December weather forecastMamaia, Romania
December
Weather in December
In December, Mamaia fully welcomes winter, the coldest time of the year. Temperatures typically range from 0°C (32°F) to 6°C (42.8°F), capturing the chilling extremes before January. The shortened daylight hours, lower sea temperatures, and reduced sunshine minutes are all indicative of the winter solstice's effects. Though there's an increase in rainfall and its frequency, the pattern of snowfall dominates the climatic scene. With the UV index hitting its yearly low, Mamaia’s beautiful winter wonderland emerges with a thick white blanket of snow.Temperature
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a cool 11°C (51.8°F) in November to a chilly 6°C (42.8°F). The temperature dips to an average of 0°C (32°F) during December nights.Rainfall
In December, the rain falls for 10 days. Throughout December, 39mm (1.54") of precipitation is accumulated. Throughout the year, in Mamaia, Romania, there are 97 rainfall days, and 410mm (16.14") of precipitation is accumulated.Sea temperature
In Mamaia, in December, the average water temperature is 9°C (48.2°F).Note: Diving into 9°C (48.2°F) when it's under 10°C (50°F) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of December, sunrise is at 07:21 and sunset at 16:27. On the last day of the month, sunrise is at 07:40 and sunset at 16:36 EET.
Sunshine
January, February and December, with an average of 2h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in Mamaia are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. It's recommended to limit sun exposure when its radiation is at its peak during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mamaia, Romania
- Average high temperature in December: 6°C
The warmest months (with the highest average high temperature) are July and August (26°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in December: 0°C
The months with the highest average low temperature are July and August (18°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average rainfall in December
Mamaia, Romania
- Average rainfall in December: 39mm
The wettest months (with the highest rainfall) are June and November (42mm).
The driest month (with the least rainfall) is March (27mm).
Average rainfall days in December
Mamaia, Romania
- Average rainfall days in December: 10 days
The months with the highest number of rainy days are January and December (10 days).
The months with the least rainy days are August and September (5 days).
Average sea temperature in December
Mamaia, Romania
- Average sea temperature in December: 9°C
The best month for swimming (with the highest average sea temperature) is August (24°C).
The coldest month (with the lowest average sea temperature) is February (6°C).
Average daylight in December /
Average sunshine in December
Mamaia, Romania
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 2h
The month with the most sunshine is July (Average sunshine: 8h).
The months with the least sunshine are January, February and December (Average sunshine: 2h).
Average UV index in December
Mamaia, Romania
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January and December (UV index 1).





