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 Chaweng Beach, Koh Samui, Thailand. This average is based on long-term data collected between 1990 and 2020. Let's explore the details to provide you with a complete overview.
Chaweng Beach has a relatively rainy climate with high precipitation levels, averaging 1681 mm (66 in) of rainfall annually.
The seasons in Chaweng Beach, bring significant changes in precipitation. The wettest month, October, receives heavy rainfall, with an average of 302 mm (12 in) of precipitation. This rainfall is distributed across 20 rainy days.
In contrast, the driest month, February, experiences much less rainfall, totaling 45 mm (1.8 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.October, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 146 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 Chaweng 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 Chaweng 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.
Chaweng Beach's average annual precipitation is 1681 mm (66 in). Let's compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 620 mm (24 in), evenly distributed across the year with no extreme wet or dry seasons.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
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 Chaweng Beach:
For more detailed information about Chaweng Beach's weather, including sunshine hours, humidity levels, and temperature data, visit our Chaweng Beach Climate page.
Pick a month to see the average temperature, rainfall and sunshine in Chaweng Beach - and find the best time to visit.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Chaweng 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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