Weather in Thailand
Thailand has got a typical tropical weather conditions. Humidity is there in most parts of the country and that too for most of the year. The northern part of Bangkok undergoes a climatic change in three seasons while the southern peninsular region has only two seasons. Seasons are better defined in northern Thailand. The weather remains mostly dry from November to May. Although it is mostly dry, slight weather changes are noticed in two clearly defined periods, from November to February and from March to May. The temperatures are pretty high from March to May. The northwest monsoon usually does not affect the northern zone of Thailand directly. But it is surely responsible for the cooling breezes from November to February.
The northern season which runs from May to November is dominated by southwest monsoon. Rainfall is pretty common during this phase in the north.
The southern zone of Thailand experiences two distinctive seasons, the rainy and dry. The seasonal periods vary from the western side of the peninsular to the eastern side. The west coast experiences rainy season due to the southwest monsoon. Rainfall is often accompanied by heavy storms especially from April to October. The eastern coast gets its rain from September to December.
The southern parts of Thailand overall get a rainfall of about 2, 400 millimeters every year which is pretty high compared to the northern and the eastern regions of Thailand which get around 1, 400 millimeters rain in a year.
The weather conditions are pretty comfortable and soothing in Thailand from November to February and this is why this is the best season to visit Thailand. The northwest monsoon breeze offers a relief from the dry heat. Morning temperatures are pretty comfortable while nights are pretty chilly. Temperatures even drop below freezing points at high altitudes.
The summer or dry season runs from March to June. The humidity level during this season is 75%. On an average the temperature ranges from 34 degree Celsius to 40 degree Celsius. April is the hottest month in Thailand and so, it is advised not to plan a visit to Thailand in April.
The humidity from July to October is about 90%. Maximum annual rainfall is also accumulated during this season. On an average the temperature is around 29 degree Celsius.
The weather conditions are bit unpredictable in Thailand. Dry weather is often interrupted by monsoon winds and rainfall.