Reference Data in Nagasaki 15 indicators covering reference data for Nagasaki. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 499.83 Degree days 2025 up 84.2% 208th Cooling and heating degree days - Cities and FUAs — Change in cooling 147.01 Degree days 2025 up 280.3% 104th Cooling and heating degree days - Cities and FUAs 680.04 Degree days 2025 down 9.6% 999th Cooling and heating degree days - Cities and FUAs — Change in heating -154.37 Degree days 2025 down 87.9% 371st Cooling and heating degree days - Cities and FUAs — Change in heating -41.77 % change on previous year 2025 up 65.9% 718th Cooling and heating degree days - Cities and FUAs, annual growth rate -6.27 % change on previous year 2025 down 10.5% 617th Cooling and heating degree days - Cities and FUAs — Change in cooling -35.79 % change on previous year 2025 down 39.8% 213th Cooling and heating degree days - Cities and FUAs — Cooling degree -14.08 % change on previous year 2025 down 144.0% 264th Precipitation - Cities and FUAs — Extreme precipitation days 35.29 Days per year 2024 up 5.1% 45th Precipitation - Cities and FUAs — Change in extreme precipitation 2.74 Days per year 2024 up 167.9% 354th Dependency ratio - Cities and FUAs 57.4 Percentage of population aged 15-64 years 2020 up 48.7% 16th Wind threats - Cities and FUAs — Exposure to wind threats 100 Percentage of area 2023 up 54.6% 1st Coastal flooding - Cities and FUAs — Built-up area exposure to 0.4657 Percentage of built-up area 2022 down 6.5% 131st Internet speed - Cities and FUAs — Downloading speed -13.4 Percentage of national value 2025 up 64.7% 1184th Internet speed - Cities and FUAs — Uploading speed -22.6 Percentage of national value 2025 down 18.9% 1073rd