Climate averages 1991–2020
Belém weather
in August.
A hot, fairly dry month: the 4th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Belém: daytime highs average 30.9°C and nights cool to about 24.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 36 mm of rain on roughly 10 days, which makes August a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 04 min on an average August day.
The nearest other city in this atlas is Barcarena (15 km away). In August its highs average 31.0°C, about as warm as Belém, with 34 mm of rain.
Among the 448 cities listed in Brazil, Belém ranks joint 68th of 448 for the warmest August highs and joint 238th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Belém is 4.7°C warmer than that mean.
From August to September, average highs rise by 0.8°C to 31.7°C, and monthly rainfall falls from 36 mm to 24 mm.
The annual picture
August 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 | 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, selected | 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
August in nearby cities
- Barcarena in AugustBrazil · 15 kmHigh 31.0°C · Low 24.6°C · 34 mm rain
- Ananindeua in AugustBrazil · 18 kmHigh 31.2°C · Low 23.9°C · 56 mm rain
- Marituba in AugustBrazil · 21 kmHigh 31.4°C · Low 23.6°C · 56 mm rain
- Santa Isabel do Pará in AugustBrazil · 42 kmHigh 31.1°C · Low 23.4°C · 56 mm rain
- Abaetetuba in AugustBrazil · 51 kmHigh 31.5°C · Low 24.6°C · 30 mm rain
- Moju in AugustBrazil · 56 kmHigh 32.4°C · Low 23.7°C · 34 mm rain
- Castanhal in AugustBrazil · 67 kmHigh 31.2°C · Low 23.0°C · 51 mm rain
- Cametá in AugustBrazil · 141 kmHigh 32.3°C · Low 24.4°C · 40 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.