Britain could have its hottest day on record today as a band of Saharan air pushes into the country, bringing the first official heatwave in a year and temperatures above 100F (38C) for the second time in a week.
The mercury should hit at least 99F (37C) in London and the South East today, with a chance that last Friday’s 100F (37.8C) recorded at London Heathrow Airport – the UK’s third-hottest day ever – could be broken.
Temperatures could even climb above the record of 101.7F (38.7C), which was set last July. But unlike last Friday, when cloud and drizzle followed, this time the heatwave is here to stay until at least Tuesday.
Further north and west, it is still due to reach 82F (28C) today, with fine weather expected into next week and continuing through the first half of August, albeit with a risk of downpours and thunderstorms.
With daily highs in the South poised to remain above 30C (86F) until Tuesday, forecasters say it is the first official heatwave – lasting at least three days – since late July 2019, when the all-time UK record temperature was set.
Sunseekers head to Brighton beach in East Sussex yesterday as temperatures rise across the UK and the heatwave begins
Temperatures are expected to hit 97F (36C) to 100F (38C) in the South East today, with minimum highs of 72F (22C) tonight
Met Office meteorologist Grahame Madge said: ‘Whether we will see the hottest day of the year is on a knife edge. However, this will be a longer spell of warm weather compared with what we had last week.
‘Meteorologically, it will be a heatwave. There is a strong signal of a thundery breakdown at some stage next week but that’s not likely before early on Tuesday.’
Mr Madge said that while the warmest weather is expected in the South East today and tomorrow, the hottest areas over the latter half of the weekend could be Hampshire, Dorset and Somerset.
Temperatures are expected to fall back towards the mid-70Fs (mid-20Cs) in the North and Wales.
The very hot conditions, which have been caused by Atlantic air warming up over France before being drawn north, have led to health warnings.
Britain has never recorded two days with temperatures over 99F (37C) in the same year since records began.
Parts of the South of England are even expected to be hotter than the Caribbean, with highs of 91F (33C) in Jamaica and 84F (29C) Barbados.
The high temperatures will make parts of the UK hotter than Barbados and Jamaica, with the Met Office issuing a level-three heat health alert which warns Britons to look out for the elderly, vulnerable and young children.
There are also fears tourists flocking to coastal hotspots will ignore social distancing rules and cram on to packed seafronts in scenes similar to last weekend – risking further spread of the dreaded coronavirus.
The Met Office warned people in South East England to close curtains on rooms facing the sun to keep indoor spaces cooler, drink plenty of fluids, avoid excess alcohol, dress appropriately and ‘slow down when it is hot’.
People make the most of warm weather at Camber in East Sussex yesterday as the South East experiences hot temperatures
A groups of friends play volleyball on the sand at Tynemouth’s Longsands beach in the North East yesterday afternoon
Crowds gather at Bournemouth beach in Dorset yesterday as families take to the coast to enjoy the hot weather
It comes as the staycation boom continues, with Britons flocking to seasides across the UK and Halfords reporting a sales surge in camping equipment since lockdown was lifted on July 4 – with gas stoves up 300 per cent, cool boxes up 180 per cent, airbeds up 130 per cent, roofboxes up 165 per cent and camping chairs up 120 per cent.
The mercury hit 86.2F (30.1C) at Wisley in Surrey yesterday – the UK high for the day – before London has temperatures of 100F (38C) today, 93F (34C) tomorrow and 90F (32C) on Sunday, Monday and Tuesday.
But the RNLI has warned of ‘plenty of potential dangers’ amid an expected rush to the beaches during the UK’s staycation surge which has been boosted by foreign holidays being in doubt due to coronavirus restrictions.
The heat is from southerly winds moving from Europe and parts of northern Africa and is expected to stay around well into next week, although it may then be replaced by thunderstorms by next Wednesday.
The heatwave threshold is three days over 82F (28C) in London and 77F (25C) in most other parts of the UK.
