The weather in Koh Samui. Unless you prefer rain to sunshine, Koh Samui is a better bet in April. Refine your search to help you find the perfect Ko Samui property by price and number of bedrooms. Even when it does rain the clouds disappear quickly and the sun returns. These times of year are the busiest with tourists. On average, it rains or snows a fair amount: 3 to 10 times per month. After the scorching heat, the downpour is a welcome change, the rainfall cuts the humidity down which summers in Koh Samui is famous for. Ko Samui’s properties for rent are either listed by private home owners or property agents such as . At 228 square kilometres, Ko Samui is Thailand's third-largest island and famous for its full moon parties. The latest and today's weather in Ko Samui, Thailand updated regularly Ko Samui is a popular holiday destination off the east coast of Thailand. When is the sunniest time on Koh Samui? Is this weather information for Ko Samui reliable? For absolutely no legitimate reason, I get excited when Samui “wins”. Located off the east coast of Thailand between the Tropic of Cancer and the Equator, the island has a tropical monsoon climate with 3 … Koh Samui weather in April 6. Climate data for Ko Samui has been gathered every day since January 2009. Otherwise, it is still lovely to visit Samui in November because accommodation rates are cheaper, there are fewer tourists, and you can completely enjoy the island. As of 5:29 am ICT. Ko Samui average temperature. Rainy days (avg): 5 days (80mm) on Koh Samui vs 11 days (150mm) in Phuket; Sea temperature: 28°C on Koh Samui vs 30°C in Phuket *data source. The analysis of these meteorological data for Ko Samui allows us to determine the average for each month in Chaweng Beach, Bang Kao (Laem Sor beach), Bophut, Choeng Mon, Koh Madsum, Koh Phaluai, Koh Taen, Lamai beach, and 3 other cities. Mar. Weather in January. As it is the wettest month in Koh Samui. In Koh Samui, February and March are the sunniest days, while the cloudiest are September and October. At 25.2 °C | 77.4 °F on average, January is the coldest month of the year. Ko Samui Weather by month // weather averages The average asking price for property rentals in Ko Samui is ฿ 63,254 for houses and ฿ 0 for commercials. The average high during this season is between 85.8°F (29.9°C) and 83.9°F (28.8°C). The big storms are long gone but the island can still get rain every day (particularly at the beginning of the month). Sun mon tue wed thu fri … Calendar Year Picker View. Average monthly temperatures in Ko Samui (degrees centigrade and fahrenheit) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec °C: 28.4: 29.1: 30.2: 31.6: 31.8: 31.3: 31 Monthly Weather-Ko Samui, Surat Thani, Thailand. April is the hottest month of the year. Kata Beach in Phuket. Best Time To Visit Koh Samui, Month For Weather & Least Rain, Thailand. Jan. Calendar Month Picker. While the islands are enchanting all year round, the best weather is from December to April. Koh Samui: The tail end of the wet season. The temperature starts rising in Koh Samui by March. February is usually the driest, while April is the hottest. The island only faces some unpleasant weather approximately five years per time which the last big monsoon storm hit Koh Samui was in 2010 causing floods and some difficulties to travel by ferry. Weather is perfect this time of year in Koh Samui to be enjoyable for warm weather travelers. The temperatures are highest on average in May, at around 28.5 °C | 83.3 °F. May receives more rainfall than March and April. Phuket and Koh Samui Weather by Month. Keeping warm is rarely a problem in Koh Samui with each month offering plenty of sunny days. Summers in Koh Samui are hot with fewer to no rainfall. It will be sunny during these months, and the chances of light rain are close to zero. 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