Weather in Istanbul for December 2026
In general, the average temperature in Istanbul at the beginning of December is 13.5 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 11.6 °C by the end of December.
The climate of Istanbul in December is notably wet, with an average of 11 rainy days, and a total of 66.7 mm of precipitation.
Is December a good time to visit Istanbul? check out the best time to travel to Istanbul page.
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Istanbul Weather December
Temperatures trend during December in Istanbul
December weather in Istanbul day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Patchy rain possible | 14° /11° | 2.3 mm | 1.8 | |
| 2 Dec. | Patchy rain possible | 13° /11° | 2 mm | 1.8 | |
| 3 Dec. |  Overcast | 14° /12° | 0.2 mm | 1.8 | |
| 4 Dec. | Patchy rain possible | 13° /10° | 2.4 mm | 1.8 | |
| 5 Dec. | Patchy rain possible | 13° /10° | 0.3 mm | 1.8 | |
| 6 Dec. | Patchy rain possible | 14° /11° | 1.5 mm | 1.7 | |
| 7 Dec. |  Moderate rain at times | 14° /10° | 5.5 mm | 1.7 | |
| 8 Dec. |  Light rain | 12° /9° | 4.3 mm | 1.7 | |
| 9 Dec. | Light rain | 13° /10° | 4.5 mm | 1.7 | |
| 10 Dec. | Patchy rain possible | 14° /11° | 1.8 mm | 1.7 | |
| 11 Dec. | Light rain | 14° /11° | 2.7 mm | 1.7 | |
| 12 Dec. | Patchy rain possible | 13° /10° | 1.7 mm | 1.7 | |
| 13 Dec. | Light rain | 12° /9° | 4 mm | 1.7 | |
| 14 Dec. | Patchy rain possible | 12° /9° | 0.7 mm | 1.7 | |
| 15 Dec. | Moderate rain at times | 12° /8° | 7.5 mm | 1.6 | |
| 16 Dec. | Light rain | 10° /7° | 4.1 mm | 1.6 | |
| 17 Dec. | Patchy rain possible | 11° /8° | 2.1 mm | 1.6 | |
| 18 Dec. | Patchy rain possible | 11° /7° | 1.6 mm | 1.6 | |
| 19 Dec. | Patchy rain possible | 11° /8° | 1.1 mm | 1.6 | |
| 20 Dec. |  Sunny | 11° /8° | 0.5 mm | 1.6 | |
| 21 Dec. | Light rain | 11° /8° | 2.7 mm | 1.6 | |
| 22 Dec. | Light rain | 10° /6° | 3.8 mm | 1.6 | |
| 23 Dec. | Light rain shower | 10° /7° | 0.9 mm | 1.6 | |
| 24 Dec. |  Cloudy | 11° /8° | 0.9 mm | 1.6 | |
| 25 Dec. | Patchy rain possible | 13° /9° | 1.4 mm | 1.6 | |
| 26 Dec. | Patchy rain possible | 12° /9° | 1.9 mm | 1.6 | |
| 27 Dec. | Patchy rain possible | 11° /9° | 1.1 mm | 1.7 | |
| 28 Dec. | Overcast | 11° /9° | 0.7 mm | 1.7 | |
| 29 Dec. | Patchy rain possible | 11° /8° | 1 mm | 1.7 | |
| 30 Dec. | Patchy rain possible | 12° /9° | 1.5 mm | 1.7 | |
| 31 Dec. | Sunny | 11° /8° | 0.1 mm | 1.7 | |
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Istanbul weather in December vs November vs January
| November | December | January | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 16°/12° | 12°/9° | 10°/6° |
| Rainfall | 61 mm | 67 mm | 88 mm |
| Snowfall | 0 cm | 0 cm | 2 cm |
| Wind | 22.3 km/h | 21.6 km/h | 23.4 km/h |
| Humidity | 67% | 72% | 72% |
| Rainy days | 8 days | 11 days | 12 days |
| Snow days | 0 days | 0 days | 1 days |
| Dry days | 22 days | 20 days | 18 days |
Planning a trip to Istanbul? Discover the best time to visit
Istanbul in December - FAQ
What are the expected maximum and minimum temperatures in Istanbul during December?
How much rainfall should be expected in Istanbul during December?
Will it snow in Istanbul in December 2026?
What are the typical wind conditions in Istanbul during December?
December rainfall patterns in Istanbul
What to pack to Istanbul in December?
Mild · highs around 12 °C, frequent showers
As you prepare for your trip to Istanbul in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Istanbul, during December, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
Where is Istanbul?Get accurate weather forecasts for Istanbul, located at latitude 41.014 and longitude 28.95. Stay updated with localized weather information tailored for Istanbul.