It may still be April, but Britain looks set to get an early dose of summer sun. Temperatures are due to rise throughout today peaking at 22C (72F) tomorrow. Not only will that be the warmest temperature recorded this year, but it will also surpass the average daytime temperature for August. That is 11C warmer than the UK April average and would beat the current 2015 high of 20.7C (69F) on Easter Sunday in Aboyne, Aberdeenshire. The 22C (72F) predicted in the South East on Friday is also better than the 18C forecast in Marbella, 16C in Rhodes, 10C in Istanbul and 16C in Malta. Getting wet: Lizzie Davis, three, and her mother Emma bodyboard at  Fistral Beach in Newquay, Cornwall, yesterday . Buried alive: Kyle Morris, 11, lies in sand at the beach in Weston-super-Mare, Somerset, yesterday as high temperatures continue . Working together: A coordinated effort was made by these three children to bury 11-year-old Kyle in sand at the beach in Weston-super-Mare . Here you go: Mason Griffiths, nine, feeds the swans yesterday in the River Thames by Eton Bridge in Windsor, Berkshire . On the grass: Laura Wallis, Sarah Clarke, Sinead Thompson, Jennifer Owen and Alex Long, all 18, enjoy the warmth outside Hereford Cathedral . Hand in hand: Brothers Michael (left), three, and Patrick Wallace on Dollymount Strand in Dublin during the warm April weather yesterday . Splashing about: Visitors and workers enjoy the lunchtime sunshine near HMS Belfast and Tower Bridge in central London yesterday . Seaside fun: Children ride donkeys on the beach at Weston-super-Mare as the warm weather continues across Britain . Bridge over the River Wye: People enjoy the sunshine outside on the 1898 iron suspension crossing Victoria Bridge in Hereford . Sandcastles galore: People relax on the beach in Broadstairs, Kent, as fine weather continues across the UK . Meanwhile the Department for Environment, Food & Rural Affairs has issued a warning to asthma sufferers of 'very high' air pollution tomorrow. Its warning for the far South East of England also states that adults and children with lung problems should avoid strenuous physical activity. Experts said locally-emitted pollution that would normally blow away will become trapped to the ground for longer, because there will be little wind. A Defra spokesman stressed the high pollution is not a direct result of the warm weather, but a mixture of factors including the arrival of Saharan dust. British Lung Foundation chief executive Penny Woods said it could 'put people living with respiratory conditions at risk of worsening symptoms'. Retailers have been stocking up on picnic food, with customers expected to head to beaches and parks for the last days of the school holidays. Three-day forecast: The weather will stay mostly dry and sunny  for the next few days, although some showers are expected on Saturday . Warm week: This Netweather graphic shows how the temperatures in Britain will compare with other destinations across Europe tomorrow . Air quality: Defra has warned of high (in red) and very high (in purple) pollution  later this week. Today (left) and tomorrow (right) are pictured . On two wheels: Ellis (right), nine, and Katy Hubbard (left), seven, ride their scooters along the Long Walk in the direction of Windsor Castle . In the water: Children enjoying the holidays yesterday try their hand at surfing with Tynemouth Longsands Surf School near Newcastle . Running: A jogger makes her way past the Peace Pagoda in Battersea Park, south-west London, as the warm weather continues across the UK . Pretty setting: Visitors enjoy the warm and sunny weather at the Birmingham Botanical Gardens in the West Midlands yesterday . Lunchtime outside: Visitors and workers enjoy the sunshine near HMS Belfast and Tower Bridge in central London yesterday . Falling off: This girl's hair flew everywhere when she fell off her board while trying out surfing with the Longsands Surf School at Tynemouth . Busy: The Serpentine Bar & Kitchen was full outside yesterday as people enjoyed the sun at Hyde Park in central London . Morrisons said it expects barbecue essentials to fly off the shelves, and Waitrose sold a week’s worth of barbecue fuel on Easter Monday. But anyone hoping to head further afield could find themselves stranded, as a French air traffic control strike has left airports in disarray. Forecasters expect the UK to see high temperatures until the weekend - while yesterday’s national maximum was 19.3C (67F) in Usk, South Wales. Clear skies, lengthening days and a warm mass of air from southern Europe will create glorious weather for the country as the sun shines through. The weather will stay mostly dry and sunny across the UK for the next few days, although some showers are expected from late tomorrow. Among the best coastal destinations for warm weather tomorrow will be Hunstanton in Norfolk, Whitstable in Kent and Prestatyn in North Wales. Prepared: Trainee lifeguards practise yesterday in Broadstairs, Kent, as pleasant weather continued on the south coast . Capturing the colours: Melanie Baxter, 15, photographs flowers during sunny weather at Birmingham Botanical Gardens yesterday . Sparkling water: Boats are pictured moored off Broadstairs beach in Kent yesterday as temperatures remained warm across the country . Magpie in the making? William, two, from Gosforth, Newcastle, enjoys a kickabout with a beach ball on Longsands beach at Tynemouth . Lake District beauty: A morning cruise on Lake Windermere on the passenger steamer Tern with the Lagdale Pikes in the background . Surrounded by flowers: Will Middup (left), five, and Matthew and Thelma Wilson (right), both 82, yesterday at Birmingham Botanical Gardens . Searching: A man made the most of the Easter holiday