Day
11 °C
Night
5 °C
Sea
11 °C
Precipitation
109 mm
in month
Rainy days
12 days
in month
Daylight
9 hours
average
Sunshine
4 hours
average
Humidity
79 %
We make the most from 40 years of historical weather data to predict the best weather conditions.
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We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.
In December in Istanbul, the average air temperature ranges from 11 °C (51 °F) during the day to 5 °C (42 °F) at night. There are 12 days of rain on average, where the rainfall is 109 mm (4.29 in).
In December there are not good conditions to visit Istanbul. A relatively low temperature of 11 °C (51 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 5 °C (42 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.
The average daily temperature in December in Istanbul is 11 °C (51 °F). Don't forget a sweater and light or normal jacket, but also pack light clothing in case the temperatures are above average. The weather at this time can be somewhat changeable and a wide range of clothing can become handy.
In December in Istanbul, we can expect 12 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.9 days of the week, or in general - 41 % days.
There is precipitation of 109 mm (4.29 in) in December in Istanbul, which means 4 mm (0.14 in) rainfall per day on average.
There is an average length of sunshine of 4 hours per day in Istanbul in December.
No, there is no wet season in December in Istanbul - you can expect 12 days of rain during the month.
The length of daylight in December in Istanbul is 9 hours.
An average wind scale that can be expected in December in Istanbul is 3.
No, December in Istanbul is not a rainier month than January.
Istanbul has a decreasing trend of the sea temperature during December - from 13 °C (55 °F) in the first days of the month to 10 °C (49 °F) in the last days of the month.
Humidity in December in Istanbul is 79 %.
During December in Istanbul, the day temperatures are decreasing - from 13 °C (55 °F) at the beginning of the month to 10 °C (50 °F) at the end of the month.