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Wales Online
Wales Online
National
Elaine McCahill & Brett Gibbons

Forecasters are predicting a three-week 'heatwave' for the UK

It might feel like the summer is coming to an end but there's talk of a heatwave that will start over the bank holiday weekend.

High pressure is set to gain control bringing warmer, dry conditions to the UK and signalling the end of the wet and windy spell.

The unsettled weather which has brought record levels of rain to some areas will be replaced by temperatures in the late 20s and edging towards 30C as low pressure is banished to the north-east taking the wet and windy conditions with it.

Talia Merriman (L) and Isobelle Waite(R) enjoy the recent sunny weather in Roath Park, Cardiff (WalesOnline/Rob Browne)

There is still a chance of some showers to blight the early part of this week in the run-up to the bank holiday, but there is a hopeful outlook for the weekend, the Mirror reports.

Forecasters are even predicting that conditions could remain warm into September with the mercury hitting the late 20s during a three-week heatwave.

The Met Office's Sarah Kent said: “August 31 to September 14 has signs high pressure will increasingly dominate. Temperatures are likely to be warmer than average.”

The mercury could rise to 25C by the weekend thanks to subtropical air from the Azores with the Met Office finally forecasting dry and sunny conditions for the end of August and into September.

What is a heatwave?

Some experts are even predicting temperatures could hit 30C next month.

Met Office forecaster Greg Dewhurst said: “There's an improvement after wet and windy weather, with plenty of sunny spells throughout [this] week and 25C possible by the bank holiday weekend.

“Low pressure clears and high pressure slowly builds, with a southerly flow possible, with fewer showers in the south and east while the north and west remain less settled.

“High pressure looks like dominating in the last week of August, with mainly settled conditions and the mid-20s possible.”

There are signs that high pressure will dominate until the middle of September. Southern areas are most likely to see the driest and sunniest weather at first, perhaps with some lingering wet and potentially windy conditions affecting the north.

However, longer spells of dry and sunny weather may occasionally develop across all parts. Temperatures are generally likely to be warmer than average.

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