The best time to travel to Cambodia is from October to February as the air is cool and the skies clear. However, the dust at this time of year can be irritating and the crowds at the Angkor temples at their highest numbers.
March to May sees hotter temperatures and dry skies, and the heat continues into June and through August when the monsoon season starts. The rains however do not usually cause a major problem for travelers as they tend to be short and hard afternoon showers.