Shiraoka, Japan experiences a temperate climate with distinct seasonal variations. Winters are chilly, with temperatures often below freezing from January to March, but can occasionally rise to mild highs in February and December. As spring approaches, temperatures gradually warm up, reaching averages above 14°C by April and May, marking the onset of a hot summer. Summer months (June to August) bring sweltering heat, with temperatures frequently soaring above 30°C, while autumn returns cooler conditions, with temperatures dropping back down into single digits from October to November.