Winters in Saiki are cold and unpredictable, with temperatures often dropping below freezing but occasionally rising above 20°C. Spring is a gradual warming period, with March seeing the first significant increase in temperatures, eventually reaching averages of around 16°C by April. Summers are hot and humid, with July and August being the warmest months, while September brings a slight cooling trend. Autumn is mild, with October's temperature drop signaling the start of the cooler season. The year ends with another cold winter period, similar to January's conditions.