Choshi's winters are mild, with temperatures often fluctuating between freezing and mild, averaging around 5-8°C. Spring brings gradual warming, with March and April seeing significant increases in temperature, peaking at averages of 12-14°C. Summer months are warm to hot, with July and August being the hottest, reaching highs of up to 32-34°C. Autumn is characterized by a return to milder temperatures, with October experiencing a cooling trend before November's slight warming. Winters again set in, mirroring the pattern seen at the start of the year, with December temperatures averaging around 7°C.