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Istanbul
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Istanbul Weather December

Istanbul is situated in Mediterranean climate zone that typically has warm or hot summer with mild rains and soft but rainy winter.

To help you choose the best time to travel, you can find climate data below on the weather in Istanbul in December.

day temperatureaverage daily high+10.8°C
night temperatureaverage daily low+5.5°C
sea temperaturesea temperature+11°C
day lengthdaytime9.8 h
sunny hours per daysunny / overcast hours2.2 / 7.6
average monthly precipitationaverage monthly precipitation123 mm

Best time with the soft weather for the sightseeing and long walks in Istanbul are May, June, September.

Best places in December


Temperature in Istanbul

In December the average daily maximum in Istanbul is +10.8°C, and the minimum +5.5°C.

The hottest December day on record is +25.8°C, and the coldest -7°C.

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Best beach resorts in December:

Dubai
UAE

Phuket
Thailand

Bangkok
Thailand

Cancun
Mexico

Sanya
China

Pattaya
Thailand


Tulum
Mexico

Playa del Carmen
Mexico

Patong Beach
Thailand

Puerto Vallarta
Mexico

Acapulco
Mexico

Punta Cana
Dominican Republic


Daylight hours

There are 9.8 hours of daylight in Istanbul in December. Out of these, on average 2.2 are sunny, which means the sun is almost never visible.

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Sea temperature

The average monthly temperature in the Sea of Marmara on the beaches of Istanbul in December is +11°C.

The water is very cold and only suitable to bathe in shortly for the most hardy people.

Istanbul climate by month


Precipitation

The amount of precipitation in Istanbul in December is usually 123 mm, which may ruin part of the trip.