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TurkeyThe weather in December in Istanbul
It's cool in December in Istanbul with an average temperature of 13°C. Temperatures this month range from a low of 9°C to a high of 16°C. At night, you can expect temperatures between 5°C and 10°C.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Istanbul, Turkey. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Water temperature
The water temperature at Istanbul is 12°C this month. This is too cold to swim without protective gear.
Precipitation and snowfall
In December, there is an average of 86 mm of precipitation, spread over 11 days. Of the total precipitation, about 0,9 cm falls as snow in December. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in December for Istanbul
Click on any day in December to get detailed info about the usual weather on that day in Istanbul. Check out the historical temperatures and precipitation over the past 10 years on this day.
December weather comparison
| Istanbul | New York | |
|---|---|---|
| Average temperature | 13°C | 9°C |
| Max. temperature | 16°C | 12°C |
| Min. temperature | 5°C | -5°C |
| Total precipitation | 86 mm | 133 mm |
| Rainy days | 11 days | 17 days |
| Total snowfall | 0,9 cm | 9,7 cm |
| Snowy days | 1 day | 3 days |
Start of December
The month of December starts in Istanbul with cool temps, averaging around 14°C during the day and nights around 9°C.
Mid December
By mid-December, daytime temps drop to around 13°C, with nights around 8°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of December
By the end of December, the average daytime temperature in Istanbul is around 12°C, while nighttime temps are about 7°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 3 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of Istanbul for all months and discover the best travel time
Curious about the weather in other parts of Turkey? Check out the climate and weather for spots like Antalya, Bodrum, Belek, or explore other destinations in Turkey.
Temperature charts
These charts show the average temperatures in December in Istanbul, Turkey. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Istanbul
Temperature in December in Istanbul over the years
Precipitation charts
These charts show the average amount of precipitation in December in Istanbul, Turkey. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in December in Istanbul
Total precipitation in December in Istanbul over the years
Daily Snowfall in December in Istanbul
Snowfall in December in Istanbul per year
Daily UV index in December in Istanbul
This chart shows the average daily UV index in December in Istanbul, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in December in Istanbul
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Average weather in Istanbul by month
Click on a month below to see detailed weather info for Istanbul. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.