Invercargill's climate is marked by cool winters and mild summers. The winter months of May, June, and July are the coolest, with temperatures rarely rising above 15°C and often dropping below freezing point. Spring and autumn are relatively mild, with temperatures gradually warming up in September and October before cooling down again in November and December. Summer months from January to March bring some warmth, but temperatures still average around 14°C. The warmest periods of the year occur briefly in late spring and early summer, while the coldest periods are in mid-winter.