Posted: Fri 22nd May 2026

Deeside set for 26°C peak as Public Health Wales issues heat advice

News and Info from Deeside, Flintshire, North Wales

Public Health Wales has urged people across Flintshire to take simple precautions over the Bank Holiday weekend as temperatures climb into the mid twenties.

The body’s advice is to take regular breaks in the shade, keep hydrated, wear sunscreen and check in on friends, family and neighbours.

It also warned that open water remains very cold despite the warmer air, with people being encouraged to think before getting in.

BBC Weather is forecasting a high of 23°C in Connah’s Quay on Friday, 21°C on Saturday and 24°C on Sunday, with the warmest local days expected on Monday 25 May and Tuesday 26 May, both at 26°C.

That is well below the 33°C peak the Met Office is forecasting for southern England and the Midlands on Bank Holiday Monday.

Steve Kocher, Met Office Deputy Chief Forecaster, said: “Temperatures will climb through the weekend, especially in the south, where 30°C is likely to be recorded on Saturday and 32°C on Sunday. Temperatures are forecast to peak on Monday when we could see 33°C recorded in southern England and the Midlands.”

He said the May and Spring UK temperature records could be broken over the Bank Holiday weekend, with forecasts surpassing the existing May record of 32.8°C set at Camden Square in 1922.

Heatwave thresholds are likely to be reached in parts of the UK from Sunday, most likely in south-eastern England, before extending into central and western England and parts of Wales as the weekend progresses.

The Royal Life Saving Society UK has issued its own warning about open water, with sea surface temperatures around the south-west of England at 13°C and even colder further north.

Ashley Jones, Head of Water Safety and Education at the Royal Life Saving Society UK, said: “As air temperatures rise, it’s important people don’t underestimate the risks associated with entering open water. Even during a heatwave, water will remain dangerously cold, and cold water shock is a very real danger. Sudden immersion can cause an involuntary gasp, rapid breathing and panic, which can quickly lead to a loss of control in the water – even for strong swimmers.”

He said people should choose lifeguarded locations where possible, keep children within arm’s reach and dress them in brightly coloured swimwear to improve visibility.

He added: “If you see someone in trouble, don’t be tempted to enter the water to rescue them. Instead, call 999, encourage them to float on their back, and throw something that floats to assist them.”

The A55 will be busy across the weekend, with Talacre, and the wider north Wales coast all set to draw crowds.

For those braving a trip up the A55 to the coast, the Met Office has encouraged people to use the beach forecasts on its app to check local conditions before travelling.

Check live fuel prices near you before you set off.

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