Climate averages 1991–2020
Porto Velho weather
in April.
A hot, very wet month: the 11th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Porto Velho: daytime highs average 29.2°C and nights cool to about 23.3°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 228 mm of rain on roughly 26 days, which makes April a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average April day.
The nearest other city in this atlas is Ariquemes (159 km away). In April its highs average 29.4°C, about as warm as Porto Velho, with 185 mm of rain.
Among the 448 cities listed in Brazil, Porto Velho ranks joint 67th of 448 for the warmest April highs and 403rd of 448 for the driest April (rainfall, lowest first). The mean April high of those 448 cities is 27.0°C; Porto Velho is 2.3°C warmer than that mean.
From April to May, average highs fall by 0.2°C to 29.1°C, and monthly rainfall falls from 228 mm to 133 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Ariquemes in AprilBrazil · 159 kmHigh 29.4°C · Low 22.7°C · 185 mm rain
- Ji Paraná in AprilBrazil · 319 kmHigh 29.2°C · Low 22.6°C · 148 mm rain
- Riberalta in AprilBolivia · 343 kmHigh 29.1°C · Low 22.9°C · 174 mm rain
- Cacoal in AprilBrazil · 401 kmHigh 29.3°C · Low 22.4°C · 151 mm rain
- Rio Branco in AprilBrazil · 449 kmHigh 28.9°C · Low 22.4°C · 160 mm rain
- Coari in AprilBrazil · 527 kmHigh 28.8°C · Low 23.8°C · 335 mm rain
- Vilhena in AprilBrazil · 603 kmHigh 27.6°C · Low 20.4°C · 128 mm rain
- Tefé in AprilBrazil · 606 kmHigh 29.0°C · Low 23.4°C · 351 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.