The US president will meet the Queen at Windsor Castle and the prime minister, Theresa May, at Chequers, her country estate in Buckinghamshire, but precise details of Mr Trump and his wife Melania's movements are scarce for security reasons.
Planned demonstrations will commence on the evening of Thursday 12 July at Blenheim Palace in Oxfordshire and in London's Regent’s Park, where the US ambassador’s residence is and where some believe the Trumps will be staying.
Further protests will take place at Chequers on Friday morning, before the main event outside the BBC’s headquarters in central London at 2pm.
Marchers from organisations including the TUC, Stop the War, Friends of the Earth and Momentum will then proceed down Regent’s Street to Trafalgar Square for a gathering at 5pm.
Activist Leo Murray has raised £16,000 to pay for “Project Trump Baby”, a six-metre-high inflatable version of the president with unusually small hands and feet and sporting a nappy, which he intends to fly over the capital.
The Greater London Authority has given Mr Murray permission to tether the balloon in Parliament Square after a petition secured 10,000 signatures.
HUGE news coming in: DONALD J TRUMP BABY WILL FLY! @SadiqKhan tried to play hard ball - in the end he had to make a Deal. No surprise - he's never won anything in his life! Sad - but True! London here I come! https://t.co/j3KCPimHI2pic.twitter.com/oc2VKWKSN1
— Trump Baby (@TrumpBabyUK) July 5, 2018
A spokesman for London's mayor, Sadiq Khan, said he “supports the right to peaceful protest and understands that this can take many different forms”.
Avoiding London to escape such indignities appears to be a priority for the president and his security detail.
He is also expected to visit Scotland as part of the trip, from where his family hails and where Mr Trump owns golf resorts in Aberdeenshire and Ayrshire.
Protests are being held there too in anticipation – in Glasgow on Friday and Edinburgh on Saturday, where organisers are promising “a carnival of resistance”, with anti-Trump fairground-style games promised among the attractions.