Climate averages 1991–2020
Rio Branco weather
in June.
A hot, fairly dry month: the joint 10th warmest and the 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
June is a hot month in Rio Branco: daytime highs average 28.9°C and nights cool to about 20.9°C. By daytime temperature it is the joint 10th warmest of the 12 months.
Expect about 30 mm of rain on roughly 7 days, which makes June a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 33 min on an average June day.
The nearest other city in this atlas is Riberalta (224 km away). In June its highs average 28.9°C, about as warm as Rio Branco, with 34 mm of rain.
Among the 448 cities listed in Brazil, Rio Branco ranks joint 77th of 448 for the warmest June highs and joint 155th of 448 for the driest June (rainfall, lowest first). The mean June high of those 448 cities is 24.7°C; Rio Branco is 4.2°C warmer than that mean.
From June to July, average highs rise by 1.5°C to 30.4°C, and monthly rainfall falls from 30 mm to 21 mm.
The annual picture
June 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
Rio Branco climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.4°C22.9°C | 22.9°C | 255 | 27.6 | 12.613 h |
| February | 29.2°C22.8°C | 22.8°C | 243 | 25.3 | 12.412 h |
| March | 29.2°C22.8°C | 22.8°C | 249 | 27.2 | 12.212 h |
| April | 28.9°C22.4°C | 22.4°C | 160 | 22.7 | 11.912 h |
| May | 28.4°C21.6°C | 21.6°C | 76 | 15.4 | 11.712 h |
| June, selected | 28.9°C20.9°C | 20.9°C | 30 | 6.8 | 11.612 h |
| July | 30.4°C20.4°C | 20.4°C | 21 | 4.2 | 11.612 h |
| August | 32.1°C21.4°C | 21.4°C | 38 | 6.3 | 11.812 h |
| September | 32.4°C22.7°C | 22.7°C | 76 | 11.9 | 12.012 h |
| October | 31.5°C23.0°C | 23.0°C | 137 | 19.5 | 12.312 h |
| November | 30.1°C22.9°C | 22.9°C | 199 | 22.9 | 12.613 h |
| December | 29.5°C23.0°C | 23.0°C | 246 | 26.3 | 12.713 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
June in nearby cities
- Riberalta in JuneBolivia · 224 kmHigh 28.9°C · Low 21.3°C · 34 mm rain
- Puerto Maldonado in JunePeru · 328 kmHigh 27.5°C · Low 20.4°C · 52 mm rain
- Porto Velho in JuneBrazil · 449 kmHigh 29.7°C · Low 22.3°C · 43 mm rain
- Ariquemes in JuneBrazil · 522 kmHigh 30.7°C · Low 21.5°C · 20 mm rain
- Cruzeiro do Sul in JuneBrazil · 595 kmHigh 27.9°C · Low 21.4°C · 81 mm rain
- Cusco in JunePeru · 601 kmHigh 15.0°C · Low 5.4°C · 11 mm rain
- Trinidad in JuneBolivia · 626 kmHigh 27.4°C · Low 20.0°C · 54 mm rain
- Ji Paraná in JuneBrazil · 649 kmHigh 30.5°C · Low 20.9°C · 18 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 Rio Branco) is explained once on the Rio Branco year overview and on the Sources, method and limits page.