December weather forecastMarmara, Turkey

December

Weather in December

December, the first month of the winter in Marmara, is also a frosty month, with an average temperature ranging between max 9.9°C (49.8°F) and min 5.8°C (42.4°F).

Temperature

Welcoming December, Marmara observes a shift in the average high-temperature, falling from November's moderate 15.3°C (59.5°F) to a frosty 9.9°C (49.8°F). In Marmara, December nights experience a modest descent in temperature from daily peaks, cooling down to an average of 5.8°C (42.4°F).

Humidity

In December, the average relative humidity is 78%.

Rainfall

The month with the most rainfall is December, when the rain falls for 14.1 days and typically aggregates up to 64mm (2.52") of precipitation.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 1.5 days. Throughout December, 34mm (1.34") of snow is accumulated. In Marmara, Turkey, during the entire year, snow falls for 9.3 days and aggregates up to 107mm (4.21") of snow.

Sea temperature

In December, the average sea temperature is 11.4°C (52.5°F).
Note: Unprotected swimming in 11.4°C (52.5°F) is dangerous due to potential cold shock. Especially when temperatures go below 10°C (50°F), leading to hyperventilation.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December in Marmara, sunrise is at 08:14 and sunset at 17:43. On the last day of the month, sunrise is at 08:33 and sunset at 17:52 +03.

Sunshine

December has the least sunshine of the year, with an average of 4.8h of sunshine.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 2 during December leads to these instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.

Updated: Aug 20, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature in Marmara during December are 9.9°C (49.8°F) and 5.8°C (42.4°F) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 32°C (89.6°F).

The average relative humidity in December is 78%.

The month with the most rainfall in Marmara is December, when the rain falls for 14.1 days and typically aggregates up to 64mm (2.52") of precipitation.

In Marmara, in December, during 14.1 rainfall days, 64mm (2.52") of precipitation is typically accumulated.

In Marmara, in December, during 1.5 snowfall days, 34mm (1.34") of snow is typically accumulated.

In Marmara, in December, the average water temperature is 11.4°C (52.5°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

The month with the shortest days is December, with an average of 9h and 18min of daylight.

The average day length in December is 9h and 20min.

On the first day of December, sunrise is at 08:14 and sunset at 17:43. On the last day of the month, sunrise is at 08:33 and sunset at 17:52 +03.

The month with the least sunshine is December, with an average of 4.8h of sunshine.

In December, the average sunshine duration is 4.8h.

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.

In Marmara, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

15.3°C

9.9°C

7.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

16.7km/h

17.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.1

1.5

3.9

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

18.1

14.5

13.7

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Marmara, Turkey

Average high temperature in December: 9.9°C

The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (7.7°C).

Average low temperature in December: 5.8°C

The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).

Average pressure in December
Marmara, Turkey

Average pressure in December: 1019.5mbar

The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is July (1011.6mbar).

Average wind speed in December
Marmara, Turkey

Average wind speed in December: 16.7km/h

The windiest month (with the highest average wind speed) is August (18.7km/h).
The calmest month (with the lowest average wind speed) is May (13.1km/h).

Average humidity in December
Marmara, Turkey

Average humidity in December: 78%

The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (62%).

Average rainfall in December
Marmara, Turkey

Average rainfall in December: 64mm

The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is August (11mm).

Average rainfall days in December
Marmara, Turkey

Average rainfall days in December: 14.1 days

The month with the highest number of rainy days is December (14.1 days).
The month with the least rainy days is August (2.8 days).

Average snowfall in December
Marmara, Turkey

Average snowfall in December: 34mm

The month with the highest snowfall is January (44mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Marmara, Turkey

Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature in December
Marmara, Turkey

Average sea temperature in December: 11.4°C

The best month for swimming (with the highest average sea temperature) is August (25.1°C).
The coldest month (with the lowest average sea temperature) is February (8.8°C).

Average daylight in December /
Average sunshine in December
Marmara, Turkey

Average daylight in December: 9h and 18min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

Average sunshine in December: 4h and 48min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in December
Marmara, Turkey

Average sunshine days in December: 14.5 days

The month with the most sunshine days is August (27.4 days).
The month with the least sunshine days is February (11.3 days).

Average UV index in December
Marmara, Turkey

Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Marmara, Turkey

Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 11).

Average visibility in December
Marmara, Turkey

Average visibility in December: 9km

The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).