Istanbul weather in December

Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average

Istanbul December weather at a glance

D Challenging 😓

In December, Istanbul averages 9.1°C, with typical highs of 11.8°C and lows of 6.8°C. The historical average is 16 wet days and 82% humidity.

Compared with Seoul in December, it is 10°C warmer than Seoul, with 11 more wet days.

Istanbul December temperature & humidity

Average9.1°CHigh 11.8° / low 6.8°

Humidity82%

Wet days16 days50% of days

Day–night range5°

Istanbul December rain & wet days

Wet days16 daysHistorical monthly average

Share of wet days50%Not a forecast probability

Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.

What to wear in Istanbul in December

A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings. Rain is frequent at roughly 16 days in the month; pack a rain jacket and water-resistant shoes.

DaytimeWarm coat and layered tops · average high 11.8°C
Morning & eveningLong sleeves with a jacket or cardigan · average low 6.8°C
FootwearComfortable walking shoes; quick-dry footwear for rainy days.

Useful extras

Warm jacket or coatKnitwearRain jacketWater-resistant shoesCompact umbrella

Choose a destination packing checklist →

Packing essentials

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Travel compression packing pouches
코멧 여행용 압축 파우치 4종 세트 Travel plug adapter
에너자이저 PD 45W 여행용 멀티 어댑터, 화이트 Compact folding umbrella
솔리앤 초경량 UV차단 3단 자동우산 Inflatable travel neck pillow
마이워니 여행용 에어 목베개

Istanbul December sunrise & sunset times

2026 December · Local time (Europe/Istanbul)

Sunrise on the 15th08:22

Sunset on the 15th17:37

Daylight duration9h 15m

Start, middle and end of the month
Date	Sunrise	Sunset	Daylight
2026-12-01	08:09	17:37	9h 27m
2026-12-15	08:22	17:37	9h 15m
2026-12-31	08:29	17:45	9h 16m

For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.

Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup

Istanbul travel updates

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Best months to visit Istanbul

Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.

J F M A M J J A S O N D

ColdHot

December weather by year

December 20249.2°17 wet days, 82% humidity

December 20258.9°14 wet days, 82% humidity

Daily weather in 2025

Daily high and low temperatures; blue labels show precipitation

113°8°5.2mm

213°7°

314°6°

416°6°

517°10°

619°13°

714°11°42mm

811°8°1.5mm

911°7°

1011°5°

1114°7°1mm

1212°6°

1313°9°1mm

1411°7°

1510°6°

1611°4°

1714°5°

1811°4°

1913°6°

2013°9°

2113°7°1mm

2212°9°2.3mm

2312°8°1.2mm

2413°7°

2512°9°2.4mm

269°4°4.8mm

276°4°2.4mm

287°3°4mm

296°1°

3012°5°9.4mm

314°-1°6.4mm

Frequently asked questions

What is Istanbul weather like in December?

In December, Istanbul averages 9.1°C, with typical highs of 11.8°C and lows of 6.8°C. The historical average is 16 wet days and 82% humidity. Our weather-comfort rating for this month is challenging.

Does it rain a lot in Istanbul in December?

There are about 16 wet days in December. Pack a rain jacket and water-resistant shoes.

What should I wear in Istanbul in December?

A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings. Rain is frequent at roughly 16 days in the month; pack a rain jacket and water-resistant shoes.

What are the best months to visit Istanbul?

Recent weather data rates April, May, June, July among the more comfortable months.

Where can I check Istanbul weather in December in real time?

Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.

What time are sunrise and sunset in Istanbul in December?

On 2026-12-15, calculated sunrise is 08:22 and sunset is 17:37 in local time (Europe/Istanbul). Times vary by date and terrain.

Istanbul weather by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

More India, Middle East & Central Asia destinations in December

Delhi Mumbai Jaipur Goa Kathmandu Pokhara Colombo Maldives Dubai Abu Dhabi Doha Cappadocia Antalya Tashkent Samarkand Almaty Cairo Marrakech All destinations →

Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations