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Istanbul in December: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Istanbul in December will be like? Take a look at our weather guide for Istanbul, based on historical data.
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December

Weather in Istanbul in December 2024

OK Weather
Chill
☁️
Cloudy
Istanbul in December usually sees fair weather conditions, with an average daily high temperature of +52°F and roughly 7 sunny days. However, you should prepare for about 8 rainy days with an average precipitation of 80 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+52°F
Avg. max. temperature
+28°F
Min.
+75°F
Max.
80 mm
Total precipitation
75%
Avg. humidity
3 m/s
Avg. wind
7 ☀️
Sunny Days
16 ⛅️
Cloudy
8 🌦
Rainy
Our opinion: Istanbul has OK weather in December.

Average temperature in Istanbul in December

Here are the expected maximum, average and minimum temperatures in Istanbul for December based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in December is +57°F with a maximum of +68°F and a minimum of +39°F.

The average maximum temperature goes down 12% by the end of the month, compared with the beginning of the month, from +59°F to +55°F.

Is Istanbul warm or cold in December?

Istanbul is typically chill in December.

Maximum temperatures go down compared to the previous month from +57°F to +52°F. The minimum temperature also goes down from +50°F to +45°F.

Pack a jumper and a jacket as there will be cooler temperatures.

Take a look at how December is compared to other months in Istanbul:

Climate in Istanbul in December

Istanbul weather looks like this, on average, in December and the surrounding months.
NovemberDecemberJanuary
Avg. temperature
+57°F+52°F+46°F
Min. temperature
+34°F+28°F+18°F
Max. temperature
+77°F+75°F+66°F
Rainfall
65 mm80 mm67 mm
Wind
3 m/s3 m/s4 m/s
Humidity
74%75%76%
Air pressure
1018 HPa1018 HPa1018 HPa
Sunny days
1077
Cloudy days
141617
Rainy days
686
Snowy days
001

December typically has worse weather conditions compared to November. It’s getting colder in December. From +57°F in the day, the average maximum temperature lowers to +52°F. Prepare for more rain. Average rainfall goes from 65 mm to 80 mm. Humidity rises from 74% to 75%. The average wind speed doesn’t change much during December, staying around 3 m/s. The days becoming less sunny, going from 10 sunny days in November to 7 in December.

January brings much the same weather, it remains ok.

Wind

Wind speed in Istanbul in December based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Istanbul is gradually decreasing during December, going from 5 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during December in Istanbul based on historical data.
Last Year
Historical Data
Typically, there is a 35% chance of rain on an average day in December, with total rainfall of approximately 47 mm. The maximum amount of rainfall per day is around 16 mm, which is considered light rain. December is a pretty wet month with over 11 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
December is one of the rainiest months in Istanbul, here is a comparison with other months, total mm:
Istanbul wettest month is December, where a typical day has a 26% chance of precipitation and 80 mm of rainfall per day. August, on the other hand, is the driest month with a mere 6% chance of precipitation and 14 mm of rainfall per day.

How was the weather last December in Istanbul?

This is the weather in Istanbul in December 2023:
1 December
☁️
+60°F
2 December
☁️
+55°F
3 December
☁️
+53°F
4 December
☁️
+53°F
5 December
☁️
+55°F
6 December
☁️
+55°F
7 December
☁️
+56°F
8 December
☁️
+60°F
9 December
☀️
+63°F
10 December
☁️
+63°F
11 December
☁️
+68°F
12 December
☁️
+61°F
13 December
🌧️
+59°F
14 December
☁️
+52°F
15 December
🌧️
+62°F
16 December
☀️
+67°F
17 December
☀️
+66°F
18 December
☁️
+59°F
19 December
☁️
+46°F
20 December
☁️
+49°F
21 December
☁️
+52°F
22 December
☀️
+55°F
23 December
☀️
+53°F
24 December
☀️
+54°F
25 December
🌧️
+55°F
26 December
☀️
+54°F
27 December
☀️
+56°F
28 December
☁️
+54°F
29 December
☀️
+54°F
30 December
🌫️
+54°F
31 December
🌫️
+56°F
In December 2023 Istanbul had 9 sunny days, 17 cloudy days, and 3 rainy days. The average maximum temperature was +57°F, with an absolute maximum of +68°F and a minimum of +46°F. The average humidity was 78%, with a maximum of 100% and a minimum of 49%. The average wind speed was 4 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in December?

Climate Change Over the Years

This is how Istanbul climate has changed over the last 43 years.

The climate in Istanbul in December has not changed that much over the last 43 years.

The average temperature was the lowest in 1991 (+46°F) and the highest in 2022 (+59°F). The driest year was 2015 with only 5 mm of rainfall, and the wettest year was 2001 with 259 mm.

FAQ

Frequently asked questions about the weather in Istanbul in December:

Is December a good time to visit Istanbul?

It’s always a good time to visit Istanbul, but the weather is changeable in December, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Istanbul in December?

Not really, December is not the best time to sunbathe, unless you visit a local solarium.

Is Istanbul rainy in December?

Istanbul is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Istanbul in December?

Usually, it’s not very sunny in Istanbul in December, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Turkey

Check out the weather for other cities in Turkey.

Monthly weather in Istanbul

Source of the data

For this page, we’ve looked at the typical weather in Istanbul, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.