Reference Data in Reykjavík 11 indicators covering reference data for Reykjavík. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 0 Degree days 2025 — 1263rd Cooling and heating degree days - Cities and FUAs — Change in cooling -0.0689 Degree days 2025 unchanged 472nd Cooling and heating degree days - Cities and FUAs 3,918 Degree days 2025 down 13.7% 12th Cooling and heating degree days - Cities and FUAs — Change in heating -604.17 Degree days 2025 down 3,491.3% 1166th Precipitation - Cities and FUAs — Extreme precipitation days 5 Days per year 2024 down 33.7% 737th Precipitation - Cities and FUAs — Change in extreme precipitation -3.48 Days per year 2024 down 272.8% 1282nd Dependency ratio - Cities and FUAs 23 Percentage of population aged 15-64 years 2025 up 14.4% 924th Wind threats - Cities and FUAs — Exposure to wind threats 100 Percentage of area 2023 up 2,634.4% 1st Coastal flooding - Cities and FUAs — Built-up area exposure to 2.34 Percentage of built-up area 2022 down 3.5% 94th Internet speed - Cities and FUAs — Downloading speed 6.9 Percentage of national value 2025 down 56.6% 598th Internet speed - Cities and FUAs — Uploading speed 7.9 Percentage of national value 2025 down 55.9% 548th