The Algarve has seen the supermarkets open along the coastline, resulting in a 26.5 per cent fall in the Portuguese destination's prices to £41.04 for 20 typical food staples, including a loaf of bread, wine, milk, eggs and toilet roll.
A Post Office Travel Money Self-Catering on a Shoestring Report found that self-catering costs have fallen heavily across much of Europe, as one in five Brits plan to make a self-catering trip abroad this summer.
The survey found that a third of the UK holidaymakers chose a self-catering holiday specifically to keep meal costs to a minimum, while 54 per cent said they shopped in local mini-marts rather than larger supermarkets.
A Post Office spokesman told the Daily Mail: "Echoing UK trends, cost-cutting Aldi and Lidl supermarkets have sprung up and this has resulted in a fall in prices."
With the added strength of the pound against the euro, budget stores Aldi and Lidl have pushed food and drink prices down 26 per cent in the Algarve.
The Post Office reveals that Spain's Costa Blanca is even cheaper and has overtaken the Algarve to emerge as this year's 'best buy' tip for self-caterers. Prices have fallen nearly 38 per cent to £36.69 for 20 tourist items.
The Western Med is looking cheaper than the Eastern Med, with resort areas in Spain and Portugal lower than those in Greek destinations, such as Corfu and Crete. Local prices on the two islands have offset the benefit of the stronger pound.
As a result, although prices are down in supermarkets by 5.4 per cent in Corfu (£63.23) and 10 per cent in Crete (£64.64), the negative impact will be felt more sharply in mini-markets. The shopping in Turkey is far more expensive than in Spain or Portugal at £68.67 for self-caterers, while Cyprus supermarkets remain the most expensive at £68.97.
Cheap July holidays
Aldi and Lidl cutting the cost of holidays abroad
Budapest is one of Europe's cheapest city break destinations and looks its best in July. When it gets too hot you can take a dip in the Széchenyi baths, and at night watch the city's parks come alive with summer cheeriness. Momondo.co.uk searches for flights and hotels to Budapest, with return fares from £95 and four-star hotel accommodation from just £19 a night.
With sky high prices on neighbouring island Ibiza during the summer months, those looking for the turquoise blue waters and spectacular scenery of the Balearic Islands in July should check out Menorca. Quieter and relatively undiscovered compared to Ibiza, Menorca offers tranquil beaches unspoiled by tourism, plenty of nature and a slow pace. easyJet offers one-way flights to Menorca from £67 in July.
Turkey is one of the most affordable destinations for summer sun and if you're after a lively atmosphere, fabulous beaches and stunning scenery, look no further than Marmaris. As the resort is cheaper than many other Mediterranean destinations, it's the ideal place to experience luxury. D–Resort Grand Azur is the only non-all-inclusive resort in Marmaris, offering a secluded beach, stylish decor and exotic gardens. Thomas Cook offers seven nights from £665 per person based on two adults sharing on a half-board basis, flying from Gatwick Airport on 8 July 2015.
For the younger crowd looking to get more for their money, Croatia is an excellent option for a July holiday, when travellers spending the Kuna can enjoy dinners averaging two-thirds the cost of the UK at €10 for a main dish and a beer for €2-3. Topdeck Travel has recorded an increase of 101 per cent on trips to Croatia since last year and whether you're after a sailing adventure or city hopping trip, you can experience the beautiful country from £450 with the travel company.
Its unique volcanic landscape and year-round sunshine make Fuerteventura a great choice for travellers. There are sheltered beaches, watersports and land adventures to experience in July. Temperatures reach 30C in the summer and the current strength of the pound to the euro means you get more for your money. TravelSupermarket offers cheap seven-night holidays to Fuerteventura in July from £214 per person.
Travelling in a group? Zante offers everything you need to relax and enjoy yourself. The north of the island is home to beautiful landscapes, while the lively south coast boasts a vibrant atmosphere and amazing Greek hospitality. The strong pound against the euro and Greece's economic crisis mean Brits can enjoy great value for money on the holiday isle. Holiday Hypermarket offers a seven-night holiday in Zante for just £218 per person, departing Gatwick on 2 July.