visitors and combed the beach with his metal detector at Whitley Bay in Tyne and Wear . Incoming: Giant jellyfish have arrived at the seaside in Britain - with this one spotted during low tide at Preston Sands in Paignton, Devon . Good day for boating: Blue skies and waters were observed around Falmouth in Cornwall, with the wind made for perfect sailing conditions . Peak District scene: Amelia Bradley, five, runs through daffodils with her three-year-old brother Harry at Chatsworth House yesterday . Al fresco: Families picnic at Royal Victoria Park in Bath, Somerset, as the warm weather continues across the UK . Spring time: Women and children picnic at Royal Victoria Park in Bath as the warm weather continues across Britain yesterday . Air pollution levels tomorrow are forecast to be ‘very high’ in the far South East of England - potentially putting asthma sufferers at risk. The guidance from the Department for Environment, Food & Rural Affairs affects people on the Sussex coast in towns including Hastings, Bexhill and Eastbourne. ‘Adults and children with lung problems, adults with heart problems, and older people, should avoid strenuous physical activity,' it says. Meanwhile people with asthma ‘may find they need to use their reliever inhaler more often’. Defra said that conditions will see 'locally-emitted pollution become trapped to the ground, because there's not so much wind'. A spokesman told MailOnline: 'Basically we've seen local pollution and it's a mixture of that with some air coming in from the continent and a little bit of Saharan dust. It will just be on Friday that we see "very high" measurements, and it's due to clear up by 6am on Saturday.' Met Office meteorologist Dan Williams said: ‘We are looking at high temperatures for most days until the weekend.’ He added: ‘Friday is looking like the warmest day of the week - we may well see 21C (70F) or higher in London.’ England, Wales, Scotland and Northern Ireland each had their warmest days of 2015 over Easter, but those records could all be broken by tomorrow. The average UK temperature for April is 11.4C (52F) and for England is 12.4C (54F), according to the Met Office. Meanwhile safety charities warned people not to be tempted to swim in reservoirs or from unmonitored beaches during the warm weather. Some 400 people drown in the UK each year, the equivalent of one every 20 hours. In times of good weather drownings peak, charities said. And Morrisons said it expects barbecue essentials to fly off the shelves this weekend as the UK basks in some early spring sunshine. The Bradford-based retailer is predicting it will make and sell 1.4million fresh British beef burgers - a 30 per cent rise on last week. It also said sales of sausages made at its own manufacturing sites are expected to exceed 1million, while 1.6million burger buns will be baked. Morrisons added that this week it will sell half a million pegs and 62 miles of washing lines - enough to stretch from London to Cambridge. Waitrose said its rosé wine sales are up 24 per cent, strawberries are up 32 per cent, and a week’s worth of barbecue fuel was sold on Easter Monday. A spokesman added: ‘Shoppers are making the most of the change in temperature and stocking up on summery food and drinks.’ Reflection: A spring morning by Anish Kapoor's  Temenos sculpture, on the south bank of the Tees in Middlesbrough . Beautiful morning: A view of Derwentwater in the Lake District yesterday, taken at 7.30am, as Britain enjoys a warm week of weather . Misty morning: A cyclist rides through fog at Richmond Park in south-west London yesterday as the capital saw temperatures in the high teens . Early risers: A horse rider in Upper Lambourn, Berkshire (left), and a sunrise in Grange-over-Sands, Cumbria (right), yesterday morning . On the lookout: Deer stare over a foggy field at sunrise in Richmond Park, south-west London, as another warm day was forecast . Clear sky: A satellite view from MetDesk at 9.30am yesterday (left), and tomorrow afternoon's temperatures seen in a Netweather map (right) Surface pressure: The Met Office said high pressure this week will bring dry weather - with temperatures staying reaching the high teens . Let the sneezing begin: The birch pollen risk is expected to rise to high in southern and central regions of the UK (denoted by 'H') by tomorrow . Monthly means: The average UK temperature for April is 11.4C (52F) and for England is 12.4C (54F), according to the Met Office . Stunning sunset: The iconic Spinnaker Tower is silhouetted against the sun at the end of a warm and sunny day in Portsmouth yesterday . In addition, Sainsbury's said it expects to sell an additional 500,000 sandwiches and 500,000 individual fresh burgers to normal this week. A spokesman for the supermarket added that sales of muffin tins have risen by a whopping 350 per cent, while dinnerware is up by 35 per cent. M&S said sales of its Grill range including burgers and ‘Posh Dogs’ are expected to rise by 30 per cent as people plan barbecues in the warm weather. A spokesman added: ‘It is expected that our prepared salads sales will increase by 35 per cent as people are looking for lighter options.’ Finally, Aldi said it expects sales of its premium Aberdeen Angus beef burgers to increase by 25 per cent as customers fire up their barbecues.
22C forecast for South East is 11C warmer than average - and would beat 2015 high of 20.7C in Aberdeenshire.
Among the best coastal areas for warm weather tomorrow will be Hunstanton in Norfolk and Whitstable in Kent.
Weather will stay mostly dry and sunny for next few days, but some showers are expected from late tomorrow.
Defra warns asthma sufferers and people with lung problems of 'very high' air pollution in South East tomorrow.