If you want to plan your trip to Cambodia around some of the holidays and festivals that take place in the kingdom, then here is a list of the 2011 dates that may help you with your pre-trip planning. Most of the main tourist spots remain open and available during these dates, with the Angkor temple complex open all year round, as are the Phnom Penh sites at the National Museum, S-21 Tuol Sleng Genocide Museum and the Choeung Ek killing fields. However, the Royal Palace in Phnom Penh is closed occasionally during some of the holiday dates.
January: 1st International New Years Day; 7th Victory over Genocide Day.
February: 18th Meak Bochea Buddhist Day
March: 8th International Women’s Day
April: 14th, 15th, 16th Khmer New Year; 28th Visak Bochea Buddhist Day
May: 1st International Labor day; 13th, 14th, 15th King Sihamoni’s Birthday; 21st Royal Ploughing Festival
June: 18th Queen Mother’s Birthday
September: 24th Constitutional Day; 26th, 27th, 28th Pchum Ben Buddhist Festival
October: 29th King’s Coronation Anniversary; 31st King Father’s Birthday
November: 9th Independence Day; 9th, 10th, 11th Water Festival
December: 10th International Human Rights Day