Another 133 deaths have been recorded in the past 24 hours – a figure 46% higher than on July 28, when 91 deaths were recorded
Meanwhile, health chiefs are bracing for an increase in cases after the holiday.
Millions of Britons leave all weekend to make the most of the time, while 500,000 revelers party at festivals.
Cornwall is now the worst-affected place in the country for Covid after a five-fold increase in teenage infections.
Some 50,000 people attended Boardmasters in Newquay.
Ten percent later tested positive for Covid, despite the requirement to test negative before entry.
The southwest now has the highest infection rate of any region in England after millions of Britons traveled to the region for stays.
Cornwall and neighboring Devon were both hit by new Covid rules after the peak – children being asked to wear masks in common areas when they return to class.
But there are fears the situation will worsen across the UK in the coming days.
Eight festivals are taking place across the country this weekend, with hundreds of thousands of revelers coming together to party.
Leeds and Reading, Creamfields in Cheshire and Victorious in Portsmouth take place.
Tens of thousands of revelers are also heading to Pride in Manchester.
Those who were on their way to a festival were asked to take a quick flow test beforehand and stay home if they tested positive.
500,000 DIRECTIONS TO FESTIVALS
Elsewhere, NHS England has revealed it is already training vaccinators to sting young people between the ages of 12 and 15 in a back-to-school blitz.
The overall risk of a child becoming seriously ill or dying from Covid is extremely low.
In the pandemic’s first year, 25 under 18 died from the virus, while 251 were admitted to intensive care units in England.
Meanwhile, all teachers and parents will have been offered the jab, with 42.3 million second doses distributed to adults in the UK so far.
However, SAGE experts have warned that a outbreak of Covid in September – when young people return to class – is “very likely”.
“VERY LIKELY” OVERVOLTAGE
Authorities predict a “high prevalence” of the virus in schools by the end of the month.
And experts at the Scientific Pandemic Influenza Group on Modeling – or SPI-M – say Boris Johnson must now plan for a jump in cases.
While a health watchdog has yet to give the green light to jabs for children under 16, Health Secretary Sajid Javid has said the government must be ready to “act quickly ” .
This is one of the strongest clues to date that children will be immunized.
The latest data shows that Covid cases have increased across the UK. Currently, one in 70 people in England is now infected.