Monthly climate guide
Boa Vista weather in August
August in Boa Vista is typically hot, with average daytime highs around 31°C (87°F) and night-time lows near 23°C (74°F). The month usually brings about 146 mm of rain (wet) and is often cloudy. Daytime highs are about the same as July and 2°C cooler than September.
What stands out in August
- Only 2 months are cooler in Boa Vista than August.
- Rain is above Boa Vista's usual level, by about 44%.
- This is rainy-season territory in Boa Vista: short, heavy downpours are typical.
- Humidity near 84% makes 31°C feel stickier than it sounds.
Avg high
31°C
87°F
Avg low
23°C
74°F
Rainfall
146 mm
wet
Humidity
84%
relative
Sky
62%
cloud · often cloudy
Boa Vista weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 36°C / 97°F | 24°C / 76°F | 13 mm | 55% | 54% |
| February | 36°C / 97°F | 25°C / 76°F | 28 mm | 55% | 65% |
| March | 37°C / 98°F | 25°C / 78°F | 33 mm | 53% | 64% |
| April | 35°C / 94°F | 25°C / 77°F | 101 mm | 64% | 74% |
| May | 31°C / 88°F | 24°C / 75°F | 254 mm | 80% | 78% |
| June | 30°C / 86°F | 23°C / 73°F | 225 mm | 84% | 71% |
| July | 30°C / 86°F | 23°C / 73°F | 220 mm | 85% | 68% |
| August | 31°C / 87°F | 23°C / 74°F | 146 mm | 84% | 62% |
| September | 32°C / 90°F | 23°C / 74°F | 66 mm | 79% | 55% |
| October | 34°C / 93°F | 24°C / 76°F | 51 mm | 71% | 57% |
| November | 35°C / 94°F | 25°C / 76°F | 57 mm | 67% | 64% |
| December | 35°C / 95°F | 24°C / 76°F | 26 mm | 63% | 58% |
What to pack for August
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- A compact umbrella or packable rain jacket
- Water-resistant shoes
- Quick-dry fabrics — it feels stickier than the temperature suggests
Is August a good time to visit Boa Vista?
Compare the months in the chart above to find your ideal window.
Best time to visit Boa Vista →Other Brazil cities in August
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Boa Vista weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/brazil/boa-vista-brazil/august
<a href="https://weathercompare.eu/weather/brazil/boa-vista-brazil/august">Boa Vista weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/brazil/boa-vista-brazil" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Boa Vista weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/brazil/boa-vista-brazil/august">Boa Vista weather in August</a> – WeatherCompare</p>
Boa Vista in August: quick answers
Is August a good time to visit Boa Vista?
August is one of the wetter months in Boa Vista, with about 146 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Boa Vista in August?
Average highs are about 31°C (87°F) and average lows about 23°C (74°F), based on 10 years of daily data.
Does it rain a lot in Boa Vista in August?
Boa Vista typically gets around 146 mm of rain in August — wet.
Figures are long-term averages for the area around Boa Vista (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.