Istanbul, where East meets West
Istanbul, one of the most amazing cities in the world. It's a buzzing city and a mix of European and Asian, like a summer day in Madrid with a touch of Bangkok.
Thinking of visiting Istanbul in January? Expect low temperatures reaching 10°C (50°F) during the day, dropping to 5°C (41°F) at night, and note that quite a bit of rainfall is likely.
January in Istanbul has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Istanbul - and find the best time to visit.
50-year average (1976-2026)
Based on our historical records, temperatures in Istanbul typically stay consistent throughout January, with daily highs averaging around 10°C (50°F). Nights are cold, with lows around 4°C (39°F).
50-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Istanbul spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Istanbul from 1986 through 2025.
Find out more about the weather in Turkey and which places have the best travel conditions in this month. See all of Turkey in January →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Cold weather calls for smart layering in January. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. Expect water temperatures of around 9°C (48°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Water Temp
See the full Istanbul climate overview or explore weather in Turkey.
Where to go in January - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Istanbul, where East meets West
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