By June, temperature drops are felt significantly in the northern regions, and Chiang Mai records pleasant weather. Rainfall estimates gradually rise and the monsoon season begins to be felt. The Andaman Sea coast of Thailand averages similar temperatures during June, but rain in the region increases significantly. Phuket receives nearly 300 mm of rainfall whereas Krabi gets more than 250 mm, effectively signalling the beginning of the monsoon season. Places like Koh Samui on the Gulf of Thailand coast experience good amounts of sunshine, and as it is the low-season, expect far fewer crowds at traditional tourist destinations. Although still hot and humid in many places and wet in many others, travellers often choose June because sightseeing is quite comfortable and fun. Trekking in the northern hills of Pai and Mae Salong is common. Many might even head down to the gulf islands of Koh Samui, Koh Tao, Hua Hin and Koh Phangan to laze around on the beach without worrying about a storm hitting them hard.