Check your flood risk on a map (Flood Risk Assessment Wales Map)

Check if you're at risk

The Flood Risk Assessment Wales map shows your risk of flooding from: 

  • rivers

  • the sea

  • surface water and small watercourses

  • reservoirs

The map also provides additional information about your area, such as: 

You can also see all the areas we cover for free flood warnings and alerts.

(Right click on the map button to open it in a new tab)

You can also check your flood risk by postcode

The Flood Risk Assessment Wales map has no official status for planning purposes. You should not use it to inform Flood Consequences Assessment to support planning proposals. Use the Flood Map for Planning / Development Advice Map for development planning. Together, these two maps form the Wales Flood Map. 

Understanding the map

Understanding your flood risk results

Challenging our flood maps 

Find out more about our flood risk mapping information, including guidance about:

Challenging our flood maps

Developing your own hydraulic models

GIS data

If you need to download GIS data, many of the map layers can be downloaded from DataMapWales.


Contains Natural Resources Wales information © Natural Resources Wales and database right. All rights reserved. Some features of this information are based on digital spatial data licensed from the UK Centre for Ecology & Hydrology © UKCEH, the Environment Agency © EA and Getmapping Plc and Bluesky International Limited [2015]. Defra, Met Office and DARD Rivers Agency © Crown copyright. © Cranfield University. © James Hutton Institute. Contains OS data © Crown copyright and database right. Land & Property Services © Crown copyright and database right.

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