SeasonMapBarreirinhas (Lençóis Maranhenses) weather in March
Brazil
March in Barreirinhas: warm, soaked, with clean air — a gamble, with 30 rainy days.
#11 of 12 months in Barreirinhas · #1282 of 1383 destinations to visit in March · comfort 51/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Barreirinhas in March
No notes yet. Open Barreirinhas on the map to add the first one.
Barreirinhas climate normals — March
| Daytime high | 29°C / 84°F | 🌤 warm |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Sea temperature | 29°C / 84°F | ♨️ bath-warm |
| Rainfall | 390 mm / 15.4 in | ⛈ soaked |
| Rainy days | 30 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 24°C / 74°F | |
| Sunshine | 8.7 h/day | |
| Daylight | 12.1 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 23 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Barreirinhas in March
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.
Quietschool holidays in 3 of the markets that fill it, one of its worst months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Barreirinhas'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).
Toughest weatherBarreirinhas's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in Barreirinhas in March
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Wet season
MonsoonRisk30 rainy days and about 390 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Where is Barreirinhas?
Barreirinhas in March — FAQ
- Is March a good time to visit Barreirinhas?
- March in Barreirinhas: warm, soaked, with clean air — a gamble, with 30 rainy days. It ranks #11 of 12 months for Barreirinhas on SeasonMap's comfort score (51/100).
- What is the weather like in Barreirinhas in March?
- In March, Barreirinhas averages a daily high of 28.7°C and a low of 24.1°C, with about 389.9 mm of rain over roughly 30.4 rainy days.
- What is the air quality in Barreirinhas in March?
- Barreirinhas has a mean US Air Quality Index of about 23 in March.