Qal'at Bishah experiences a hot desert climate, with temperatures rising rapidly in the spring months. By March, daytime highs can reach as high as 37°C, while evening lows still dip to around 14°C. Summer is scorching hot, with temperatures often soaring above 40°C from May to August, but dropping to relatively mild levels at night. Autumn brings welcome relief, with temperatures returning to spring-like levels by October. Winters are generally mild, with daytime highs rarely dipping below 20°C, although overnight lows can be quite chilly.