Winters in Shiroi, Japan are quite chilly, with temperatures often below freezing in January and December, averaging around 5-7°C. As spring approaches, the mercury rises steadily, reaching average highs of 12°C by March and 14°C by April, with warmer days occasionally pushing into the mid-twenties. Summer brings scorching heatwaves, with July and August often seeing temperatures soar above 35°C, but these are short-lived and followed by a welcome dip in temperature towards autumn. Autumn itself is mild, with September's average high of 22°C giving way to cooler days as November arrives, averaging around 13°C.