Hikkaduwa's climate is characterized by a relatively consistent year-round warm weather, with temperatures rarely dipping below 18°C or rising above 36°C. The dry season spans from January to April, with average highs reaching the mid-30s Celsius during this period. May and June are transitional months, marking the beginning of the southwest monsoon, which brings slightly cooler temperatures in the mornings but still warm days. From July to September, the southwest monsoon dominates, bringing a slight drop in temperature and increased humidity. The dry season returns from October to December, with average highs returning to the mid-30s Celsius.