Skip to main content

 Climates to travel
 World climate guide
 
 
 Home
 Africa
 N.America
 S.America
 Antarctica
 Asia
 Caribbean
 Europe
 M.East
 Oceania
 All the countries
 Home
 Africa
 N.America
 S.America
 Antarctica
 Asia
 Caribbean
 Europe
 M.East
 Oceania
 All the countries

Climate - Ko Samui (Thailand)


Average weather, temperature, rainfall, sunshine hours

Flag - Thailand

Koh Samui, where it is


You are here: Home --> Asia --> Thailand --> Ko Samui




Climate chart - Ko Samui
In Ko Samui, an island located east of peninsular Thailand, at 9 degrees north latitude, the climate is tropical, hot all year round, with a long rainy season due to the monsoon of Southeast Asia, which runs from May to mid-January, and a drier season from mid-January to April. The driest months are February and March, when, however, some showers can sometimes occur.
As mentioned, the temperature is high throughout the year, however, the coolest months are December and January, while from February to May, an increase in temperature is observed, though less marked than in the mainland of Thailand. April and May are, albeit slightly, the hottest months. In the summer months, the heat continues to be intense and sultry, though tempered by sea breezes, as happens in the rest of the year.
Here are the average temperatures.
Ko Samui - Average temperatures (1981-2010)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January242926.6768479.9
February252927.2778581
March263128.1788782.6
April263229799084.3
May263329.2789184.5
June263229789084.2
July253228.6779083.6
August253228.6779083.6
September253228.2778982.8
October243027.4768781.3
November243026.8758580.3
December242926.6758579.8
Year253127.976.987.782

Rainfall amounts to about 1,900 millimeters (77 inches) per year, and the brevity of the dry season allows the forest to grow in the interior of the island. Within the rainy season, we can distinguish between two periods: at the beginning, in May, there is the first peak, then the rains are quite abundant but without excesses from June to September, when they occur in the form of showers or downpours, usually short-lived, and finally, between October and December, the true rainy peak occurs, when the rains are torrential, especially in November. In fact, in the last months of the year, the northeast monsoon, or retreating monsoon, starts to blow, affecting the coasts exposed to the wind coming from the sea and the neighboring islands.
Here is the average precipitation.
Ko Samui - Average precipitation
MonthMillimetersInchesDays
January853.311
February552.26
March803.16
April853.39
May1556.116
June1254.914
July1154.514
August1104.315
September1204.716
October31012.220
November50519.919
December2108.314
Year196077.2159

The amount of sunshine is good in the driest period, from mid-January to April, while in the rest of the year, the sun often shines, but it alternates with some cloudiness, more or less widespread, and associated with rain showers. Here are the average sunshine hours per day.
Ko Samui - Sunshine hours
MonthAverageTotal
January6.5200
February7.5215
March7.5240
April6.5200
May6190
June5150
July5155
August5150
September5145
October4.5145
November6175
December5.5175
Year5.92140

Koh Samui, like other parts of Thailand, can be affected by tropical cyclones, in particular, by typhoons coming from the east, which, in recent decades, have entered the Gulf of Thailand only from mid-October to about December 20, although, being the sea always warm, it can not be excluded that they can also be formed in other periods.
Anyway, the Gulf of Thailand is a relatively sheltered area, since it lies halfway between the Bay of Bengal, where cyclones are formed, and the South China Sea, where typhoons arrive from the east, and normally pass to the north, directly affecting the continental part of Thailand.

Koh Samui, sea

The sea in Ko Samui is warm enough to swim in all year round, as you can see in the following table.
Ko Samui - Sea temperature
MonthCelsius (°C)Fahrenheit (°F)
January2882
February28.583
March2984
April3086
May3086
June3086
July29.585
August29.585
September2984
October2984
November2984
December28.583
Year29.284.5

Best Time


The best time to visit Koh Samui is from the middle or the end of January through April, with a preference for February, since it is a bit cooler than March and April.
In the summer, in July and August, it might very well not rain for a week, while at other times, it may rain quite often, albeit in the form of showers, which soon give way to the sun. However, in this period, it's hot and muggy. The worst time is that of the retreating monsoon, especially the month of November.


© Copyright Climatestotravel.com. 

Back to Asia --> Thailand

All the countries


Share this page:
Facebook Twitter LinkedIn Whatsapp Email



 Continents:
 Africa
 North America
 South America
 Antarctica
 Asia
 Caribbean
 Europe
 Middle East
 Oceania

Search in the website:

Home About Contact Us Link Policy
Home
About
Contact Us
Link
Policy