Central Thailand experiences the country’s three seasons in distinct measure; it can dump rain in Sangkhlaburi for days while Kanchanaburi only sees sun. It is hot from February to June, rainy from June to roughly October, and cool (relatively speaking) from October to January: one constant is the humidity. Within the region there are some variations. During the rainy season, Sangkhlaburi is inundated with rain, days and days of it, while Kanchanaburi might only see a few afternoon sprinkles. Because of altitude, it can be significantly cooler in Sangkhlaburi than in other parts of the region. Ayuthaya and Lopburi sit in a wide-open plain that receives similar amounts of rain and heat as Bangkok.