December weather forecast
Mamaia, Romania

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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.
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Frequently asked questions

Is it cold in Mamaia during December?

December temperatures in Mamaia, Romania, vary between a high-temperature of 6°C (42.8°F) and a low-temperature of 0°C (32°F).

How much does it rain in Mamaia in December?

In December, in Mamaia, Romania, the rain falls for 10 days. Throughout December, 39mm (1.54") of precipitation is accumulated.

What is the water temperature in December in Mamaia?

In December, the average sea temperature in Mamaia is 9°C (48.2°F). Swimming in 9°C (48.2°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the month with the shortest days in Mamaia?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

What is the average length of the day in December in Mamaia?

In December, the average day length in Mamaia is 8h and 56min.

What time are sunrise and sunset in December in Mamaia?

On the first day of December in Mamaia, Romania, 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.

What is the month with the least sunshine in Mamaia?

January, February and December, with an average of 2h of sunshine, are months with the least sunshine in Mamaia.

How many hours of sunshine does Mamaia have in December?

In December, the average sunshine duration in Mamaia, Romania, is 2h.

When is the lowest UV index in Mamaia?

The months with the lowest UV index in Mamaia, Romania, are January and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Mamaia?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Average low temperature
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in December
Mamaia, Romania

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).

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Average rainfall in December
Mamaia, Romania

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).

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Average rainfall days in December
Mamaia, Romania

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).

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Average sea temperature in December
Mamaia, Romania

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).

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Average daylight in December /
Average sunshine in December
Mamaia, Romania

Average daylight in December / Average sunshine in December - Mamaia, Romania
  • Average daylight in December: 8h and 5min

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).

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Average UV index in December
Mamaia, Romania

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).

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Mamaia, Romania

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