Today will peak in the 90-100Fs (high-30Cs) around East Anglia, Kent and London, while up to 84F (29C) is expected in Manchester and Liverpool. The heat could generate showers but these will be light and fleeting.
A Met Office spokesman said: ‘It is the result of southerly winds moving from Europe and parts of northern Africa, which will push the temperatures up.
‘It’s pretty unusual to get two successive events like this within a week of each other with such high temperatures.’
However, there was concern about the impact of the warm spell on vulnerable groups.
A level three heat health alert came into force from yesterday covering all of Southern England, London and East Anglia, valid until Tuesday.
The alert, issued by the Met Office in conjunction with Public Health England, advises precautions for elderly people, young children and babies and those with underlying health conditions.
It states: ‘Close curtains on rooms that face the sun to keep indoor spaces cooler and remember it may be cooler outdoors than indoors. Drink plenty of fluids and avoid excess alcohol, dress appropriately for the weather and slow down when it is hot.’
In its longer-range forecast, the Met Office predicts a ‘good deal of fine and dry weather’ across the UK until mid-August – albeit with a risk of heavy showers and thunderstorms.
For the end of August and beginning of September, fine and dry weather is likely to continue in the South, where there could be some further ‘very warm spells’.
In Wales and northern England, there are likely to be ‘periods of dry and settled weather interspersed with occasional bouts of wetter and windy weather’.
The heatwave comes after some areas of northern England and Wales had very wet weather earlier this week bringing flooding.
On Tuesday, 54.5mm (2.15in) was recorded at Hazelrigg in Lancahire. It led to flooding in Lancaster on Wednesday, where 50 people had to be evacuated from their homes and firefighters had to pump water from roads and farmland.
In Pentre, a village in Rhondda, South Wales, homes were also flooded on Wednesday for the fourth time this year after heavy rain.
Local councils have made a plea for extra government funding to help improve safety at beaches to reduce the risk of coronavirus spreading among visitors.
The Local Government Association said the ‘rush to the sun’ following easing of lockdown restrictions in recent weeks has become a serious challenge for councils responsible for beach safety.
It wants extra funding for ‘beach patrols, additional toilets and prominent signage’.
Council bosses are also urging people to ‘think carefully before travelling to beaches and to get in the habit of checking they are open and safe to visit’.
Earlier in the summer, Government ministers warned beaches may have to close if crowds of visitors were unable to follow rules on social distancing.
Richard Kemp, vice chairman of the LGA’s Community Wellbeing Board, said: ‘People will understandably want to enjoy the sunshine.
‘However, when large numbers of people head to the coast and tourist spots there is inevitably a risk of overcrowding and an increase in the rate at which COVID-19 could be transmitted.
‘Lives depend on all of us taking personal responsibility for our actions to avoid a resurgence of this deadly virus that puts further lives at risk.’
The Met Office has issued a level three heat health alert which warns Britons to look out for the elderly and young children
It comes after a YouGov poll found 28 per cent of Britons plan to take a holiday in the UK this year – the equivalent of 19million people – while only 9 per cent will go abroad and a further 49 per cent do not intend on holidaying.
And the warm weather will concern local authorities in areas such as Cornwall, Devon, Dorset and Sussex which can expect another huge influx of holidaymakers as people in the UK shun foreign trips to go on staycations.
Beleaguered Cornish residents reported over the weekend how the popular county had turned into ‘Benidorm on steroids’ as floods of visitors left them too scared to leave their homes.
Meanwhile Thanet District Council in Kent begged people to avoid four of the area’s beaches – including the popular Margate’s Main Sands – due to the number of visitors.
And a drunken fight broke out on the seafront in Brighton last Saturday night as two women went toe-to-toe and others cheered and ignored social distancing.
Over the weekend, street marshals were deployed in Cornwall as tourists poured down narrow streets and flouted social-distancing rules – despite clear warning signs in place.
Cornwall Council slammed the ‘ignorant’ visitors who descended on beauty spots without their face masks, as Britons elsewhere appeared to ignore social distancing rules while gathering at bars.