Crowds have flocked to the beaches to soak up the sunshine as temperatures hit almost 23C across parts of England amid warnings the warm weather is not going to last. Photographs show hundreds of people packed on to Bournemouth beach in Dorset on Saturday, while in the north kayakers took to Derwentwater in the Lake District. Temperatures hit highs of 22.8C at Wisley in Surrey at 3pm, 22.7C in Hull and 22.6C at St James’ Park in central London. The mercury is forecast to rise even higher on Sunday, with 24C expected in London and 21C in Newcastle. However, the Met Office meteorologist Sarah Kent warned it is “not going to be wall-to-wall sunshine”. She added: “First thing on Sunday morning there will be quite a lot of cloud across central parts of England, eastern Wales, and down to the south-west. And in that zone there will be outbreaks of rain, with the odd heavier burst of rain in the south-west.” There will be a mixture of bright spells elsewhere throughout the morning, but the weather will begin to turn later in the day with a risk of widespread showers. Northern Ireland and northern Scotland will see the best of the weather on Sunday, with only the “odd rogue shower” forecast during the day, Kent said. Showers and cloudy skies are forecast for northern England on Monday, turning to sunshine, with thunder and heavy showers by mid-afternoon in central and eastern areas. Kent said weather warnings may be put in place depending on the severity of the showers. Despite the unsettled weather, temperatures are forecast to hit 25C in London and up to 21C in northern Scotland.