SeasonMapBarreirinhas (Lençóis Maranhenses) weather in May
Brazil
May in Barreirinhas: hot, soaked, with clean air — a gamble, with 21 rainy days.
#9 of 12 months in Barreirinhas · #1155 of 1383 destinations to visit in May · comfort 61/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Barreirinhas in May
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Barreirinhas climate normals — May
| Daytime high | 30°C / 86°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Sea temperature | 30°C / 86°F | ♨️ bath-warm |
| Rainfall | 184 mm / 7.2 in | ⛈ soaked |
| Rainy days | 21 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 10.2 h/day | |
| Daylight | 12 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 27 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Barreirinhas 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)
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).
Fair weatherBarreirinhas's weather peaks June–August.
Best weatherFair weatherToughest weather
Where is Barreirinhas?
Barreirinhas in May — FAQ
- Is May a good time to visit Barreirinhas?
- May in Barreirinhas: hot, soaked, with clean air — a gamble, with 21 rainy days. It ranks #9 of 12 months for Barreirinhas on SeasonMap's comfort score (61/100).
- What is the weather like in Barreirinhas in May?
- In May, Barreirinhas averages a daily high of 29.8°C and a low of 24.9°C, with about 183.8 mm of rain over roughly 21 rainy days.
- What is the air quality in Barreirinhas in May?
- Barreirinhas has a mean US Air Quality Index of about 27 in May.