Wellington's weather is characterized by mild winters with occasional cold snaps, where temperatures can drop as low as -5°C in January and December. Spring brings gradual warming, with March being the mildest month so far, averaging around 8°C. Summer months of June to August are warmest, with July being the hottest, often reaching up to 38°C. Autumn is cooler than summer, but still mild, with October experiencing a slight drop in temperature.