Constanţa Weather in December
During December, Constanţa experiences low daytime temperatures of 8°C (46°F) and cooler nights around 2°C (36°F). As part of the winter season, some rainfall is to be expected.
Rainfall in Constanţa in December
Rain is expected on roughly 10 days, totalling around 49 mm (1.9 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Constanţa in December
December in Constanţa sees highs of 8°C (46°F) and lows of 2°C (36°F) overnight. The month of December belongs to the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. Nights fall to 2°C (36°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Constanţa in December
This month is characterized by fewer sunny days, with about 81 hours of sunshine. It's great for those who appreciate cooler, less sunny days.
Wind Speed in Constanţa in December
Wind speeds average 5 m/s (10 knots) during December. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.
Average water temperature in December
The water temperature is only 11°C (52°F) this month — cold enough that most people will want to stay out. Hardy swimmers may manage a quick dip, but it won't be comfortable.If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Constanţa. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 Constanţa's climate page.
Constanţa Temperature in December
Min Temperature
2°C (36°F)
Max Temperature
8°C (46°F)
Water Temperature
11°C (52°F)
Chance of Rain
34%
Precipitation
49 mm (1.9 in)
Rainy days
10 days
Humidity
88%
Windspeed
5 m/s (10 knots)
Sunshine
81 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Constanţa typically stay consistent throughout December, with daily highs averaging around 8°C (46°F). Nights are cold, with lows typically ranging from -1°C (30°F) to 2°C (36°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 Constanţa in December
Browse day-by-day weather records for Constanţa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Constanţa historical weather extremes in December
According to our 49 years of weather records for Constanţa, the following extremes were recorded between 1976 and 2025.
- The hottest December day on record in Constanţa reached 21°C (70°F) (December 2, 2023).
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 →
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What to Wear in Constanţa 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. With water temperatures around 11°C (52°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Constanţa 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 Constanţa's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Constanţa climate overview or explore weather in Romania.
