October weather forecast and climate
Ko Samui, Thailand

The scenic view of the striking Angthong National Marine Park in Ko Samui, Thailand, calm clear water all around
The scenic view of the striking Angthong National Marine Park in Ko Samui, Thailand, calm clear water all around

What is the temperature in October in Ko Samui?

The average high-temperature, in October, in Ko Samui, is 29.6°C (85.3°F), while the average low-temperature is 24.3°C (75.7°F).

How many days does it rain in October in Ko Samui?

In Ko Samui, during October, the rain falls for 20 days and regularly aggregates up to 309.8mm (12.2") of precipitation.
Average temperature in October - Ko Samui, Thailand
  • Average high temperature in October: 29.6°C

The warmest month (with the highest average high temperature) is April (32.6°C).
The month with the lowest average high temperature is January (29°C).

  • Average low temperature in October: 24.3°C

The month with the highest average low temperature is April (26.1°C).
The coldest month (with the lowest average low temperature) is December (23.9°C).

Average humidity in October - Ko Samui, Thailand
  • Average humidity in October: 85%

Months with the highest relative humidity are October and November (85%).
Months with the lowest relative humidity are June, July and August (78%).

Average rainfall in October - Ko Samui, Thailand
  • Average rainfall in October: 309.8mm

The wettest month (with the highest rainfall) is November (506.6mm).
The driest month (with the lowest rainfall) is February (54.4mm).

Average rainfall days in October - Ko Samui, Thailand
  • Average rainfall days in October: 20 days

Months with the highest number of rainy days are October and November (20 days).
The month with the lowest number of rainy days is March (4 days).

Average sea temperature in October - Ko Samui, Thailand
  • Average sea temperature in October: 29.3°C

The best month for swimming (with the highest average sea temperature) is May (30.1°C).
The coldest month (with the lowest average sea temperature) is January (27.8°C).

Average daylight in October / Average sunshine in October - Ko Samui, Thailand
  • Average daylight in October: 11.9h

The month with the longest days is June (Average daylight: 12.7h).
Months with shortest days are January and December (Average daylight: 11.6h).

  • Average sunshine in October: 6h

The month with most sunshine is February (Average sunshine: 9h).
Months with least sunshine are May, June, July, August, September, October, November and December (Average sunshine: 6).

Average UV index in October - Ko Samui, Thailand
  • Average UV index in October: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).

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