As many as 1,424 people crossed the English Channel via 24 small boats over the last weekend, bringing the total crossings this year to 25,052, according to the Home Office data.
The latest figures released on Monday showed a total of 707 people were detected crossing the English Channel via 11 small boats on Saturday.
On Sunday, 717 migrants arrived in the UK via 13 boats, which is the second-highest number this year.
It is also the highest daily figure since the Labour Party won the general elections on July 4.
The highest number on a single day in 2024 was on June 18, when 882 people crossed the Channel.
So far, more than 25,000 migrants have arrived in the UK via small boats this year, while nearly 30,000 people came to the UK this way last year, according to official data.