Koh Samui Weather
Golden sand, azure water, aqua blue sky, and Koh Samui weather, take this heavenly little isle of Thailand to another level. Thailand is home to some of the most pristine islets, yet one destination which stands out is Koh Samui. No matter how many attractions and unexplored charms it holds, Koh Samui's temperature is one big facet that overshadows all of its other attractions. Known for its quaint ambiance, Koh Samui is a gracious host to numerous tourists from all around the world and all year!Be it spine-tingling adventures, pleasurable explorations, shopping sprees, street-side tidbits, spa and sauna facilities, or simple sunbathing sessions, Koh Samui comes loaded with all these in all seasons. The climate in Koh Samui during January complements the celebratory mood of visitors. The weather enhances the overall experience of the visitors during November and December. Each month in Koh Samui spoils visitors with unending choices and diversions. Below is a listing of what to expect in Koh Samui every month.
Koh Samui Weather in January

New year in a sandy and splashy destination like Koh Samui is like a dream come true for many tourists. The pastel-hued skies and the benign Koh Samui temperature offers an ideal getaway against the freezing and unexciting destinations.
The average temperature in January is 28 °C to 24 °C, making days exuberant and nights even more thrilling. The climate during the whole of January remains pleasantly warm, with an average precipitation of 147.7 mm. The occasional downpour refreshes the islet and offers visitors a greeny-swathed view. Hence, the climate during January is an ideal time for tourists, who wish to witness the awe-inspiring beauty of this islet.
Average Maximum Temperature: 26 °C
Average Precipitation: 147.7 mm
Temperature Range: 28°C - 24°C
Koh Samui Weather in February

The climate in Koh Samui in February witnesses a great relief with the rays of sunshine falling upon this islet. The average Koh Samui temperature in February is 25 °C to 29 °C, making day adventures fun and enthralling for tourists. Whether one wishes to soak in the sun or plans on trying out adventure sports, the climate over here during February is ideal for all kinds of ventures. The average precipitation in Koh Samui during February is 56.4mm, making it the least rain receiving a month. The weather in February is a major crowd-puller, as tourists can enjoy a refreshing getaway with perfect sunsets, day jaunts, and much more.
Average Maximum Temperature: 27°C
Average Precipitation: 56.4 mm
Temperature Range: 29 °C - 25°C
Koh Samui Weather in March

The temperature over here gets a bit hiked up in March. The average temperature during March is 24°C to 29 °C. The climate over here is majorly warm in this month with lots of sunshine and humidity rising from 63% to 91%.
As the month of March brings a rise in temperature, the islet is visited by adventure freaks in huge numbers. The climate in Koh Samui during this time makes it the peak season for diving and snorkelling. The average precipitation in Koh Samui is 91mm, whereby visitors can enjoy sunny days with some occasional downpours.
Average Maximum Temperature: 29°C
Average Precipitation: 91 mm
Temperature Range: 29°C - 24°C
Koh Samui Weather in April

The climate is hot in Koh Sumai during April, with fewer tourists opting for day outs. However, the temperature gets a little pleasant and moderate when the sun goes down. April is the time when most tourists look forward to water sports and indoor or evening recreations, as the average temperature becomes 25°C to 30° C.
The average precipitation in this season sees a downslide of 81.9 mm. Apart from the rise in the temperature, April is the month for important festivals like Koh Samui Triathlon and LGBT Pride Festival.
Average Maximum Temperature: 29°C
Average Precipitation: 81.9 mm
Temperature Range: 30°C - 25°C
Koh Samui Weather in May

The paradisal islet of Thailand in May experiences the hottest days. However, the hot climate still doesn’t stop some explorers from landing at this magical destination. The average temperature during May is 25°C to 30°C, whereby tourists can take up sailing spree and admire the exquisite views during dusk.
The average precipitation in Koh Samui during May is 128.2 mm. The hot climate and heavy rains lead to more humidity, with averages between 62% to 92%. The sultry temperature during the days, enable tourists to experience the intoxicating nightlife of the island at its best.
Average Maximum Temperature: 30°C
Average Precipitation: 128.2 mm
Temperature Range: 30°C - 25°C
Koh Samui Weather in June

