February 05, 2026 - 158 views
An increase in flood risk is one of the most significant climate-related threats to health in North Wales, with Public Health Wales urging residents to prepare as extreme weather events become more frequent and severe.
Public health officials warn that flooding can have long-lasting physical, financial and mental health impacts on communities across the region.
According to Natural Resources Wales, around one in seven properties in Wales is already at risk of flooding, with parts of North Wales particularly vulnerable due to coastal exposure, river catchments and surface water flooding. The risk is expected to rise as climate change intensifies rainfall patterns, making early awareness and preparation increasingly important.
Public Health Wales says flooding can cause immediate dangers, including injury and exposure to contaminated water, but the effects often continue long after floodwaters recede. Disruption to homes, businesses, transport links and healthcare access can place additional strain on families, while anxiety and stress are commonly reported among those affected.
Professor Sarah Jones, Consultant in Environmental Health Protection at Public Health Wales, said it is normal for people to feel stressed or anxious if they are affected by flooding, but that ongoing mental health impacts should not be ignored. She said helping people understand their flood risk and take practical steps in advance can reduce harm and improve health outcomes.
Residents across North Wales are being encouraged to check whether their home or business is in a flood-risk area using Natural Resources Wales information, sign up to flood warnings, and prepare emergency plans and flood kits. Officials recommend having essential items ready, including medication, important documents, torches, blankets and supplies for children or babies.
During flooding, people are advised to avoid contact with floodwater wherever possible, as it may contain sewage, chemicals and hidden hazards. Electrical appliances that may have been exposed to floodwater should not be used until checked by a qualified electrician, and petrol or diesel generators should never be used indoors due to the risk of carbon monoxide poisoning.
After flooding, Public Health Wales says people should remain alert to both physical and mental health concerns. Anyone who becomes unwell after contact with floodwater, particularly if they develop symptoms such as diarrhoea, fever or stomach pain, is advised to seek medical attention. Support is also encouraged for emotional wellbeing, with people urged to seek help from family, friends, their GP or specialist services if distress continues.
Public Health Wales says protecting people and communities in North Wales from the health impacts of climate change is a growing priority. As flooding becomes more common across the region, officials stress that preparation, early action and strong community support will be essential in reducing harm and helping people recover more quickly.
