Thailand Country Guide

Climate

 
 

Thailand's climate is largely tropical and therefore hot and humid all year around with temperatures ranging from 28°C to 35°C (82-95°F). There is a rainy and hot southwest monsoon season from mid-May to September and a relatively dry and cool northeast monsoon from November to mid-March. The southern isthmus of Thailand is always hot and humid but the mountainous regions in the far north are cooler.

 
 
 
 
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Sunny beach in Thailand by Ahoerstemeier

Cool Period
From November to February, it does not rain much and temperatures are relatively at their lowest. However, you will not notice the difference in the south and will only need to pack a sweater if travelling in the mountainous region of the north, where temperatures can fall as low as 5°C.

Hot Period
From March to June, Thailand swelters in hot temperatures reaching as high as 40°C (104°F). Though pleasant at the beach with a drink in hand but not the best months to be walking the streets or around the temples in Bangkok.
However, temperatures in the mountainous regions of the north offer cooler relief.

Chiang Mai in Northern Thailand by Bjørn Erik Pedersen

Rainy Season
Thailand's rainy season occurs from July to October and reaches its peak in September with tropical monsoons hitting much of the country. This does not mean that it rains non-stop but usually rains about an hour or two at most. However, when it rains it pours heavily and flooding in the low-lying areas of Thailand are not uncommon.

 
Thailand
Country Guide
 
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