Sincelejo Weather in December
December in Sincelejo averages 32°C (90°F) during the day and 24°C (75°F) at night. Quite a bit of rainfall is typical this month, with around 96 mm (3.8 in) on average. An umbrella is a good idea.
Rainfall in Sincelejo in December
Rain is expected on roughly 5 days, totalling around 96 mm (3.8 in) for the month. Showers tend to be short but heavy rather than persistent drizzle. When it rains, it usually means it, but it doesn't last long.
Temperature in Sincelejo in December
In December, Sincelejo sees very high temperatures, with highs of 32°C (90°F). Nights drop to around 24°C (75°F). It's usually most comfortable outside during the morning and later in the day. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Sincelejo in December
The days are predominantly sunny, with an estimated total of around 219 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Colombia, check out our Sincelejo's climate page.
Sincelejo Temperature in December
Min Temperature
24°C (75°F)
Max Temperature
32°C (90°F)
Chance of Rain
15%
Precipitation
96 mm (3.8 in)
Rainy days
5 days
Humidity
78%
Sunshine
219 hours
Percentage Sunshine
Historical weather for Sincelejo in December
Browse day-by-day weather records for Sincelejo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sincelejo historical weather extremes in December
Based on weather observations in Sincelejo between 2006 and 2025, these are the recorded extremes during December.
- The hottest December day on record in Sincelejo reached 38°C (100°F) (December 30, 2015).
- Sincelejo experienced its chilliest December day on December 15, 2010, reaching only 26°C (79°F).
- The lowest overnight temperature recorded in December was 20°C (68°F) (December 5, 2025).
- The wettest December day on record brought 36 mm (1.4 in) of precipitation to Sincelejo (December 3, 2010).
Best Places in Colombia in December
Find out more about the weather in Colombia and which places have the best travel conditions in this month. See all of Colombia in December →
perfect weather
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What to Wear in Sincelejo in December
Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Sincelejo in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Colombia, check out our Sincelejo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Sincelejo climate overview or explore weather in Colombia.
