Data from the Ministry of Defence shows 696 people made the journey from the continent in 14 boats on Monday. More than 17,000 people have arrived in the UK in small boats in 2022 after making the treacherous crossing, navigating busy shipping lanes from France.
Only one other day this year has the total number of crossings topped 600.
The previous highest number was 651 recorded on April 13.
Yesterday’s record on August 1 comes after July saw the highest monthly total of crossings this year, with 3,683 migrants on 90 small boats.
Both Rishi Sunak and Liz Truss have vowed to decrease the number of people making it across the Channel if they are the next Prime Minister.
READ MORE: ‘Rwanda policy is the right policy!’ Truss ‘determined’ to deport more
Last week, Mr Sunak, who is the son of immigrants who moved to the UK in the 1960s, said it was “absolutely critical that we have control of our borders”.
He said: “This country has a proud history of welcoming people but it’s also vital that we’re in control of who’s coming here.
“And, sadly, there is an illegal set of criminal gangs who were causing people to die in pursuit of coming here. We must stop that.”
Meanwhile, Ms Truss said she would work with France and other European partners to reduce the illegal immigration.
Both candidates say they would continue with the Rwanda policy of the current Home secretary, Priti Patel.
On April 14 Ms Patel signed what she described as a “world-first” agreement with Rwanda under which the east African nation will receive migrants deemed by the UK to have arrived illegally and are therefore inadmissible under new immigration rules.
Armed migrants? Tories making UK unsafe place to live NIGEL FARAGE [COMMENT]
Rishi Sunak lays out 10-point plan to curb illegal immigration [IN DEPTH]
Kigali admits it has space for just 200 migrants as UK forks out £120m [UPDATE]
Ministers believe the policy will help deter the number of people putting their lives at risk trying to cross the Channel if they know they will be quickly deported.
The Government argues interventions by the European Court of Human Rights is responsible for the continued high number of crossings.
The first deportation flight under the Rwanda scheme was due to take off on June 14 but was abandoned after last-minute legal challenges.
No flights are now expected to take place until at least the autumn while full court hearings are heard.
Since Ms Patel first unveiled her plans, 11,827 people arrived in the UK after making the journey.
Giving his support to the policy, Mr Suank said: “In June 2016, the people of this country sent a clear message.
“I heard them and as Prime Minister I will do what was promised and take back control.”
Ms Truss vowed: “The Rwanda policy is the right policy.
“I’m determined to see it through to full implementation, as well as exploring other countries that we can work on similar partnerships with. It’s the right thing to do.”