Reference Data in Porto 11 indicators covering reference data for Porto. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 137.03 Degree days 2025 down 7.8% 588th Cooling and heating degree days - Cities and FUAs — Change in cooling -13.42 Degree days 2025 down 655.9% 763rd Cooling and heating degree days - Cities and FUAs 747.72 Degree days 2025 down 5.8% 983rd Cooling and heating degree days - Cities and FUAs — Change in heating -173.03 Degree days 2025 down 35.9% 414th Precipitation - Cities and FUAs — Extreme precipitation days 14.73 Days per year 2024 down 43.9% 302nd Precipitation - Cities and FUAs — Change in extreme precipitation -2.06 Days per year 2024 down 121.7% 1223rd Dependency ratio - Cities and FUAs 37.5 Percentage of population aged 15-64 years 2024 up 31.6% 246th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 down 100.0% 273rd Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area 2022 — 277th Internet speed - Cities and FUAs — Downloading speed 13.4 Percentage of national value 2025 down 34.0% 373rd Internet speed - Cities and FUAs — Uploading speed 13.8 Percentage of national value 2025 up 20.0% 404th