April - Visak Bauchea; commemoration of the birth and the first sermon of the Buddha; exact date determined by the lunar calendar.
April 17 - Independence Day; national holiday in commemoration of the fall of the Lon Nol dictatorship on April 17, 1975.
May 1- Labour Day
June 19 - Memorial Day of the founding of the revolutionary forces of Cambodia in 1951; parades in Phnom Penh.
June 28 - Memorial Day of the founding of the Revolutionary People's Party of Cambodia in 1951; parades and celebrations in Phnom Penh.
July - beginning of the Buddhist Lent; the exact date depends on the lunar calendar. The day is preferred by Cambodian and Buddhist men of neighbouring countries for becoming monks, mostly on a temporary basis.
September - the day of the final celebrations of the Buddhist Lent; exact date determined by the lunar calendar.
September - Prachum Ben; a kind of Cambodian All-Saints-Day in commemoration of the dead and ancestors; exact date determined by the lunar calendar.
October and November - Water Festival; this festival celebrates the turn of the current of the Tonle Sap river. The Tonle Sap river connects lake Tonle Sap with the Mekong. For most of the time the river flows from lake Tonle Sap into the Mekong. However, during the rainy season from about June to October the Mekong carries a high water level, and in response the Tonle Sap river flows in reverse direction, from the Mekong back into lake Tonle Sap. This causes lake Tonle Sap to swell to more than twice its regular size. At the end of the rainy season, when the water level of the Mekong drops again, the current reverts and the water added to lake Tonle Sap during the rainy season flows back into the Mekong.
