October to February (Winter) is the best time to visit Devikulam. It is considered as a retreat resort for weekend getaways. The climatic conditions are mildly warm and pleasant all year round, thus making the destination a year-round tourist destination. The summers are warm with a maximum temperature of 20 degrees Celsius while winters are maximum of 10 degrees and the minimum of 0 degrees Celsius. The destination receives a substantial amount of rainfall throughout the year making Devikulam a cool place to travel around the year.
| Month | High/Low (°C) | Rain |
|---|---|---|
| January | 26°/ 15° | 5 days |
| February | 27°/ 15° | 4 days |
| March | 27°/ 16° | 17 days |
| April | 28°/ 18° | 22 days |
| May | 29°/ 19° | 27 days |
| June | 26°/ 19° | 19 days |
| July | 24°/ 18° | 27 days |
| August | 22°/ 17° | 30 days |
| September | 24°/ 17° | 30 days |
| October | 24°/ 17° | 30 days |
| November | 24°/ 16° | 25 days |
| December | 24°/ 16° | 14 days |