Climate averages 1991–2020
Riberalta weather
in May.
A hot, moderately wet month: the coolest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Riberalta: daytime highs average 28.5°C and nights cool to about 22.0°C. By daytime temperature it is the coolest month of the year.
Expect about 81 mm of rain on roughly 16 days, which makes May a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 37 min on an average May day.
The nearest other city in this atlas is Rio Branco (224 km away). In May its highs average 28.4°C, about as warm as Riberalta, with 76 mm of rain.
Among the 14 cities listed in Bolivia, Riberalta ranks 1st of 14 for the warmest May highs and 12th of 14 for the driest May (rainfall, lowest first). The mean May high of those 14 cities is 20.3°C; Riberalta is 8.1°C warmer than that mean.
From May to June, average highs rise by 0.4°C to 28.9°C, and monthly rainfall falls from 81 mm to 34 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Rio Branco in MayBrazil · 224 kmHigh 28.4°C · Low 21.6°C · 76 mm rain
- Porto Velho in MayBrazil · 343 kmHigh 29.1°C · Low 22.9°C · 133 mm rain
- Ariquemes in MayBrazil · 351 kmHigh 29.3°C · Low 22.2°C · 91 mm rain
- Puerto Maldonado in MayPeru · 385 kmHigh 27.7°C · Low 21.1°C · 88 mm rain
- Trinidad in MayBolivia · 443 kmHigh 27.6°C · Low 20.9°C · 84 mm rain
- Ji Paraná in MayBrazil · 448 kmHigh 29.2°C · Low 21.8°C · 78 mm rain
- Cacoal in MayBrazil · 505 kmHigh 29.3°C · Low 21.6°C · 77 mm rain
- La Paz in MayBolivia · 651 kmHigh 14.1°C · Low 2.4°C · 16 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.