Reference Data in Bremerhaven 11 indicators covering reference data for Bremerhaven. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 14.11 Degree days 2025 down 45.7% 1035th Cooling and heating degree days - Cities and FUAs — Change in cooling -12.65 Degree days 2025 down 1,560.6% 748th Cooling and heating degree days - Cities and FUAs 3,157 Degree days 2025 up 59.2% 52nd Cooling and heating degree days - Cities and FUAs — Change in heating 860.81 Degree days 2025 up 375.2% 6th Precipitation - Cities and FUAs — Extreme precipitation days 3.33 Days per year 2024 up 233.3% 935th Precipitation - Cities and FUAs — Change in extreme precipitation 1.18 Days per year 2024 up 201.9% 627th Dependency ratio - Cities and FUAs 34.5 Percentage of population aged 15-64 years 2025 up 0.6% 344th 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 75.3 Percentage of built-up area 2022 up 0.7% 17th Internet speed - Cities and FUAs — Downloading speed 21.4 Percentage of national value 2025 down 23.0% 164th Internet speed - Cities and FUAs — Uploading speed -19.8 Percentage of national value 2025 down 272.2% 1050th