Reference Data in Kumamoto 10 indicators covering reference data for Kumamoto. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 565.4 Degree days 2025 up 95.8% 182nd Cooling and heating degree days - Cities and FUAs — Change in cooling 212.93 Degree days 2025 up 434.4% 44th Cooling and heating degree days - Cities and FUAs 1,306 Degree days 2025 up 22.9% 772nd Cooling and heating degree days - Cities and FUAs — Change in heating 89.12 Degree days 2025 up 157.9% 44th Precipitation - Cities and FUAs — Extreme precipitation days 34.11 Days per year 2024 up 19.5% 47th Precipitation - Cities and FUAs — Change in extreme precipitation 5.79 Days per year 2024 up 2,340.4% 139th Wind threats - Cities and FUAs — Exposure to wind threats 0.6832 Percentage of area 2023 — 258th Coastal flooding - Cities and FUAs — Built-up area exposure to 6.62 Percentage of built-up area 2022 up 5.6% 63rd Internet speed - Cities and FUAs — Downloading speed -5.1 Percentage of national value 2025 up 80.7% 1044th Internet speed - Cities and FUAs — Uploading speed -5 Percentage of national value 2025 up 60.3% 825th