Harper experiences a tropical climate with distinct wet and dry seasons. The wet season typically runs from May to October, with significant rainfall occurring throughout these months, while the dry season falls between November and April, characterized by minimal precipitation. Temperatures remain relatively consistent year-round, averaging around 25°C in March, but can dip slightly during the dry season. Daytime temperatures often reach highs of 30-32°C, while nighttime temperatures range from 20-23°C. The warmest months are typically May and June, with average high temperatures reaching up to 33°C.