Sam Roi Yot Temperature by Month

Sam Roi Yot in Prachuap Khiri Khan Province, Thailand enjoys a stable climate, with daytime temperatures staying close to 32°C (90°F) throughout the year. Explore the full monthly breakdown below.

Year-round, Sam Roi Yot experiences a consistently very warm climate. Maximum daytime temperatures range from a very warm 33°C (91°F) in April to a comfortable 30°C (86°F) in the coolest month, December. Nighttime temperatures range from 27°C (81°F) in April to 24°C (75°F) in December.

The chart below illustrates the average maximum day and minimum night temperatures in Sam Roi Yot by month:

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. April, the warmest month, sees 240 hours of sunshine.

The chart below shows the average temperature throughout the year:

Sam Roi Yot's average annual maximum temperature is 32°C (90°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Sam Roi Yot, December is the coolest month, with average highs of 30°C (86°F) and humidity around 67%, considered high. In April, the warmest month, temperatures average 33°C (91°F) with 73% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Sam Roi Yot this rarely lasts long on the ground.

For more on Sam Roi Yot's weather, including monthly rainfall, sunshine hours, and humidity, visit our Sam Roi Yot climate page.