Climate averages 1991–2020
Riberalta weather
in December.
A hot, very wet month: the 6th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Riberalta: daytime highs average 29.8°C and nights cool to about 23.5°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 262 mm of rain on roughly 27 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 45 min on an average December day.
The nearest other city in this atlas is Rio Branco (224 km away). In December its highs average 29.5°C, about as warm as Riberalta, with 246 mm of rain.
Among the 14 cities listed in Bolivia, Riberalta ranks joint 1st of 14 for the warmest December highs and 13th of 14 for the driest December (rainfall, lowest first). The mean December high of those 14 cities is 22.5°C; Riberalta is 7.3°C warmer than that mean.
From December to January, average highs fall by 0.2°C to 29.6°C, and monthly rainfall rises from 262 mm to 269 mm.
The annual picture
December 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
Riberalta 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 | 269 | 27.7 | 12.713 h |
| February | 29.4°C23.3°C | 23.3°C | 260 | 25.4 | 12.512 h |
| March | 29.4°C23.3°C | 23.3°C | 255 | 27.8 | 12.212 h |
| April | 29.1°C22.9°C | 22.9°C | 174 | 23.3 | 11.912 h |
| May | 28.5°C22.0°C | 22.0°C | 81 | 15.7 | 11.612 h |
| June | 28.9°C21.3°C | 21.3°C | 34 | 7.0 | 11.511 h |
| July | 30.0°C20.7°C | 20.7°C | 24 | 4.8 | 11.512 h |
| August | 31.9°C21.8°C | 21.8°C | 40 | 6.3 | 11.712 h |
| September | 32.2°C23.1°C | 23.1°C | 84 | 13.6 | 12.012 h |
| October | 31.4°C23.6°C | 23.6°C | 159 | 20.7 | 12.312 h |
| November | 30.1°C23.4°C | 23.4°C | 222 | 23.6 | 12.613 h |
| December, selected | 29.8°C23.5°C | 23.5°C | 262 | 27.1 | 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
December in nearby cities
- Rio Branco in DecemberBrazil · 224 kmHigh 29.5°C · Low 23.0°C · 246 mm rain
- Porto Velho in DecemberBrazil · 343 kmHigh 29.7°C · Low 23.5°C · 298 mm rain
- Ariquemes in DecemberBrazil · 351 kmHigh 29.8°C · Low 22.9°C · 246 mm rain
- Puerto Maldonado in DecemberPeru · 385 kmHigh 29.4°C · Low 23.0°C · 330 mm rain
- Trinidad in DecemberBolivia · 443 kmHigh 29.5°C · Low 23.6°C · 298 mm rain
- Ji Paraná in DecemberBrazil · 448 kmHigh 29.5°C · Low 23.0°C · 248 mm rain
- Cacoal in DecemberBrazil · 505 kmHigh 29.4°C · Low 22.8°C · 284 mm rain
- La Paz in DecemberBolivia · 651 kmHigh 14.8°C · Low 5.7°C · 112 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 Riberalta) is explained once on the Riberalta year overview and on the Sources, method and limits page.