A huge number of low cost flights from the UK, cheap meals in fantastic local fish restaurants and a choice of full-on resorts to quiet hotels make Portugal's Algarve a wonderful option for an affordable holiday in July, says TravelSupermarket's Bob Atkinson. There are huge wide Blue Flag accredited sandy beaches for long days by the sea and great biking and walking in the Monchique Mountains above the coast for those who like to get active. TravelSupermarket offers week-long holidays to the Algarve in July from just £201 per person.
For guaranteed hot weather, five-star hotels at an affordable price and a mix of culture and relaxation, look no further than Marrakesh in July. If you're looking to escape the sunshine for a few hours, head for the Majorelle Garden before moving on to the galleries, bars and restaurants in the new town. Lastminute.com offers holidays to Marrakech in July from just £136 per person for four days.
In Greece, which is suffering because of the country's continuing economic crisis, prices in tourist bars have dropped slightly than a year ago which means even greater savings. According to Debenhams Travel Money, a three-euro bottle of beer will cost Brits £2.16, compared with £2.43 in 2014. Corfu is the second largest of the Ionian Islands, boasting beautiful scenery, golden sands and bright blue sea. On the Beach offers a seven-night holiday in Corfu for £261 per person on a room-only basis, with flights from Stansted on 2 July.
A strong exchange rate makes a self-catering holiday in Italy a very affordable option and in Sicily villa rental prices tend to be lower during the first three weeks of July. You can also soak up the atmosphere at Palermo’s colourful Santa Rosalia festival (14 July). Choose from a large selection of Wish Sicily villas near the pretty fishing village of Scopello, close to Palermo, the beach and the main cultural sights of northwest Sicily. 10 per cent discounts are available at several villas including Villa delle Stelle where prices start at £320 per person per week (based on four sharing). Ryanair flights start at £140 per person.
The 10 best beaches in Portugal according to TripAdvisor
Aldi and Lidl cutting the cost of holidays abroad
At nearly 5km long, Praia de Falesia, near Vilamoura, is one of the longest beaches in the Algarve. This uncommercialised beach is pristine and remains crowd-free even at peak season. Any criticisms? " A bit expensive for the loungers - 16 Euros a day."
Famous for its golden sand and little grottos, this is a magnificent beach, perfect for snorkelling and the views from the cliffs are spectacular. Any criticisms? "There are 225 steps (I counted) which I walked in 37C..."
This picturesque, shell-studded beach is perfect for families and ideal for those looking for a quieter, more traditional beach than the nearby stretches at Albefeira and Vilamoura. Any criticisms? "A long walk down but well worth it when you get there."
This lovely fine wide sandy beach stretches from Lagos to Alvor and boasts white sand and lots of nice beach bars and restaurants. Any criticisms? " Some parts of the beach slope steeply, so waves can be a bit rough, but there are plenty of areas where the beach is flat."
This beach is vast so there's plenty of space, even in peak season. There are caves to explore and lots of activities to indulge in. The western end is quieter. Any criticisms? "The resort itself is a bit run down."
This beach featured in the 60s Bond movie On Her Majesty's Service and is widely known as one of the most beautiful beaches in Portugal. Fabulous natural scenery, mazes of dunes and the Sintra mountain range in the background make it picture-perfect.
Troia sits on a pretty peninsula next to the Sado River estuary, with long beaches facing the Atlantic Ocean. A free ferry boat connection runs between here and the city of Setubal. Think beautiful views, white sand, an an unspoilt environment. Any criticisms? "Avoid the restaurants on the marina. Service is slow and staff rude."
This dramatically beautiful stretch of coast is a must-see if you are on the Algarve, with its interesting rock formations. It provides a wonderfully secluded spot even on windy days. Any criticisms? "Not suitable for people with walking difficulties as there are around 100 steps down to the beach (and thus 100 steps back up!)"
Praia de Gale beach has rocky formations and caves on the eastern side, with lots of rock pools to explore, while the eastern side is more spacious and open. Any criticisms? "Please be careful of your valuables when parking at this beach. We learned the hard way..."
This beach near Lagos, known as one of the 'seven marvels of Portugal', sits on an estuary and provides a haven for surfers and swimmers. It has remained a paradise for years, with no high rise hotels and not much development. Any criticisms? "Very busy in the summer holidays... it is more populated than any other beach in the area."