Doi Inthanon km44.4. From March to June, temperatures are pleasant especially at higher altitudes. The rainy season runs from April to November, when it sometimes rains more than two hours per day. Geologically the mountain is a granite batholith in a north-south oriented mountain range. The second-highest peak of this range is Doi Hua Mot Luang at 2,340 m. In 2014, visitors to the mountain left behind 36 tonnes of rubbish. Doi Inthanon Doi Inthanon (, ) is the highest mountain in Thailand. It is in Chom Thong District, Chiang Mai Province. This mountain is an ultra prominent peak, known in the
Doi Inthanon at Doi Luang, which was then renamed in his honour. Today, the summit of Doi Inthanon is a popular tourist destination for both foreign and Thai tourists, with a peak of 12,000 visitors visiting the summit on New Year's Day. In addition to a range of tourist facilities on the summit, there is also a Royal Thai Air Force weather radar station at the summit and the Thai National Observatory (TNO) at km44. Doi Inthanon is the highest peak of the Inthanon Range () of the Thanon Thong Chai Range, a subrange of the Shan Hills in the Thai highlands