Kunnamkulam experiences a warm and relatively consistent climate throughout the year. The winter months, January to March, bring temperatures ranging from 21-37°C, with minimal variation. As summer approaches in April and May, temperatures remain steady around 28-29°C, before gradually decreasing to average highs of 26-27°C from June to August. Autumn brings similar conditions, with September to November averaging 26-27°C. Winters return in December, mirroring the previous pattern with temperatures ranging from 20-35°C.