ago · Read more on Tripadvisor ↗
Lencois-forum threads on current Chapada Diamantina conditions describe multi-day treks through the park as genuinely rewarded by clear, sunny weather more often than not this time of year. Posters describe forested sections as delivering real cool relief underfoot, while open mountain stretches trade shade for a steady breeze between the peaks, both comfortable for serious hiking. Regulars recommend sturdy walking shoes and sunscreen as the only real gear essentials, conditions here rarely running severe enough to demand much more. Posters describe October as edging out September slightly for reliability, less rain risk and comparably mild temperatures, though September itself is entirely workable. Regulars call the waterfalls and canyon scenery worth building a multi-day itinerary around regardless of conditions. Posters recommend a local guide for the longer backcountry routes. The record: 28.5C days feeling like 30C, 19C nights, 69 percent humidity and 9.6 hours of sun.
LencoisSeptemberRegular · September · 1 month ago · Read more on Tripadvisor ↗

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Lençóis climate normals — May

Daytime high28°C / 82°F🥵 hot
Nighttime low20°C / 68°F
Feels like (high)30°C / 86°F
Rainfall23 mm / 0.9 in☀️ dry
Rainy days8 days
Humidity76%💦 very humid
Dew point19°C / 66°F
Sunshine8.8 h/day
Daylight11.5 h
Wind12 km/h / 8 mph
Air quality (US AQI)20🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Lençóis in May

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Shoulder seasonan ordinary month(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Lençóis's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherLençóis's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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What's on in Lençóis in May

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Trekking season

    15 Apr – 31 Oct · usuallyTrail season

    The Vale do Pati and the long routes out of town are walked from about April to October, when the river crossings are low and the tracks are firm. The falls run on less water, and the pools are clearer.

What's on around the world in May →

Where is Lençóis?

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Lençóis in May — FAQ

Is May a good time to visit Lençóis?
May in Lençóis: hot, dry, with clean air — an excellent time to visit. It ranks #5 of 12 months for Lençóis on SeasonMap's comfort score (80/100).
What is the weather like in Lençóis in May?
In May, Lençóis averages a daily high of 27.7°C and a low of 20.2°C, with about 22.7 mm of rain over roughly 7.9 rainy days.
What is the air quality in Lençóis in May?
Lençóis has a mean US Air Quality Index of about 20 in May.