Climate averages 1991–2020
Pasto weather
in December.
A mild, very wet month: the 11th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Pasto: daytime highs average 17.4°C and nights cool to about 10.9°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 221 mm of rain on roughly 26 days, which makes December a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average December day.
The nearest other city in this atlas is Ipiales (59 km away). In December its highs average 16.1°C, 1.4°C cooler than Pasto, with 269 mm of rain.
Among the 46 cities listed in Colombia, Pasto ranks 45th of 46 for the warmest December highs and 37th of 46 for the driest December (rainfall, lowest first). The mean December high of those 46 cities is 25.7°C; Pasto is 8.3°C cooler than that mean.
From December to January, average highs rise by 0.2°C to 17.6°C, and monthly rainfall falls from 221 mm to 177 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
Pasto climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.6°C10.9°C | 10.9°C | 177 | 22.4 | 12.112 h |
| February | 17.9°C11.0°C | 11.0°C | 184 | 22.6 | 12.112 h |
| March | 17.9°C11.1°C | 11.1°C | 235 | 27.5 | 12.112 h |
| April | 17.9°C11.3°C | 11.3°C | 231 | 27.5 | 12.112 h |
| May | 17.8°C11.3°C | 11.3°C | 181 | 27.3 | 12.212 h |
| June | 17.6°C11.0°C | 11.0°C | 114 | 23.7 | 12.212 h |
| July | 17.6°C10.5°C | 10.5°C | 92 | 22.2 | 12.212 h |
| August | 18.5°C10.2°C | 10.2°C | 63 | 16.6 | 12.212 h |
| September | 18.9°C10.3°C | 10.3°C | 99 | 19.9 | 12.112 h |
| October | 18.1°C10.6°C | 10.6°C | 195 | 25.2 | 12.112 h |
| November | 17.3°C10.8°C | 10.8°C | 244 | 26.5 | 12.112 h |
| December, selected | 17.4°C10.9°C | 10.9°C | 221 | 25.7 | 12.112 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
- Ipiales in DecemberColombia · 59 kmHigh 16.1°C · Low 9.5°C · 269 mm rain
- Tulcán in DecemberEcuador · 66 kmHigh 16.4°C · Low 9.8°C · 269 mm rain
- Ibarra in DecemberEcuador · 135 kmHigh 19.6°C · Low 11.5°C · 165 mm rain
- Pitalito in DecemberColombia · 154 kmHigh 23.2°C · Low 15.1°C · 227 mm rain
- Popayán in DecemberColombia · 155 kmHigh 21.6°C · Low 14.6°C · 292 mm rain
- Tumaco in DecemberColombia · 180 kmHigh 26.3°C · Low 24.0°C · 313 mm rain
- Florencia in DecemberColombia · 191 kmHigh 27.2°C · Low 18.4°C · 143 mm rain
- Cali in DecemberColombia · 260 kmHigh 25.3°C · Low 19.1°C · 364 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 Pasto) is explained once on the Pasto year overview and on the Sources, method and limits page.