Deciding when to Visit Thailand really depends upon Finding out what the weather will be like where you are going.DEC
Thailand is home To a typical tropical climate in the far south, with southern and central Thailand not seeing much variation in temperatures yearlong, while the north is more influenced by the monsoon compared to the south. Temperatures during the year hover between 18°C and 35°C, with the warmest and the coldest months.
Monsoon Seasons:
During the Monsoon, which occurs from May to late September/early October sees most of its rain, with the weather and hours of sunshine decreasing to about six hours. At this moment, the beaches on the Andaman or west coast receive the rain.
The northeastern Monsoon, from November to around April however, brings much drier atmosphere and the north of the country, such as Chiang Mai from the south-west, sees its coolest months. Temperatures here can drop to a minimum of 13°C but reach a maximum of 29°C.
In the south, Between September and December when rain falls on the shore is, Affecting islands like Koh Phangan and Koh Samui.
The fantastic news for those going to beaches in the south is that they should have the ability to avoid the rain by going at any time of year to either the east or west shore.
Bangkok:
"Bangkok [the Thai capital which sits at the south-central portion of the nation ] is at its best during the cool season, from November to February, after the monsoon and prior to the sweltering heat sets in at the start of March. April, May, and June are infernally hot - sitting on a motorbike at the day time is like riding through a firestorm - although, by mid-June, the rains usually arrive, bringing much-needed respite, taking the dust from the air and making the plants grow in record time," states Telegraph Travel's Bangkok specialist Tom Vater.
"The rainy season is, in fact, a fantastic time to visit - few tourists, lower temperatures and the occasional monsoonal downpour that flooding the streets and brings out the kids to play."
Phuket
"In Phuket [Thailand's largest island located in the south of the country], temperatures hover around 30°C throughout the year, but the high-season really sits between November and March when the rains die down and the Andaman Sea settles to a lake-like calm. Outside of these months, the weather stays hot and humid, and there is plenty to do in terms of actions, whether it's diving amidst the limestone islands, birdwatching, relaxing at a spa or trekking through the jungle," says Telegraph Travel's villas in Phuket Thailand specialist Lee Cobaj.
"July to October in Phuket is somewhat more challenging when it comes to the weather, as the seas creep up and red warning flags litter the shores - great for surfers, especially on the west coast, but maybe not as much fun for those expecting to lounge. There is no guarantee of sunshine in this time, and it is not uncommon for it to rain for months at a time in late summer and early fall."