Sihanoukville's weather is characterized by a relatively consistent temperature range throughout the year, with temperatures rarely dipping below 20°C or rising above 34°C. The coolest months are January and December, with average highs in the mid-20s to low 30s Celsius, while the warmest months are April, May, June, and July, with average highs in the high 20s to mid-30s Celsius. March is slightly warmer than the other cooler months, but still relatively mild. The temperature range remains stable from September to November, with average highs around 27-28°C. Overall, Sihanoukville's climate is warm and humid year-round, with minimal seasonal variation.