Constanţa
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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.

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

Constanţa Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Constanţa - and find the best time to visit.

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 records 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 →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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.

  • Swimming
    4/10
  • Cycling
    4/10
  • Walking
    4/10
  • Camping
    5/10
  • Outdoor sports
    4/10

Constanţa 3-Day Forecast

More climate data for Constanţa

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.