Climate Resilience: Drought and Flood Risk in Germany

Executive overview

Key findings

+1.7 °C: rise in Germany's mean air temperature, 1881–2022

Up to EUR 30 billion: ceiling of the federal and Länder reconstruction fund created after the July 2021 floods

About 72%: summer 2026 rainfall as a share of normal (171 of 239 l/m²); the Rhine at Kaub fell below its lowest level known before 2026

7–30%: climate-driven share of water supply investment over the next ten years across four pilot utilities

Buyer relevance

Who the report is for

Water and wastewater utilities

Benchmark their own climate-driven investment against the 7–30% range found across four pilot utilities.

Flood-protection and civil engineering firms

Track the National Flood Protection Programme, with about 110 measures and EUR 127 million a year of federal GAK budget planned to 2029.

Insurers and risk analysts

Use exposure data such as the about 2.1 million residents in coastal flood-risk areas and the 2026 low-water record.

Development lenders and public funders

See how adaptation is financed, from the up to EUR 30 billion reconstruction fund to EIB loans of EUR 500 million for Emscher-Lippe.

Decision scope

Questions answered

How much has Germany's climate changed?

Mean air temperature rose 1.7 °C from 1881 to 2022, and hot days of 30 °C or more rose from about 3 to about 10 a year.

Was 2026 a drought year for water?

Summer 2026 rainfall was about 72% of normal, and the Rhine at Kaub fell below its lowest level known before 2026.

What will adaptation cost water utilities?

A pilot study for BDEW and DVGW puts the climate-driven share of supply investment at 7–30%, which BDEW extrapolates to EUR 3.2–13.5 billion over ten years.

Is there a federal adaptation fund for water?

No standing fund: a joint federal–Länder task for climate adaptation has not been created, and federal money flows mainly through flood protection (EUR 127 million a year in GAK) and nature-based programmes.

Inside the report

Inside the complete report

Executive Snapshot

1. Why This Matters Now in Germany

2. Current Position

3. Key Programmes, Projects and Investment

4. Policy, Regulation and Institutions

5. Risks and Constraints

6. Strategic Implications

7. What to Watch

Source Register

Public preview

What to watch next

1. Why This Matters Now in Germany

Groundwater recovery after the 2026 drought, and whether the National Water Strategy status report due in early 2027 reports climate-driven investment nationally.

3. Key Programmes, Projects and Investment

A representative follow-up to the BDEW/DVGW pilot, which the study itself recommends.

4. Policy, Regulation and Institutions

Whether the environment ministers propose a joint federal–Länder task for climate adaptation, implementing rules under the KRITIS umbrella act, and the strategy status report due in early 2027.

5. Risks and Constraints

Any change to the special fund's eligible investment areas, and Länder funding programmes for municipal water adaptation.

Report page with a table of German climate adaptation programmes, including the flood reconstruction fund, the National Flood Protection Programme and EIB-financed adaptation programmes. — Sample page · page 5 of 11
Adaptation programmes and investments with owner, value, status and timeline.

Included

What you receive

The complete PDF report: 11 pages, 9 sections, 9 tables and a register of 28 sources.

This edition

November 2026, First edition.

Evidence & method

Evidence and method

Climate and hydrological monitoring from UBA, DWD and BfG, federal government reports and parliamentary answers, federal adaptation and water law, river-basin commission programmes, EIB project records, and sector cost studies from BDEW, DVGW and VKU.

Sources

28 sources, listed in the report's source register. Evidence current to 1 November 2026. Principal data periods: temperature and precipitation trends 1881–2022 and 1881–2025; dry years 2018–2020, 2022 and 2026; July 2021 floods; coastal flood-risk reporting at 31 December 2015; adaptation investment estimates for 2025–2034 and 2025–2044. All currency is euros (EUR) unless stated..

Evidence boundaries

This report uses authoritative source material available at the stated research cutoff. It distinguishes published facts, calculated values and analytical interpretation. No independent modelling is performed. Forward-looking analysis reflects published plans, documented trends and stated uncertainties. It does not constitute legal, financial, investment or engineering advice.

Lead analyst

Robert C. Brears

Founder, Our Future Water Intelligence

Robert C. Brears is a water-security specialist and author whose work examines utility governance, infrastructure investment, climate resilience and long-term water-system change for executive and policy audiences.

Decision-focused utility intelligence
Published water-policy author
Evidence-grounded system analysis

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