The climate remains fairly hot with less rain during June in Koh Samui. The days become longer, which encourages tourists to go for outdoor activities. Average Koh Samui temperature during June remains between 24°C to 30°C. With average precipitation being 117.6mm, the climate experiences a decline in humidity between 61% and 90%. The warm temperature and the increased motion in the sea make June the best time for surfers and sailors.
Average Maximum Temperature: 29°C
Average Precipitation: 117.6 mm
Temperature Range: 29°C - 24°C
Koh Samui Weather in July

While the remaining of Thailand is all drenched in rains, there is a lot more that one can expect from the utopian island, apart from the lovely climate in Koh Samui during July. The average temperature in July sees a drop, being between 24°C to 29°C.
However, with a decrease in average precipitation, the atmosphere becomes less humid. The sporadic showers work well to revive the splendid expanses of the island. The warmer temperature results in warmer seawater, making it an ideal season for surfing, sailing, and diving.
Average Maximum Temperature: 29.25°C
Average Precipitation: 115.2 mm
Temperature Range: 29 - 24°C
Koh Samui Weather in August

Sunny days and increased sprinkle, is what one can look up to during a vacation in August at Koh Samui. The climate is fairly sunny in this month with little drizzles in the afternoon. The average temperature in August remains between 24°C to 30°C. The average precipitation is 103.9mm, with a moderate level of humidity between 61% and 88%. Tourists opting for a vacation in August are welcomed with longer days, less crowd and balmy temperature. The climate during August encourages tourists to be out for most of the day. However, the erratic rainfalls are just an added attraction during this time, even when one decides to remain indoors.
Average Maximum Temperature: 29.25°C
Average Precipitation: 103.9 mm
Temperature Range: 30°C - 24°C
Koh Samui Weather in September

The gorgeous little islet of Thailand charms up every visitor with its beauty, as it enters in autumn months. The climate during September is mellow and mild as compared to the sunny days of July and August. The average temperature remains between 25°C to 31°C, with average precipitation being 114.9mm.
September in this islet is a spectacle to different sporty events and festivals. The pleasurable climate in September when coupled with fancy sports, delectable cuisines, and night shows, make a vacation in this heavenly isle a complete bliss. The reduced temperature and exciting marine conditions are a big temptation for adventure-enthusiasts all round the world. And while Koh Samui is a hub of tourists during this time, peace-seekers have their own share of perks for visiting this destination.
Average Maximum Temperature: 28°C
Average Precipitation: 103.9 mm
Temperature Range: 25°C - 31°C
Koh Samui Weather in October

The Koh Samui temperature during October remains a bit cloudy. The average temperature remains between 23°C to 28°C, with average precipitation rising to 246.9 mm. This is also the time when humidity lies between 65% and 93%. The romantic weather fascinates most honeymooners and couples to spend their first vacation together at Koh Samui.
A myriad of opportunities exists for couples to have the time of their life at this incredible island. No matter how much rain this magnetizing isle receives, the climate over here remains moderate without dropping too drastically.
Average Maximum Temperature: 27°C
Average Precipitation: 246.9 mm
Temperature Range: 28°C - 23°C
Koh Samui Weather in November

As November arrives, the climate over here becomes mostly wet and humid. The temperature in November remains between 23°C to 28°C. November also brings an increase in rainfall, with average precipitation rising to 407.2 mm and humidity rising to 70% and 94%.
The climate during November is never a disappointment for surfers and adventure junkies, as this is the time when waves rise to their highest level. The soothing climate over here during November comes packed with several other perks such as reduced rates on spa and massages, cheaper accommodation options and peaceful beaches with less crowd.
Average Maximum Temperature: 29°C
Average Precipitation: 407.2 mm
Temperature Range: 28°C - 23°C
Koh Samui Weather in December

With Christmas and New Year approaching, the climate over here gets back to its normal state during December. The temperature in December remains between 23°C to 27°C. December witnesses a drastic reduction in average precipitation with 234.1 mm.
With some days cloudy, some rainy and some sunny, December gives tourists a taste of all the weather. The climate in Koh Samui in December is an idyllic time for families, couples, peace-seekers, surfers, adventure enthusiasts, and basically everyone! Be it dining options, shopping sprees, or day outs, the awesome temperature in December is ideal for every kind of tourists visiting Koh Samui.
Average Maximum Temperature: 27°C
Average Precipitation: 234.1 mm
Temperature Range: 23°C - 27°C