San Gregorio de Polanco Weather in December
San Gregorio de Polanco in December averages 29°C (84°F) during the day and 17°C (63°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in San Gregorio de Polanco in December
You can expect rain on roughly 10 days based on historical data, averaging 113 mm (4.4 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in San Gregorio de Polanco in December
In December, San Gregorio de Polanco gets high temperatures, with highs of 29°C (84°F). Nights cool to around 17°C (63°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 17°C (63°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in San Gregorio de Polanco in December
Expect sunny days throughout the month, with an estimated 287 hours of sunshine. This makes it a pleasant time to visit San Gregorio de Polanco.Should you favor a climate that's both dry and comfortably warm, March typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Uruguay, check out our San Gregorio de Polanco's climate page.
San Gregorio de Polanco Temperature in December
Min Temperature
17°C (63°F)
Max Temperature
29°C (84°F)
Chance of Rain
33%
Precipitation
113 mm (4.4 in)
Rainy days
10 days
Humidity
62% *
Sunshine
287 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in San Gregorio de Polanco typically rise from around 27°C (81°F) at the start of December to approximately 30°C (86°F) by the end. Nights are pleasant, with lows typically ranging from 16°C (61°F) to 19°C (66°F).
Average temperatures in December
Historical weather for San Gregorio de Polanco in December
Browse day-by-day weather records for San Gregorio de Polanco spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Gregorio de Polanco historical weather extremes in December
Based on 45 years of weather observations (1980-2025), these are the most extreme conditions recorded in San Gregorio de Polanco.
- The hottest December day on record in San Gregorio de Polanco reached 40°C (104°F) (December 26, 1999).
- The lowest daytime temperature in December was 16°C (61°F), recorded on December 3, 2001.
- San Gregorio de Polanco registered its coldest December night on December 13, 2010, with temperatures dropping to 8°C (46°F).
Best Places in Uruguay in December
Find out more about the weather in Uruguay and which places have the best travel conditions in this month. See all of Uruguay in December →
perfect weather
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tolerable
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What to Wear in San Gregorio de Polanco in December
Warm but pleasant conditions in San Gregorio de Polanco in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in San Gregorio de Polanco 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 Uruguay, check out our San Gregorio de Polanco's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Gregorio de Polanco climate overview or explore weather in Uruguay.
