Climate data for Ko Samui has been gathered every day since January 2009. Ko Samui average temperature. 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. When is the sunniest time on Koh Samui? 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 On average, it rains or snows a fair amount: 3 to 10 times per month. 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. Phuket and Koh Samui Weather by Month. Located off the east coast of Thailand between the Tropic of Cancer and the Equator, the island has a tropical monsoon climate with 3 … 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. February is usually the driest, while April is the hottest. Even when it does rain the clouds disappear quickly and the sun returns. The weather in Koh Samui. Best Time To Visit Koh Samui, Month For Weather & Least Rain, Thailand. After the scorching heat, the downpour is a welcome change, the rainfall cuts the humidity down which summers in Koh Samui is famous for. Refine your search to help you find the perfect Ko Samui property by price and number of bedrooms. Monthly Weather-Ko Samui, Surat Thani, Thailand. Mar. As it is the wettest month in Koh Samui. April is the hottest month of the year. Keeping warm is rarely a problem in Koh Samui with each month offering plenty of sunny days. Ko Samui Weather by month // weather averages These times of year are the busiest with tourists. The temperature starts rising in Koh Samui by March. Ko Samui’s properties for rent are either listed by private home owners or property agents such as . In Koh Samui, February and March are the sunniest days, while the cloudiest are September and October. Is this weather information for Ko Samui reliable? For absolutely no legitimate reason, I get excited when Samui “wins”. Calendar Year Picker View. Weather in January. 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. 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. Jan. Calendar Month Picker. Kata Beach in Phuket. The big storms are long gone but the island can still get rain every day (particularly at the beginning of the month). Koh Samui weather in April 6. At 25.2 °C | 77.4 °F on average, January is the coldest month of the year. Koh Samui: The tail end of the wet season. Summers in Koh Samui are hot with fewer to no rainfall. The temperatures are highest on average in May, at around 28.5 °C | 83.3 °F. As of 5:29 am ICT. May receives more rainfall than March and April. It will be sunny during these months, and the chances of light rain are close to zero. The average asking price for property rentals in Ko Samui is ฿ 63,254 for houses and ฿ 0 for commercials. Sun mon tue wed thu fri … Unless you prefer rain to sunshine, Koh Samui is a better bet in April. Koh Samui is a year-round travel destination as the weather there is not severe even during the monsoon period. The average high during this season is between 85.8°F (29.9°C) and 83.9°F (28.8°C). 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