North Wales is bracing itself for what is expected to be the hottest day of the week — and potentially the year — as an Amber weather warning for high temperatures remains in force across the region.

Temperatures are set to remain high throughout the week, with forecasters warning that the heat could have widespread impacts on health, transport, infrastructure and public services. The Met Office has advised that the conditions could pose a risk to vulnerable people, particularly during the peak hours of sunshine.

Emergency services, local authorities, health organisations and partner agencies are continuing to work together through the North Wales Local Resilience Forum (LRF) to monitor conditions closely and coordinate any response required as the hot weather continues.

Residents and visitors across North Wales are being urged to take extra precautions to stay safe in the heat. Public health advice includes checking on vulnerable friends, relatives and neighbours, especially those who may be older or living alone. People are also being advised to seek shade between 11am and 3pm, when UV levels and temperatures are at their highest, and to wear sunscreen of SPF 30 or above. Authorities recommend covering up with hats, sunglasses and loose-fitting clothing, and drinking plenty of water to avoid dehydration.

With dry and hot conditions increasing the risk of wildfires, people are being urged to take extra care outdoors. Fire services are asking the public not to light fires, avoid barbecues in open countryside and public spaces, and instead “pack a picnic, not a BBQ”. Smokers are being reminded to dispose of cigarettes safely, and everyone is being encouraged to take litter home to help reduce fire risks.

Safety advice has also been issued around open water, with officials warning that rivers, lakes, reservoirs and the sea can still be dangerously cold even during periods of hot weather. People are being urged to avoid jumping into open water to cool off due to the risk of cold-water shock, and instead enter slowly and carefully if swimming. Anyone who gets into difficulty is advised to use the “Float to Live” technique, while the public are warned never to enter the water themselves in an attempt to rescue someone, and to call 999 immediately.

Travel disruption is also possible during prolonged hot weather, and people are being urged to consider whether their journey is necessary. Drivers are advised to carry water, plan regular rest stops and be prepared for delays, while public transport users are encouraged to check services before travelling and allow extra time for journeys.

Camping should only take place in designated and authorised areas, with fire safety guidance strongly emphasised due to the dry conditions.

Public Health Wales has issued detailed guidance on staying safe during extreme heat, while further information is available through North Wales Fire and Rescue Service summer safety advice pages. The Met Office continues to publish up-to-date warnings and advice online.

Officials say the combination of sustained high temperatures and dry ground conditions means North Wales will remain at increased risk over the coming days, with partner agencies continuing to work together through the Local Resilience Forum to manage any impacts.