Climate averages 1991–2020
Porto Velho weather
in June.
A hot, moderately wet month: the joint 6th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a hot month in Porto Velho: daytime highs average 29.7°C and nights cool to about 22.3°C. By daytime temperature it is the joint 6th warmest of the 12 months.
Expect about 43 mm of rain on roughly 10 days, which makes June a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 37 min on an average June day.
The nearest other city in this atlas is Ariquemes (159 km away). In June its highs average 30.7°C, 0.9°C warmer than Porto Velho, with 20 mm of rain.
Among the 448 cities listed in Brazil, Porto Velho ranks joint 49th of 448 for the warmest June highs and joint 220th of 448 for the driest June (rainfall, lowest first). The mean June high of those 448 cities is 24.7°C; Porto Velho is 5.0°C warmer than that mean.
From June to July, average highs rise by 1.6°C to 31.3°C, and monthly rainfall falls from 43 mm to 22 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
Porto Velho climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.6°C23.4°C | 23.4°C | 303 | 28.6 | 12.613 h |
| February | 29.4°C23.3°C | 23.3°C | 318 | 27.0 | 12.412 h |
| March | 29.3°C23.4°C | 23.4°C | 328 | 29.4 | 12.212 h |
| April | 29.2°C23.3°C | 23.3°C | 228 | 26.4 | 11.912 h |
| May | 29.1°C22.9°C | 22.9°C | 133 | 21.4 | 11.712 h |
| June, selected | 29.7°C22.3°C | 22.3°C | 43 | 9.5 | 11.612 h |
| July | 31.3°C21.9°C | 21.9°C | 22 | 4.7 | 11.712 h |
| August | 33.0°C22.9°C | 22.9°C | 42 | 7.5 | 11.812 h |
| September | 32.6°C23.8°C | 23.8°C | 103 | 16.7 | 12.012 h |
| October | 31.7°C23.9°C | 23.9°C | 178 | 23.2 | 12.312 h |
| November | 30.3°C23.7°C | 23.7°C | 245 | 26.2 | 12.513 h |
| December | 29.7°C23.5°C | 23.5°C | 298 | 28.7 | 12.613 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
- Ariquemes in JuneBrazil · 159 kmHigh 30.7°C · Low 21.5°C · 20 mm rain
- Ji Paraná in JuneBrazil · 319 kmHigh 30.5°C · Low 20.9°C · 18 mm rain
- Riberalta in JuneBolivia · 343 kmHigh 28.9°C · Low 21.3°C · 34 mm rain
- Cacoal in JuneBrazil · 401 kmHigh 30.7°C · Low 20.5°C · 17 mm rain
- Rio Branco in JuneBrazil · 449 kmHigh 28.9°C · Low 20.9°C · 30 mm rain
- Coari in JuneBrazil · 527 kmHigh 28.4°C · Low 23.5°C · 167 mm rain
- Vilhena in JuneBrazil · 603 kmHigh 28.3°C · Low 18.5°C · 14 mm rain
- Tefé in JuneBrazil · 606 kmHigh 28.3°C · Low 22.9°C · 205 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 Porto Velho) is explained once on the Porto Velho year overview and on the Sources, method and limits page.