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Lamai Beach Weather and Climate: A Comprehensive Guide

Lamai Beach has relatively stable weather with warm temperatures. It is also known for its large amounts of rainfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

In Lamai Beach temperatures are generally consistent throughout the year. Typically, average maximum daytime temperatures range from a very warm 31°C in May to a comfortable 29°C in the coolest month, January.

Nights are cooler, with lows often dropping to around 26°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Lamai Beach experiences significant rainfall throughout the year, averaging 1658 mm of precipitation annually. The climate in Lamai Beach shows significant variation throughout the year. Expect heavy rainfall in November, with an average of 302 mm of precipitation over 19 rainy days.

In contrast, February offers drier and sunnier days, with around 46 mm of rainfall over 5 rainy days. For more details, please visit our Lamai Beach Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Lamai Beach serves as an ideal destination. Expect longer, more sun-filled days in March with an average of 8.0 hours of sunshine daily, and embrace the darker days in September, offering only 4.8 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Koh Samui, Thailand (14 KM, 8 Miles).

Daily hours of sunshine

Data from: Koh Samui, Thailand (14 KM, 8 Miles).

Average water temperature

The mean water temperature over the year ranges from 27°C in January to 30°C in April.

Water temperature over the year

Data from: Koh Samui, Thailand (14 KM, 8 Miles).

Forecast for Lamai Beach

Wed   Jan 15
29°C | 24°C
N 4 m/s
broken clouds and no rain

broken clouds and no rain

Thu   Jan 16
29°C | 24°C
NE 3 m/s
11 mm
partly cloudy and rain

partly cloudy and rain

Fri   Jan 17
29°C | 25°C
NE 3 m/s
1.1 mm
broken clouds and small chance of rain

broken clouds and small chance of rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Lamai Beach in Thailand

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Lamai Beach?
    Most rainfall (rainy season) is seen in September, October, November and December.
  • Which is the hottest month in Lamai Beach?
    May has an average maximum temperature of 31°C and is the hottest month of the year.
  • Which is the coolest month in Lamai Beach?
    The coolest month is January with an average maximum temperature of 29°C.
  • Which is the wettest month in Lamai Beach?
    November tops the wettest month list with 302 mm of rainfall.
  • Which is the driest month in Lamai Beach?
    February is the driest month with 46 mm of precipitation.
  • Which is the sunniest month in Lamai Beach?
    March is the sunniest month with an average of 240 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.