Suphan Buri experiences a hot and humid climate year-round, with temperatures rarely dipping below 15°C or rising above 39°C. The coolest months are January and December, with average temperatures ranging from 25-28°C, while the warmest months are April to June, with averages between 29-31°C. March and May are also relatively hot, with averages around 30-31°C. The temperature fluctuations throughout the year are generally mild, with minimal seasonal variation. Overall, the region enjoys a stable and tropical climate.