Reference Data in Izmir 11 indicators covering reference data for Izmir. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 529.52 Degree days 2025 down 10.8% 195th Cooling and heating degree days - Cities and FUAs — Change in cooling 29.94 Degree days 2025 down 68.1% 338th Cooling and heating degree days - Cities and FUAs 735.29 Degree days 2025 down 35.2% 987th Cooling and heating degree days - Cities and FUAs — Change in heating -454.81 Degree days 2025 down 717.3% 992nd Precipitation - Cities and FUAs — Extreme precipitation days 10.36 Days per year 2024 up 2.1% 457th Precipitation - Cities and FUAs — Change in extreme precipitation 1.13 Days per year 2024 up 23.5% 636th Dependency ratio - Cities and FUAs 18.3 Percentage of population aged 15-64 years 2024 up 45.2% 1054th Wind threats - Cities and FUAs — Exposure to wind threats 33.26 Percentage of area 2023 — 149th Coastal flooding - Cities and FUAs — Built-up area exposure to 3.63 Percentage of built-up area 2022 up 6.3% 82nd Internet speed - Cities and FUAs — Downloading speed 36.2 Percentage of national value 2025 up 204.2% 49th Internet speed - Cities and FUAs — Uploading speed 52 Percentage of national value 2025 up 719.0% 64th