Belém weather in May
May in Belém: sweltering, soaked, with clean air — a fair time to visit.
#9 of 12 months in Belém · #565 of 604 destinations to visit in May · comfort 55/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Belém climate normals — May
| Daytime high | 29°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Feels like (high) | 35°C / 95°F | |
| Rainfall | 307 mm / 12.1 in | ⛈ soaked |
| Rainy days | 27 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 9.3 h/day | |
| Daylight | 12.1 h | |
| Wind | 12 km/h / 7 mph | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Belém?
Loading map…
Belém in May — FAQ
- Is May a good time to visit Belém?
- May in Belém: sweltering, soaked, with clean air — a fair time to visit. It ranks #9 of 12 months for Belém on SeasonMap's comfort score (55/100).
- What is the weather like in Belém in May?
- In May, Belém averages a daily high of 29.4°C and a low of 24.7°C, with about 306.8 mm of rain over roughly 27.2 rainy days.
- What is the air quality in Belém in May?
- Belém has a mean US Air Quality Index of about 35 in May.