Dong Hoi's climate is characterized by a relatively consistent tropical savanna climate. Summer months from May to August are hot and humid with temperatures often reaching above 35°C, while the cooler winter months of December and January see temperatures ranging between 18-22°C. Spring brings warm weather in March and April, with average highs around 25°C and lows around 20-22°C. Autumn is similarly mild, with temperatures gradually decreasing from September to November, averaging around 24-28°C during the day and 18-20°C at night. The region experiences a distinct wet season from October to December, with highest rainfall occurring in November.