Winters in Havant are cool and occasionally chilly, with temperatures frequently dropping below 0°C. Spring brings a gradual warming trend, with March often marking the beginning of more consistent mild days. Summer months, particularly June and July, experience warm to hot conditions, with temperatures sometimes reaching 30°C. Autumn is generally milder than winter, but can still be cool, especially in October. The temperature range remains relatively stable throughout the year, rarely dipping below -5°C or rising above 28°C.