Monthly climate ·Istanbul weather in January
In January, Istanbul averages around 9° by day and 4° at night, with 13 rain days a month — about a 43% chance of rain on any given day.
By day
9°C
At night
4°C
Daily rain chance
43%
Rain days a month
13
Monthly precipitation
106 mm
Sunshine hours a day
5.5
Average of 2016–2025 (Open-Meteo archive). Typical climate — not a forecast.
Is January a good time to visit Istanbul?
January is a rainy month in Istanbul — 13 rain days on average. Fine if you do not mind the rain, and usually a cheaper season too.
Every month in Istanbul
Frequently asked questions
- What is the weather in Istanbul in January?
- In January, temperatures in Istanbul average between 4° at night and 9° by day, with 13 rain days a month (average of 2016–2025).
- How much rain falls in Istanbul in January?
- Istanbul gets about 106 mm of rain in January on average, spread over roughly 13 rain days.
- Is January a good time to visit Istanbul?
- January is a rainy month in Istanbul — 13 rain days on average. Fine if you do not mind the rain, and usually a cheaper season too.