Britain forecast roasting 30C weekend mapped with 120 areas prepped for red hot heatwave

People will need to stock up on sun cream and swimming costumes as the country is set for another heatwave, with 120 areas in Britain brace for scorching temperatures.

Temperaturesare expecting to soar as they reach over 30C in some areas of the country and forecasters say we could see the hottest June day on record over the coming days. Temperatures are expected to climb over 25C in many areas of the country over the next few days, with the temperatures peaking on Monday.

However, much of Norfolk and parts of Essexare are expecting to have a heatwave for the next five days. An official heatwave was declared is announced by the Met Office when temperatures exceed a specific threshold for three consecutive days.

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But that threshold varies depending on the area of the country. In London and parts of the south east, the temperatures has to go above 28C for three days to be in heatwave conditions. For the rest of the south east, the threshold is 27C.

In the south west of England, most of Wales, northern England and Northern Ireland, it is a heatwave if the temperature exceeds 25C for three consecutive days. The Met Office definition of a heatwave can be read here.

Based on forecast conditions published by OpenWeather for the next five days, there are 129 local areas which are now expected to experience heatwave conditions.

You can see if your area is forecast to experience heatwave conditions by typing your postcode into this interactive map:

The June UK temperature record stands at 35.6C, recorded both at Southampton Mayflower Park on June 28 1976 and at Camden Square, north London, on June 29 1957.

Met Office spokesman Graham Madge said: “There is a chance that we could meet or exceed that threshold set in 1976 and 1957. It is around a 20 per cent chance we could see weather observing stations exceed that – it is possible, not probable.”

A second amber heat health alert in two weeks has been issued today. The alert, which covers London, the East Midlands, South East, South West and East of England, started at midday on Friday and will last until 6pm on Tuesday.

Here is a full list of areas which are forecast to see temperatures which would count as an official heatwave, under the Met Office definitions. Areas which are not listed may still see very hot temperatures in the next five days but are not currently forecast to exceed the local heatwave threshold for three days in a row.

These areas are expected to exceed the heatwave threshold for all five of the next five days (from Friday 27 June to Tuesday 1 July).

• Peterborough
• Braintree
• Chelmsford
• Epping Forest
• Harlow
• Uttlesford
• Breckland
• Broadland
• King's Lynn and West Norfolk
• Norwich
• Tamworth
• West Suffolk

These areas will see heatwave conditions on four out of the five days:

• London (28 boroughs)
• Derby
• Leicester
• Rutland
• Nottingham
• Thurrock
• Bedford
• North Northamptonshire
• West Northamptonshire
• Cambridge
• East Cambridgeshire
• Fenland
• Huntingdonshire
• South Cambridgeshire
• Brentwood
• Colchester
• Ashford
• Canterbury
• Dartford
• Gravesham
• Maidstone
• Sevenoaks
• Swale
• Tonbridge and Malling
• Tunbridge Wells
• Charnwood
• Harborough
• Melton
• Oadby and Wigston
• Lincoln
• North Kesteven
• South Holland
• South Kesteven
• West Lindsey
• South Norfolk
• Gedling
• Newark and Sherwood
• Rushcliffe
• Babergh
• Mid Suffolk
• Rugby
• Warwick
• Crawley
• Mid Sussex
• Coventry
• Solihull

These areas will see heatwave conditions on three consecutive days:

• York
• Luton
• Bracknell Forest
• West Berkshire
• Reading
• Slough
• Windsor and Maidenhead
• Wokingham
• Milton Keynes
• Southampton
• Central Bedfordshire
• Dorset
• Buckinghamshire
• Bolsover
• Erewash
• South Derbyshire
• Mid Devon
• Wealden
• Cheltenham
• Gloucester
• Tewkesbury
• Basingstoke and Deane
• East Hampshire
• Hart
• Rushmoor
• Test Valley
• Winchester
• Broxbourne
• Dacorum
• Hertsmere
• North Hertfordshire
• Three Rivers
• Watford
• Blaby
• Boston
• East Lindsey
• Broxtowe
• Cherwell
• Oxford
• South Oxfordshire
• Vale of White Horse
• West Oxfordshire
• Lichfield
• Ipswich
• Elmbridge
• Epsom and Ewell
• Guildford
• Mole Valley
• Reigate and Banstead
• Runnymede
• Spelthorne
• Surrey Heath
• Tandridge
• Waverley
• Woking
• Nuneaton and Bedworth
• StratfordonAvon
• Horsham
• Redditch
• Worcester
• Wychavon
• St Albans
• Welwyn Hatfield
• East Hertfordshire
• Stevenage
• Harrow
• Hillingdon
• Kingston upon Thames
• Richmond upon Thames
• Sutton
• Monmouthshire