Climate averages 1991–2020
Belém weather
in May.
A hot, very wet month: the joint 8th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Belém: daytime highs average 29.1°C and nights cool to about 24.3°C. By daytime temperature it is the joint 8th warmest of the 12 months.
Expect about 256 mm of rain on roughly 27 days, which makes May a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average May day.
The nearest other city in this atlas is Barcarena (15 km away). In May its highs average 29.2°C, about as warm as Belém, with 254 mm of rain.
Among the 448 cities listed in Brazil, Belém ranks joint 68th of 448 for the warmest May highs and 427th of 448 for the driest May (rainfall, lowest first). The mean May high of those 448 cities is 25.3°C; Belém is 3.8°C warmer than that mean.
From May to June, average highs rise by 0.4°C to 29.5°C, and monthly rainfall falls from 256 mm to 107 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Belém climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.1°C24.3°C | 24.3°C | 232 | 27.0 | 12.212 h |
| February | 28.6°C24.1°C | 24.1°C | 317 | 27.2 | 12.212 h |
| March | 28.5°C24.1°C | 24.1°C | 404 | 30.4 | 12.112 h |
| April | 28.6°C24.2°C | 24.2°C | 394 | 29.4 | 12.112 h |
| May, selected | 29.1°C24.3°C | 24.3°C | 256 | 26.9 | 12.112 h |
| June | 29.5°C24.3°C | 24.3°C | 107 | 20.0 | 12.012 h |
| July | 29.8°C24.1°C | 24.1°C | 68 | 15.0 | 12.012 h |
| August | 30.9°C24.4°C | 24.4°C | 36 | 10.0 | 12.112 h |
| September | 31.7°C24.6°C | 24.6°C | 24 | 6.7 | 12.112 h |
| October | 32.1°C24.8°C | 24.8°C | 27 | 6.4 | 12.112 h |
| November | 31.9°C25.0°C | 25.0°C | 44 | 7.3 | 12.212 h |
| December | 30.7°C24.9°C | 24.9°C | 108 | 17.8 | 12.212 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Barcarena in MayBrazil · 15 kmHigh 29.2°C · Low 24.3°C · 254 mm rain
- Ananindeua in MayBrazil · 18 kmHigh 29.4°C · Low 23.9°C · 311 mm rain
- Marituba in MayBrazil · 21 kmHigh 29.6°C · Low 23.7°C · 311 mm rain
- Santa Isabel do Pará in MayBrazil · 42 kmHigh 29.4°C · Low 23.2°C · 311 mm rain
- Abaetetuba in MayBrazil · 51 kmHigh 29.2°C · Low 24.1°C · 242 mm rain
- Moju in MayBrazil · 56 kmHigh 29.5°C · Low 23.3°C · 291 mm rain
- Castanhal in MayBrazil · 67 kmHigh 29.4°C · Low 23.0°C · 278 mm rain
- Cametá in MayBrazil · 141 kmHigh 29.4°C · Low 24.0°C · 267 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Belém) is explained once on the Belém year overview and on the Sources, method and limits page.