Little change this month as blue skies dominate every day, with temperatures slowly starting to rise averaging 30°C by the end of the month. March remains perhaps the most popular month to visit from the UK, especially those who are combining Cambodia with Vietnam, as the weather throughout your holiday should be perfect. Water levels begin to fall towards the end of the month, meaning that the Tonle Sap is not as impressive and cruise prices along the Mekong start to drop.