Climate averages 1991–2020
Cacoal weather
in July.
A hot, very dry month: the 3rd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Cacoal: daytime highs average 32.2°C and nights cool to about 20.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 11 mm of rain on roughly 2 days, which makes July a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 31 min on an average July day.
The nearest other city in this atlas is Ji Paraná (83 km away). In July its highs average 32.2°C, about as warm as Cacoal, with 11 mm of rain.
Among the 448 cities listed in Brazil, Cacoal ranks joint 18th of 448 for the warmest July highs and joint 109th of 448 for the driest July (rainfall, lowest first). The mean July high of those 448 cities is 24.7°C; Cacoal is 7.4°C warmer than that mean.
From July to August, average highs rise by 1.5°C to 33.7°C, and monthly rainfall rises from 11 mm to 26 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
Cacoal climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.1°C22.7°C | 22.7°C | 308 | 29.3 | 12.713 h |
| February | 28.9°C22.6°C | 22.6°C | 299 | 26.6 | 12.512 h |
| March | 29.2°C22.6°C | 22.6°C | 270 | 28.2 | 12.212 h |
| April | 29.3°C22.4°C | 22.4°C | 151 | 22.3 | 11.912 h |
| May | 29.3°C21.6°C | 21.6°C | 77 | 13.4 | 11.612 h |
| June | 30.7°C20.5°C | 20.5°C | 17 | 3.5 | 11.511 h |
| July, selected | 32.2°C20.3°C | 20.3°C | 11 | 2.1 | 11.512 h |
| August | 33.7°C21.5°C | 21.5°C | 26 | 4.7 | 11.712 h |
| September | 33.3°C23.0°C | 23.0°C | 90 | 14.1 | 12.012 h |
| October | 32.0°C23.2°C | 23.2°C | 156 | 21.7 | 12.312 h |
| November | 30.3°C22.9°C | 22.9°C | 239 | 24.9 | 12.613 h |
| December | 29.4°C22.8°C | 22.8°C | 284 | 27.9 | 12.813 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
- Ji Paraná in JulyBrazil · 83 kmHigh 32.2°C · Low 20.8°C · 11 mm rain
- Vilhena in JulyBrazil · 202 kmHigh 29.3°C · Low 18.2°C · 10 mm rain
- Ariquemes in JulyBrazil · 243 kmHigh 32.7°C · Low 21.5°C · 13 mm rain
- Porto Velho in JulyBrazil · 401 kmHigh 31.3°C · Low 21.9°C · 22 mm rain
- Riberalta in JulyBolivia · 505 kmHigh 30.0°C · Low 20.7°C · 24 mm rain
- Trinidad in JulyBolivia · 531 kmHigh 27.9°C · Low 19.3°C · 41 mm rain
- Tangará da Serra in JulyBrazil · 556 kmHigh 29.0°C · Low 17.1°C · 5.7 mm rain
- Lucas do Rio Verde in JulyBrazil · 628 kmHigh 30.9°C · Low 19.4°C · 1.3 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 Cacoal) is explained once on the Cacoal year overview and on the Sources, method and limits page.