More than 430 migrants sailed across the English Channel to the UK on Monday.
The number set a new single-day record, passing the previous daily high of 416 set in September last year, according to data compiled by the PA news agency.
Monday’s figure included a group of around 50 men, women, and children who were seen walking ashore after landing near Dungeness in Kent.
They are thought to have left northern France or Belgium on a dinghy earlier on Monday.
The dinghy was watched by the RNLI as it came closer to the coast before it landed at around 1pm.
After the group arrived, some of its members celebrated, while others sat down on the beach.
It came as parliament debated proposed reforms to the UK’s asylum system.
Former prime minister Theresa May warned against the idea of sending asylum seekers to offshore processing centres, something that is done under controversial policies in Australia.
The Nationality And Borders Bill could see asylum seekers sent to a “safe third country” where they would submit claims at a “designated place” determined by the secretary of state.
More than 1,850 people have reached Britain on small boats in July so far, according to PA analysis.
That is more than the 2019 total.