November to February is the best time to visit Chanthaburi as it's neither too hot, nor too rainy.
| Month | High/Low (°C) | Rain |
|---|---|---|
| January | 33°/ 22° | 1 days |
| February | 33°/ 22° | 3 days |
| March | 33°/ 25° | 14 days |
| April | 33°/ 25° | 22 days |
| May | 33°/ 26° | 26 days |
| June | 31°/ 25° | 26 days |
| July | 31°/ 25° | 25 days |
| August | 29°/ 25° | 30 days |
| September | 30°/ 24° | 28 days |
| October | 32°/ 24° | 24 days |
| November | 33°/ 23° | 5 days |
| December | 32°/ 21° | 0 days |