TUI has shared which country is the "best" to visit for warmth and sunshine during summer, as part of its latest 'ideal weather holiday guide' research. The data comes as Brits enjoy a taste of warmer weather and blue skies. However, forecasters warn the sunshine won’t last, with rain set to return by the end of the weekend and throughout next week. With uncertainty at home, holidaymakers are looking abroad for guaranteed sunshine. TUI claims searches for "best family holiday destinations