Climate averages 1991–2020
Boa Vista weather
in July.
A hot, very wet month: one of the coolest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Boa Vista: daytime highs average 28.3°C and nights cool to about 22.4°C. By daytime temperature it is one of the coolest months of the year.
Expect about 249 mm of rain on roughly 27 days, which makes July a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 16 min on an average July day.
The nearest other city in this atlas is Georgetown (524 km away). In July its highs average 27.8°C, 0.5°C cooler than Boa Vista, with 241 mm of rain.
Among the 448 cities listed in Brazil, Boa Vista ranks 92nd of 448 for the warmest July highs and 448th of 448 for the driest July (rainfall, lowest first). The mean July high of those 448 cities is 24.7°C; Boa Vista is 3.6°C warmer than that mean.
From July to August, average highs rise by 1.0°C to 29.3°C, and monthly rainfall falls from 249 mm to 156 mm.
The annual picture
July 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, selected | 28.3°C22.4°C | 22.4°C | 249 | 26.7 | 12.312 h |
| August | 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
July in nearby cities
- Georgetown in JulyGuyana · 524 kmHigh 27.8°C · Low 24.2°C · 241 mm rain
- Upata in JulyVenezuela · 609 kmHigh 29.0°C · Low 21.8°C · 162 mm rain
- Ciudad Guayana in JulyVenezuela · 652 kmHigh 29.4°C · Low 22.7°C · 191 mm rain
- Manaus in JulyBrazil · 662 kmHigh 29.6°C · Low 23.6°C · 105 mm rain
- Ciudad Bolívar in JulyVenezuela · 670 kmHigh 29.9°C · Low 23.1°C · 233 mm rain
- Manacapuru in JulyBrazil · 680 kmHigh 29.1°C · Low 24.2°C · 136 mm rain
- Paramaribo in JulySuriname · 698 kmHigh 29.2°C · Low 23.5°C · 214 mm rain
- Itacoatiara in JulyBrazil · 708 kmHigh 29.4°C · Low 24.3°C · 105 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.