Climate averages 1991–2020
Macapá weather
in August.
A hot, moderately wet month: the joint 4th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Macapá: daytime highs average 30.1°C and nights cool to about 24.4°C. By daytime temperature it is the joint 4th warmest of the 12 months.
Expect about 73 mm of rain on roughly 18 days, which makes August a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 07 min on an average August day.
The nearest other city in this atlas is Santana (15 km away). In August its highs average 30.4°C, about as warm as Macapá, with 59 mm of rain.
Among the 448 cities listed in Brazil, Macapá ranks joint 85th of 448 for the warmest August highs and joint 357th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Macapá is 3.9°C warmer than that mean.
From August to September, average highs rise by 1.1°C to 31.2°C, and monthly rainfall falls from 73 mm to 26 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
Macapá climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.5°C23.5°C | 23.5°C | 274 | 29.2 | 12.112 h |
| February | 28.0°C23.3°C | 23.3°C | 325 | 27.0 | 12.112 h |
| March | 28.1°C23.4°C | 23.4°C | 387 | 29.2 | 12.112 h |
| April | 28.1°C23.4°C | 23.4°C | 384 | 29.2 | 12.112 h |
| May | 28.4°C23.6°C | 23.6°C | 357 | 29.6 | 12.112 h |
| June | 28.7°C23.7°C | 23.7°C | 205 | 27.3 | 12.112 h |
| July | 29.0°C23.7°C | 23.7°C | 155 | 25.8 | 12.112 h |
| August, selected | 30.1°C24.4°C | 24.4°C | 73 | 17.9 | 12.112 h |
| September | 31.2°C24.8°C | 24.8°C | 26 | 8.7 | 12.112 h |
| October | 31.8°C25.0°C | 25.0°C | 17 | 4.5 | 12.112 h |
| November | 31.6°C25.0°C | 25.0°C | 35 | 8.5 | 12.112 h |
| December | 30.1°C24.3°C | 24.3°C | 128 | 22.8 | 12.112 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
- Santana in AugustBrazil · 15 kmHigh 30.4°C · Low 24.3°C · 59 mm rain
- Breves in AugustBrazil · 202 kmHigh 31.9°C · Low 24.1°C · 39 mm rain
- Cametá in AugustBrazil · 308 kmHigh 32.3°C · Low 24.4°C · 40 mm rain
- Abaetetuba in AugustBrazil · 312 kmHigh 31.5°C · Low 24.6°C · 30 mm rain
- Barcarena in AugustBrazil · 321 kmHigh 31.0°C · Low 24.6°C · 34 mm rain
- Belém in AugustBrazil · 330 kmHigh 30.9°C · Low 24.4°C · 36 mm rain
- Moju in AugustBrazil · 333 kmHigh 32.4°C · Low 23.7°C · 34 mm rain
- Ananindeua in AugustBrazil · 338 kmHigh 31.2°C · Low 23.9°C · 56 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 Macapá) is explained once on the Macapá year overview and on the Sources, method and limits page.