Kitakyushu's winters are mild, with temperatures rarely dipping below freezing and averaging around 5°C in January. Spring arrives in March, bringing warmer temperatures that gradually rise throughout the month, with averages reaching up to 12°C. Summer months from June to August are hot and humid, with July often seeing temperatures reach as high as 36°C. Autumn brings a welcome respite from the heat, with September averaging around 25°C before cooling down into the mild winter temperatures that return in November.