Weather in Koh Samet
Rayong · East
Here you can see how warm it gets in Koh Samet month by month, how much rain falls and when the best time to visit is. The figures are long-term averages from the Thai weather service, not a forecast.
Koh Samet is the small island off the coast of Rayong province. Koh Samet has no weather station of its own with long-term figures. The figures come from the Rayong station, about 13 km away.
Koh Samet through the yearTemperature and rain
All values as a table
| Month | Koh Samet (East) |
|---|---|
| Jan | 32° / 22° at night · 21 mm |
| Feb | 32° / 24° at night · 36 mm |
| Mar | 33° / 26° at night · 70 mm |
| Apr | 34° / 27° at night · 82 mm |
| May | 34° / 27° at night · 199 mm |
| Jun | 33° / 27° at night · 165 mm |
| Jul | 32° / 26° at night · 172 mm |
| Aug | 32° / 26° at night · 132 mm |
| Sept | 32° / 25° at night · 255 mm |
| Oct | 32° / 24° at night · 194 mm |
| Nov | 33° / 23° at night · 51 mm |
| Dec | 32° / 21° at night · 6 mm |
Source: Thai Meteorological Department (TMD), climate averages 1981 to 2010, rounded. Temperature = average daily high, rain = monthly total. Individual years can differ considerably.
Weather in Koh Samet month by month
Koh Samet in January
In January, daytime temperatures in Koh Samet average 32 °C, with 22 °C at night. With around 21 millimetres of rain, January is very dry. It is part of the best time to visit.
Koh Samet in February
In February, daytime temperatures in Koh Samet average 32 °C, with 24 °C at night. With around 36 millimetres of rain, February is dry. It is part of the best time to visit.
Koh Samet in March
In March, daytime temperatures in Koh Samet average 33 °C, with 26 °C at night. With around 70 millimetres of rain, March is fairly dry with occasional showers.
Koh Samet in April
In April, daytime temperatures in Koh Samet average 34 °C, with 27 °C at night. With around 82 millimetres of rain, April is fairly dry with occasional showers.
Koh Samet in May
In May, daytime temperatures in Koh Samet average 34 °C, with 27 °C at night. With around 199 millimetres of rain, May is a rainy season month.
Koh Samet in June
In June, daytime temperatures in Koh Samet average 33 °C, with 27 °C at night. With around 165 millimetres of rain, June is a rainy season month.
Koh Samet in July
In July, daytime temperatures in Koh Samet average 32 °C, with 26 °C at night. With around 172 millimetres of rain, July is a rainy season month.
Koh Samet in August
In August, daytime temperatures in Koh Samet average 32 °C, with 26 °C at night. With around 132 millimetres of rain, August is a rainy season month.
Koh Samet in September
In September, daytime temperatures in Koh Samet average 32 °C, with 25 °C at night. With around 255 millimetres of rain, September is very wet. This is the wettest month of the year.
Koh Samet in October
In October, daytime temperatures in Koh Samet average 32 °C, with 24 °C at night. With around 194 millimetres of rain, October is a rainy season month.
Koh Samet in November
In November, daytime temperatures in Koh Samet average 33 °C, with 23 °C at night. With around 51 millimetres of rain, November is dry. It is part of the best time to visit.
Koh Samet in December
In December, daytime temperatures in Koh Samet average 32 °C, with 21 °C at night. With around 6 millimetres of rain, December is very dry. It is part of the best time to visit.
Frequently asked questions about the weather in Koh Samet
When is the best time to visit Koh Samet?
The best time to visit Koh Samet is November to February. In these months an average of 6 to 51 millimetres of rain falls, and daytime temperatures reach 32 to 33 °C.
When is the rainy season in Koh Samet?
On average, more than 100 millimetres of rain a month fall in Koh Samet from May to October. The most rain falls in September, with around 255 millimetres, the least in December, with around 6 millimetres.
When is it hottest in Koh Samet?
It is hottest in April and May, with an average of 34 °C by day. The coolest nights are in December, at around 21 °C.