Khao Yai is located 400 m and higher above sea level, making it cooler and more pleasant than the hot, humid lowlands in Central Thailand. The dry season that lasts from November to February, when most people tend to visit, has temperatures that can fall as low as 4-6 degrees Celsius. The cool weather and clear skies make this the favorite season for hiking and bird watching. But we are recommended you to take some warm clothing with you when you go. The hot season in Khao Yai is between March and April, followed by the May to October rainy season. The park is open during the rainy season, but traveling on foot is rather difficult, and you should take heavy raingear and leech medicine.
With over 300 species of resident and migratory birds, including: Great and Wreathed hornbills, Barbets, Scarlet Minivet, Trogons, Broadbills, Pitas, Pigeons, Mountain scops-Owl, Great Slaty Woodpecker, Collared Owlet, Blue-winged leaf bird, Asian Fairy bluebird, Greater Racket-tailed Drongo, Green Magpie, 3 species of laughing thrush and many types of Bulbuls. In Khao Yai also have many Silver Pheasants, Scaly breasted Partridges, Red Junglefowl and Siamese Fierback. Near the rivers and ponds we may find White-throated Kingfisher, Prinia, Zitting cisticola and many more.