A fascinating mix of past and present, modern and traditional
Istanbul offers a wonderful introduction to Turkey and a unique holiday destination. The former capital of three powerful empires - Roman, Byzantine and Ottoman - is a fascinating mix of past and present, modern and traditional.
Port average temperature
Istanbul has a temperate climate but is located within a climatic transition zone between oceanic and mediterranean climates.
Summer is generally hot and humid, the temperature between July and August averaging 28°C. Winter is cold, wet and often snowy, averaging 5°C. Spring and autumn are usually mild and wet but are erratic, and the weather can range from chilly to warm, though the nights are chilly.
The humidity of the city is constantly high which makes the air feel much harsher than the actual temperatures. The city being located in the second most humid region of the country, has an average annual humidity of 72%. Average annual precipitation is 678 mm. Istanbul has an average annual of 152 days of precipitation. Summer is the driest season, but precipitation does occur during that season and is irregular and often torrential.
Snowfall which occurs almost annually is common between the months of December and March, with an annual total snow cover of 19 days, but average winter snowfall often varies considerably from year to year, and snow cover usually remains only for a few days after each snowfall.
Fog is prevalent, throughout the year, particularly during the mornings, but it quickly dissipates before noon. However fog cover during the whole day is rare, and it usually occurs in winter, spring and autumn. Thunderstorms, which are not common, usually occur in late spring, summer and early autumn, with an annual total of 22 days, and are particularly rare during the rest of the year and almost unheard of in winter. The city is also quite windy, having an average wind speed of 18 km/h.
The highest recorded temperature was 40.5 °C on 12 July 2000, and the lowest recorded temperature was −16.1 °C on 15 February 1927. Due to its size, topography and maritime influences, Istanbul exhibits a multitude of distinct microclimates.
The temperate figures shown are based on monthly average weather conditions for the selected port. Weather data is not real-time, and sometimes no data is shown for a specific date, month or port in general.