Climate averages 1991–2020
Boa Vista weather
in August.
A hot, wet month: the 9th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Boa Vista: daytime highs average 29.3°C and nights cool to about 22.7°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 156 mm of rain on roughly 22 days, which makes August a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 12 min on an average August day.
The nearest other city in this atlas is Georgetown (524 km away). In August its highs average 28.6°C, 0.7°C cooler than Boa Vista, with 161 mm of rain.
Among the 448 cities listed in Brazil, Boa Vista ranks joint 106th of 448 for the warmest August highs and 448th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Boa Vista is 3.1°C warmer than that mean.
From August to September, average highs rise by 1.4°C to 30.8°C, and monthly rainfall falls from 156 mm to 94 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
Boa Vista climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.1°C24.1°C | 24.1°C | 34 | 6.7 | 12.012 h |
| February | 32.5°C24.3°C | 24.3°C | 31 | 5.8 | 12.012 h |
| March | 33.0°C24.6°C | 24.6°C | 59 | 9.1 | 12.112 h |
| April | 31.1°C24.0°C | 24.0°C | 200 | 17.4 | 12.212 h |
| May | 28.8°C23.2°C | 23.2°C | 343 | 26.4 | 12.212 h |
| June | 28.3°C22.7°C | 22.7°C | 310 | 27.3 | 12.312 h |
| July | 28.3°C22.4°C | 22.4°C | 249 | 26.7 | 12.312 h |
| August, selected | 29.3°C22.7°C | 22.7°C | 156 | 22.2 | 12.212 h |
| September | 30.8°C23.2°C | 23.2°C | 94 | 15.4 | 12.112 h |
| October | 31.8°C23.8°C | 23.8°C | 71 | 12.8 | 12.112 h |
| November | 31.6°C24.0°C | 24.0°C | 90 | 13.6 | 12.012 h |
| December | 31.5°C24.1°C | 24.1°C | 58 | 10.3 | 12.012 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
- Georgetown in AugustGuyana · 524 kmHigh 28.6°C · Low 24.8°C · 161 mm rain
- Upata in AugustVenezuela · 609 kmHigh 29.6°C · Low 21.9°C · 154 mm rain
- Ciudad Guayana in AugustVenezuela · 652 kmHigh 30.1°C · Low 22.9°C · 161 mm rain
- Manaus in AugustBrazil · 662 kmHigh 30.8°C · Low 24.1°C · 99 mm rain
- Ciudad Bolívar in AugustVenezuela · 670 kmHigh 30.2°C · Low 23.3°C · 221 mm rain
- Manacapuru in AugustBrazil · 680 kmHigh 30.2°C · Low 24.8°C · 120 mm rain
- Paramaribo in AugustSuriname · 698 kmHigh 30.0°C · Low 23.8°C · 128 mm rain
- Itacoatiara in AugustBrazil · 708 kmHigh 30.6°C · Low 24.9°C · 89 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 Boa Vista) is explained once on the Boa Vista year overview and on the Sources, method and limits page.