AN amber weather warning for extreme heat has been issued across for Wales ahead of further soaring temperatures this week.

Soaring temperatures also saw Wales record its hottest day of the year so far on Monday, the Met Office said.

At 6pm on Monday, the United Kingdom’s national weather service tweeted: “Temperatures widely in excess of 30C across much of England with Wales having it’s hottest day of the year so far.”

The mercury reached 28.7C in Cardiff’s Bute Park while in London, temperatures hit 32C in Northolt and 31.8C at Heathrow.

Aboyne in Aberdeenshire, Scotland, basked in 27.5C and it was 24.2C in Armagh, Northern Ireland.

Earlier Met Office data had said temperatures hit 30c in Monmouth today with highs of 29c in Wrexham and Aberystwyth, 28c in Cardiff, 26c in Swansea and 25c in Caernarfon.

Amid today's high temperatures the Met Office has also issued a warning which covers a large part of the UK which will be in place from midnight this coming Sunday, July 17 to 11.59pm, when temperatures are predicted to soar into the 30s.

The forecaster added that it could be extended to Monday next week.

As well as the whole of Wales it is being enforced across England's East Midlands, east of England, London, South East, North East, North West, South West, West Midlands and Yorkshire and Humber.

Gwent's Aneurin Bevan University Health Board has said it is "already seeing people turn up at The Grange University Hospital who are very poorly due to the effects of the hot weather".

READ MORE: Buildings in Wales must adapt for climate change

A statement from the Met Office said: “Population-wide adverse health effects are likely to be experienced, not limited to those most vulnerable to extreme heat, leading to potential serious illness or danger to life.

“Government advice is that 999 services should be used in emergencies only; seek advice from 111 if you need non-emergency health advice.

“Substantial changes in working practices and daily routines (are) likely to be required.

“Significantly more people are likely to visit coastal areas, lakes and rivers, leading to increased risk of water safety incidents.

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“Delays on roads and road closures are possible, along with delays and cancellations to rail and air travel, with potential for significant welfare issues for those who experience even moderate delays.”

The extreme heat weather warning system ranges from yellow to red and indicates how likely and how much of an impact the weather will have on public life.

An amber warning states that temperatures are likely to have a high impact.

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