SeasonMapColonia del Sacramento weather in December
Uruguay
December in Colonia del Sacramento: hot, rainy, with clean air — an excellent time to visit.
#5 of 12 months in Colonia del Sacramento · #282 of 1383 destinations to visit in December · comfort 85/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Colonia del Sacramento in December
No notes yet. Open Colonia del Sacramento on the map to add the first one.
Colonia del Sacramento climate normals — December
| Daytime high | 27°C / 80°F | 🥵 hot |
|---|---|---|
| Nighttime low | 19°C / 65°F | |
| Feels like (high) | 29°C / 84°F | |
| Sea temperature | 25°C / 77°F | 😎 warm sea |
| Rainfall | 82 mm / 3.2 in | 🌧 rainy |
| Rainy days | 7 days | |
| Humidity | 64% | 💧 humid |
| Dew point | 15°C / 60°F | |
| Sunshine | 12 h/day | |
| Daylight | 14.4 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 27 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Colonia del Sacramento in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySummer season, school holidays in 4 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Colonia del Sacramento's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherColonia del Sacramento's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Colonia del Sacramento in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Summer season
15 Dec – 28 FebSchool holidaysCrowdedBook earlyBuenos Aires is an hour away by fast ferry and January empties into the old town. The cobbled streets and the riverfront restaurants are full, and rooms in the historic quarter go well ahead.
Nearby, and something's on
Within 300 km of Colonia del Sacramento — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Colonia del Sacramento?
Colonia del Sacramento in December — FAQ
- Is December a good time to visit Colonia del Sacramento?
- December in Colonia del Sacramento: hot, rainy, with clean air — an excellent time to visit. It ranks #5 of 12 months for Colonia del Sacramento on SeasonMap's comfort score (85/100).
- What is the weather like in Colonia del Sacramento in December?
- In December, Colonia del Sacramento averages a daily high of 26.9°C and a low of 18.6°C, with about 82.3 mm of rain over roughly 7.2 rainy days.
- What is the air quality in Colonia del Sacramento in December?
- Colonia del Sacramento has a mean US Air Quality Index of about 27 in December.
Other months in Colonia del Sacramento
Compare Colonia del Sacramento in December
Warmer or cooler than Colonia del Sacramento in December
Similar destinations in South America — December
Within 300 km: Montevideo's Rambla and beach season around 1 Dec – 15 Mar, and Buenos Aires' January summer shutdown around 24 Dec – 1 Feb.