Istanbul Weather in December: Climate, Temperature & Travel Tips
Avg 9.1°C · 84mm rain — December is winter in Istanbul.
- Avg high
- 11.5 °C
- Avg low
- 6.8 °C
- Avg
- 9.1 °C
- Precipitation
- 84 mm
Source: Open-Meteo Archive 2014–2023 · 10-year climate normals
Climate Overview
December in Istanbul, Turkey brings winter conditions: average temperature 9.1°C, average high 11.5°C, average low 6.8°C. Monthly rainfall averages 84mm, making it a moderate-rainfall time of year.
Conditions are pleasant for most travel activities.
What to Pack
- Light jacket or fleece, long-sleeve shirts
- Closed shoes; layers for changing conditions
- A light rain jacket as backup
Best Things to Do
- Walking tours and city exploration
- Parks and outdoor cafes
- Seasonal food and night markets (where applicable)
Pros and Cons of Visiting in December
Pros:
- A unique seasonal character that locals enjoy
Cons:
- No major weather drawbacks for typical activities
Climate source: Open-Meteo Archive (2014–2023).
Colour = avg temperature · blue = cool · orange = warm
- 1 August 25.3°C
- 2 July 24.7°C
- 3 June 21.8°C
- 1 January 6.7°C
- 2 February 7.5°C
- 3 March 8.7°C
FAQ
01 What is the average temperature in Istanbul in December? +
The average is 9.1°C, with a high of 12°C and a low of 7°C.
02 What is Istanbul like to visit in December? +
It is winter in Istanbul, which is cool — bring warm clothes.
03 Does it rain often in Istanbul during December? +
Average rainfall is 84mm, which is moderate.
04 What should I pack for Istanbul in December? +
Light jacket or fleece, long-sleeve shirts; Closed shoes; layers for changing conditions.
05 Is December a peak travel season for Istanbul? +
It is closer to off-season, with more reasonable prices and fewer crowds.
06 Where does this climate data come from? +
Monthly averages computed from Open-Meteo Archive 2014–2023 daily observations.
- Sources
- Open-Meteo Archive 2014-2023
- Updated
- 2026-04-17