Discover Kok Kood: a hidden gem in Thailand
Discover the hidden gem of Thailand - Koh Kood! Explore stunning beaches, waterfalls and eco-friendly resorts while enjoying a peaceful atmosphere away from the crowds.
This page shows both the average monthly rainfall and the number of rainy days in Lamai Beach, Koh Samui, Thailand. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's explore the details to provide you with a complete overview.
Lamai Beach has a relatively rainy climate with high precipitation levels, averaging 1658 mm (65 in) of rainfall annually.
The seasons in Lamai Beach, bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 302 mm (12 in) of precipitation. This rainfall is distributed across 19 rainy days.
In contrast, the driest month, February, experiences much less rainfall, totaling 46 mm (1.8 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.November, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 175 hours of sunshine in this period. During the driest month February you can expect a temperature of 29°C (84°F). For more detailed insights into the city's temperatures, visit our Lamai Beach Temperature page.
Average daily rainfall for each day of the month based on long-term records. 47-year average (1976-2025)
Browse day-by-day precipitation records for Lamai Beach spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
The map below shows the annual precipitation across Thailand. You can also select the different months in case you are interested in a specific month.
Lamai Beach's average annual precipitation is 1658 mm (65 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
Climate change is affecting precipitation patterns worldwide, including Lamai Beach:
For more detailed information about Lamai Beach's weather, including sunshine hours, humidity levels, and temperature data, visit our Lamai Beach Climate page.
Pick a month to see the average temperature, rainfall and sunshine in Lamai Beach - and find the best time to visit.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Lamai Beach climate overview or explore weather in Thailand.
Where to go in October - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Discover Kok Kood: a hidden gem in Thailand
Discover the hidden gem of Thailand - Koh Kood! Explore stunning beaches, waterfalls and eco-friendly resorts while enjoying a peaceful atmosphere away from the crowds.
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