Climate averages 1991–2020
Tulcán weather
in December.
A mild, very wet month: the 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Tulcán: daytime highs average 16.4°C and nights cool to about 9.8°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 269 mm of rain on roughly 29 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 04 min on an average December day.
The nearest other city in this atlas is Ipiales (9 km away). In December its highs average 16.1°C, about as warm as Tulcán, with 269 mm of rain.
Among the 9 cities listed in Ecuador, Tulcán ranks 9th of 9 for the warmest December highs and 9th of 9 for the driest December (rainfall, lowest first). The mean December high of those 9 cities is 23.5°C; Tulcán is 7.1°C cooler than that mean.
From December to January, average highs fall by 0.1°C to 16.3°C, and monthly rainfall falls from 269 mm to 220 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
Tulcán climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 16.3°C9.6°C | 9.6°C | 220 | 27.5 | 12.112 h |
| February | 16.6°C9.7°C | 9.7°C | 207 | 25.1 | 12.112 h |
| March | 16.6°C9.8°C | 9.8°C | 251 | 29.4 | 12.112 h |
| April | 16.5°C9.9°C | 9.9°C | 258 | 29.2 | 12.112 h |
| May | 16.2°C9.8°C | 9.8°C | 200 | 29.8 | 12.212 h |
| June | 15.4°C9.0°C | 9.0°C | 160 | 27.4 | 12.212 h |
| July | 15.0°C8.4°C | 8.4°C | 147 | 27.0 | 12.212 h |
| August | 15.6°C8.2°C | 8.2°C | 94 | 22.7 | 12.112 h |
| September | 16.5°C8.7°C | 8.7°C | 109 | 21.9 | 12.112 h |
| October | 16.8°C9.4°C | 9.4°C | 230 | 27.4 | 12.112 h |
| November | 16.7°C9.9°C | 9.9°C | 290 | 28.0 | 12.112 h |
| December, selected | 16.4°C9.8°C | 9.8°C | 269 | 29.1 | 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 · 9 kmHigh 16.1°C · Low 9.5°C · 269 mm rain
- Pasto in DecemberColombia · 66 kmHigh 17.4°C · Low 10.9°C · 221 mm rain
- Ibarra in DecemberEcuador · 69 kmHigh 19.6°C · Low 11.5°C · 165 mm rain
- Tumaco in DecemberColombia · 162 kmHigh 26.3°C · Low 24.0°C · 313 mm rain
- Santo Domingo de los Colorados in DecemberEcuador · 201 kmHigh 24.2°C · Low 19.6°C · 235 mm rain
- Esmeraldas in DecemberEcuador · 216 kmHigh 27.7°C · Low 23.3°C · 138 mm rain
- Pitalito in DecemberColombia · 218 kmHigh 23.2°C · Low 15.1°C · 227 mm rain
- Popayán in DecemberColombia · 218 kmHigh 21.6°C · Low 14.6°C · 292 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 Tulcán) is explained once on the Tulcán year overview and on the Sources, method and limits page.
Ipiales lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.