Overview: Sam Roi YotSam Roi Yot (Thailand) in general has a tropical climate. Temperatures during the day are in the range from 30 °C (86 °F) in December to 34 °C (94 °F) in April. Temperatures during the night go from 22 °C (71 °F) in January to 26 °C (78 °F) in April. The highest sea temperatures in Sam Roi Yot are in May with 30 °C (86 °F) and the lowest in January with 27 °C (81 °F). The least rainy month in Sam Roi Yot is December with its 2 days of rain, the rainiest month is October, when it rains 18 days.