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Koh Samui Weather & Climate
Current Condition, Weather Forecast, Statistics and
Historical Data |
Koh Samui's monsoon season starts in October with the
north-east monsoon carrying moisture from the Philippines and Indonesia. The
south-west monsoon from India, which mainly affects Phuket and the Andaman
coast is rarely felt on Koh Samui, as a massive mountain range on the
mainland shields Thailand's eastern shore.
Koh Samui has three seasons. February to May is the hot and dry season with
peak daytime temperatures exceeding 40 degrees Celsius and little rain,
except for short, but heavy cloudbursts.
Typical weather from June to September brings more tropical rain showers, a
short and welcome breather from the heat of the day. Daytime temperatures
are still in the high thirties. The beaches are wide and bright, the sea is
generally calm and smooth.
Koh Samui's monsoon season starts in October with torrential rain falls,
flooding, mud slides, strong wind and waves from the east. This nasty
weather is caused by the north-east monsoon coming up from the Philippines
and Indonesia. Also November can be rather wet. Temperatures drop to twenty
degrees at night - which is quite cold by local standards. The heavy rain
and flooding usually comes to an end in early December. The wind still blows
from the east, driving high surf into the beaches of Chaweng and Lamai.
Fortunately the hotel and resort areas in the bays of Maenam, Lipa Noi and
Taling Ngam are somewhat sheltered from the strong waves The beaches here
offer superior conditions for swimming and beach safety until windy
conditions settle down by the end of January. |
 Historical Temperature
maxima & minima on Ko Samui for the year |
 Water temperature in the
sea & precipitation |
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