Winters in Urayasu, Japan are cool and occasionally chilly, with temperatures ranging from -7°C to 18°C, averaging around 4°C. Spring arrives in March, bringing warmer temperatures that gradually increase throughout the season, peaking at highs of up to 24°C by April, with averages reaching 14°C. Summer months are warm to hot, with July and August often seeing temperatures soar above 30°C, averaging highs of 25-27°C. Autumn brings a return to milder conditions, with September experiencing similar temperatures to spring, before cooling down in October, which sees lows drop back to around 5°C.