Almost an entire month's worth of rain is set to fall in less than one day in parts of the UK, bringing new flood warnings and ruining holiday plans for stay-cationers.
Weather forecasters say the worst-hit areas in the next 48 hours will include the south west of England and southern Scotland, where flood alerts have been issued for 30mm of rain to fall - half the average for the whole of July.
And by Friday and Saturday, heavier rain will appear: parts of the country including the north of England, Wales and parts of the East Midlands will see periods of very heavy rain.
"We are expecting intense spells of rainfall on Friday and Saturday, with between 20-40mm and maybe in excess of 60mm in a few localised areas," Met Office spokesman Charlie Powell told AOL Travel.
The average rainfall for the whole of July in the UK 69.6mm.
There are severe weather warnings in place for holiday hotspots including Devon and Cornwall, Somerset and Dorset. Campsites and holiday parks, which have already been affected by the wettest June on record, are bracing themselves for more flooding.
So when will there be some proper sunshine?
Not in the next fortnight, if the forecast is anything to go by.
"There's no great change for the moment," said Charlie Powell. "It's going to be much the same for the next two weeks, with some dry weather and some days with showers," said the spokesman.
But as for the Olympics, there may be a silver lining to the heavy clouds. "There are always uncertainties when forecasting so far ahead, but there are certainly signs of some more settled weather towards the end of July."
The Met Office has already confirmed that the UK had the wettest June in more than a century. Provisional figures show that the double the average amount of rain fell, and it was the second record breaking month of rainfall this year.
"The total UK rainfall was 145.3mm, which is exactly twice as much as you would normally expect," said a Met Office spokesman.
It was also the second dullest June on record, with just 119.2 hours of sunshine, narrowly missing out on the record of 115.4 hours set in 1987. It has also been the coolest June since 1991, with an average temperature of just 12.3C.
Need something to cheer you up? How about some beautiful sun-drenched beaches? Check out our gallery and start plotting your escape.
The ten best beaches in the world
Forget that stay-cation! One month of rain to fall in one day
Located in one of the top ten best scuba diving destinations in the world, Beaches Turks & Caicos Resort Villages & Spa is located in exotic Grace Bay in Providenciales. It's perfect for families as it has a 24-hour nanny service. Stay at: Beaches Resort Turks & Caicos
Seven nights staying at Beaches Turks & Caicos Resort Villages & Spa on a Luxury Included basis costs from £1,769 per adult and £1,045 per child. Return flights and resort transfers are included in the price. For further information or to make a booking call Beaches Resorts on 0800 597 0001. visit beachesresorts.co.uk.
Boracay is seven miles of Pacific Island heaven, where the order of the day is unwind relax. If you do fancy getting out of your hammock (but why would you?), check out the curious Bat Caves. Stay at: Shangri-La's Boracay Resort & Spa, a stunning hotel situated on a hillside overlooking the sea, boasting secluded beach spots and its own 'spa village'. Visit shangri-la.com.
Visitors from the UK to Aruba have grown by more than 60 per cent in the last two years, attracted by the island's pristine white powder sandy beaches and the idyllic turquoise sea, which looks like its been photoshopped! The seven-mile strip of Palm and Eagle Beach includes a little something for everyone, from wide shaded huts and quiet retreats to busy sunbathing and buzzing beach bars. Stay at: Westin Resort Aruba
Thomson (0871 231 3234) offers a 7-night package, including direct flights from London Gatwick, hotel transfers, breakfast, staying at the five-star recently refurbished Westin Resort Aruba from £722pp, based on two people sharing. Visit thomson.co.uk.
Negril is famed for its natural beauty and laid back lifestyle, and nowhere is this more evident than on the world-famous Seven Mile Beach. Here you'll find one of the island's top resorts and the longest continuous stretch of sand in Jamaica, offering visitors a range of activities from snorkelling and cliff jumping to enjoying the reggae beats and cocktails at Rick's Cafe. Stay at: Sandals Negril Beach Resort and Spa
The holiday: Sandals Negril Beach Resort and Spa is a chic hotel situated on Seven Mile Beach, offering unrivalled facilities including a host of watersports, six restaurants and a relaxing spa. Go to sandals.co.uk.
Tulum is a beautiful old Mayan city, with ruins that sit on 39ft tall cliffs along the east coast of the Yucatan Peninsula on the Caribbean Sea. So it's great for a bit of culture as well as kicking back on the beach. Stay at: A four-bedroom villa on the beach courtesy of homeaway.co.uk. Featuring four bedrooms, two with king beds and balcony facing the sea and two with two double beds each, the villa is secure, private and has a beautiful backyard. One bedroom on the main floor opens to the sea. The property also features an open design communal living area and a large seaside terrace. Sleeps 13, from £1,562 per week. Visit homeaway.co.uk.
The Grand Strand - as the Myrtle Beach area is commonly known - stretches for 60 miles along the South Caroline coast.It's a long-established holiday hotspot, bursting with endless shopping opps, golf courses, amusement parks and waterspouts. Stay at: Myrtle Beach Marriott for amazing ocean views. Visit marriott.co.uk.
Seven Mile Beach has also been voted the best in the Caribbean, so it's pretty hard to beat this near-perfect stretch of sand, which is lined with luxury resorts and bars. There are few restrictions on this beach - open grilling us allowed and pets are free to roam - but avoid playing loud music and stripping off naked, because they're about the only things you're not allowed to do! Stay at: Caribbean Club
The five star Caribbean Club is located directly on Seven Mile Beach and offers guests two bedroom and three bedroom all-suite accommodation. All rooms have large balconies that look out onto Seven Mile Beach with sun loungers and a table and chairs. Prices start from US 450 for a two bedroom or US 680 for a 3 bedroom suite based on double occupancy. Subject to 10% government tax and 10% service charge. (May 1 to 15 December 2011). Visit caribclub.com.
Sitting at the southern tip of New Jersey, Cape May is a small seaside holiday resort with a population of 4000 - which swells to 40,000 in the summer months, giving an indication the popularity of its beaches and historical charm. Stay at:Virginia Hotel - a gorgeous collection of upmarket cottages in the historic area of Cape May. Visit capemay.com for more information, and blacktomato.co.uk for great holiday ideas.
Surf fans, listen up! Santa Teresa has world-class waves and is a sea-rider's paradise, busting with surf shops and camps. But you don't have to love surfing to love Santa Teresa. Just soak up the sun on the pristine beach, check out the jungles surrounding it, or visit Costa Rica's nature reserve, Cabo Blanco, and enjoy its live music nights and exciting nightlife. Stay at: The White House - a stunning open-plan house on the beach. An architectural masterpiece with a private infinity pool, the property is next door to Pranamar, the newest and most beautiful yoga resort in Costa Rica and consists of a large four-bedroom beachfront estate home, and two smaller two-bedroom villas. Eight bedrooms, sleeps 17, from £638 per per week. Visit homeaway.co.uk.
Punta Cana offers all the dreamy fun you'd expect on a Caribbean holiday: horse riding on the beach, snorkelling and parasailing. Don't miss a trip to the South American village of Altos de Chavon, and take a speedboat to the beautiful Isla Saona. Stay at: Tortuga Bay - a collection of 15 luxurious beachfront villas decorated by none other than Oscar de la Renta. Visit fivestaralliance.com