Climate averages 1991–2020
Bello weather
in December.
A warm, very wet month: the 10th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Bello: daytime highs average 24.1°C and nights cool to about 15.4°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 193 mm of rain on roughly 24 days, which makes December a very wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 46 min on an average December day.
The nearest other city in this atlas is Medellín (10 km away). In December its highs average 23.6°C, about as warm as Bello, with 193 mm of rain.
Among the 46 cities listed in Colombia, Bello ranks 32nd of 46 for the warmest December highs and joint 33rd of 46 for the driest December (rainfall, lowest first). The mean December high of those 46 cities is 25.7°C; Bello is 1.7°C cooler than that mean.
From December to January, average highs rise by 0.7°C to 24.7°C, and monthly rainfall falls from 193 mm to 134 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
Bello climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.7°C15.1°C | 15.1°C | 134 | 21.3 | 11.812 h |
| February | 25.2°C15.4°C | 15.4°C | 169 | 22.9 | 11.912 h |
| March | 25.3°C15.6°C | 15.6°C | 268 | 28.1 | 12.112 h |
| April | 24.7°C16.0°C | 16.0°C | 335 | 28.6 | 12.312 h |
| May | 24.5°C16.0°C | 16.0°C | 337 | 29.5 | 12.412 h |
| June | 25.0°C15.3°C | 15.3°C | 208 | 26.7 | 12.512 h |
| July | 25.5°C14.7°C | 14.7°C | 172 | 25.6 | 12.512 h |
| August | 26.0°C14.9°C | 14.9°C | 180 | 25.0 | 12.312 h |
| September | 25.3°C15.2°C | 15.2°C | 247 | 27.2 | 12.212 h |
| October | 24.0°C15.6°C | 15.6°C | 307 | 29.2 | 12.012 h |
| November | 23.4°C15.7°C | 15.7°C | 294 | 28.6 | 11.812 h |
| December, selected | 24.1°C15.4°C | 15.4°C | 193 | 23.9 | 11.812 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
- Medellín in DecemberColombia · 10 kmHigh 23.6°C · Low 15.1°C · 193 mm rain
- Caldas in DecemberColombia · 29 kmHigh 22.0°C · Low 13.4°C · 169 mm rain
- Rionegro in DecemberColombia · 29 kmHigh 20.8°C · Low 13.1°C · 220 mm rain
- La Dorada in DecemberColombia · 140 kmHigh 30.5°C · Low 21.9°C · 116 mm rain
- Quibdó in DecemberColombia · 141 kmHigh 27.8°C · Low 22.6°C · 610 mm rain
- Montelíbano in DecemberColombia · 183 kmHigh 29.6°C · Low 23.2°C · 96 mm rain
- Chigorodó in DecemberColombia · 193 kmHigh 28.9°C · Low 22.7°C · 210 mm rain
- Barrancabermeja in DecemberColombia · 205 kmHigh 29.1°C · Low 23.0°C · 245 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 Bello) is explained once on the Bello year overview and on the Sources, method and limits page.
Medellín lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.