Sinaia Weather in December
Sinaia in December sees low temperatures, with highs around 2°C (36°F) and overnight lows of -5°C (23°F). Around 53 mm (2.1 in) of snow/rainfall is typical, so a light rain jacket is a sensible addition to your bag.
Rainfall in Sinaia in December
Historically, the month has about 15 days of snow/rain, averaging 53 mm (2.1 in) in total. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Sinaia in December
In December, Sinaia sees low temperatures, with highs of 2°C (36°F). Nights drop to around -5°C (23°F). Winter occurs in December. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. Nights are well below freezing at -5°C (23°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. As one of the coldest months, it's important to layer up to stay warm. Don't let the chill catch you off-guard.December in Sinaia can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Romania, check out our Sinaia's climate page.
Sinaia Temperature in December
Min Temperature
-5°C (23°F)
Max Temperature
2°C (36°F)
Chance of Rain
50%
Precipitation
53 mm (2.1 in)
Rainy days
15 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sinaia typically stay consistent throughout December, with daily highs averaging around 2°C (36°F). Nights are very cold, with lows typically ranging from -10°C (14°F) to -7°C (19°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Sinaia in December
Browse day-by-day weather records for Sinaia spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sinaia historical weather extremes in December
The extremes listed below come from historical weather data collected in Sinaia from 1976 through 2025.
- The hottest December day on record in Sinaia reached 18°C (64°F) (December 18, 1989).
Best Places in Romania in December
Find out more about the weather in Romania and which places have the best travel conditions in this month. See all of Romania in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Sinaia in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Sinaia 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 Romania, check out our Sinaia's climate page.
See the full Sinaia climate overview or explore weather in Romania.
