The best time to visit Martapura is during the dry season, which typically runs from May to October, as this period offers the most comfortable weather for exploring.During these months, you'll experience less rainfall and lower humidity, making it ideal for outdoor activities like visiting the Martapura River or exploring the diamond market without the inconvenience of heavy downpours. The drier conditions also ensure easier travel around the region, particularly if you plan to visit nearby attractions or take river tours.For travellers who prefer a slightly cooler climate and wish to avoid the peak heat, the shoulder months of May, June, September, and October are particularly pleasant.