SeasonMapBarreirinhas (Lençóis Maranhenses) weather by month
Brazil
The best time to visit Barreirinhas (Lençóis Maranhenses) is June to August — 71/100 in June, 30°C and 11 rainy days. The best season is the dry season, June to December (67/100 on average).
The worst month is March at 50/100 — sweltering, soaked, clean air. See March →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Brazil →
Barreirinhas, month by month
Comfort score out of 100 for the kind of trip Barreirinhas is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 63 | C | 30°C | 25 d | 10 h | Busy | 1 |
| FebFebruary | 55 | D | 29°C | 26 d | 9 h | Busy | 1 |
| MarMarch | 50 | D | 29°C | 30 d | 9 h | Quiet | — |
| AprApril | 51 | D | 29°C | 27 d | 9 h | Quiet | — |
| MayMay | 62 | C | 30°C | 21 d | 10 h | Shoulder | — |
| JunJune | 71 | B | 30°C | 11 d | 11 h | Peak | 2 |
| JulJuly | 69 | C | 31°C | 5 d | 11 h | Peak | 1 |
| AugAugust | 66 | C | 32°C | 2 d | 11 h | Busy | 1 |
| SepSeptember | 64 | C | 32°C | 1 d | 11 h | Busy | 1 |
| OctOctober | 65 | C | 32°C | 1 d | 11 h | Shoulder | — |
| NovNovember | 65 | C | 31°C | 4 d | 11 h | Shoulder | 1 |
| DecDecember | 66 | C | 31°C | 10 d | 11 h | Busy | 1 |
What's on in Barreirinhas through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Barreirinhas in June
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.
Peak crowdsLagoons at their fullest, São João and bumba-meu-boi, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet