Waterlooville has a temperate oceanic climate (Köppen climate classification Cfb), similar to much of southern Britain. However, the climate in the area does have mild differences between highs and lows. with Chilly winters and warm summers. In January and February average nighttime minimum temperatures drop to about to , whereas in July and August average daytime maximum temperatures are around to . Although is common in July and August, the area rarely achieves above . In fact, in the last century there has only been two days in June 1976, one day in August 1990 and 1 day in August 2003 where temperatures reached over . The highest recorded temperature was around on 10 August 2003. In contrast, the lowest recorded temperature was on 12 January 1987, where the temperature dipped to . During winter, Waterlooville tends to have more frost than nearby Portsmouth as it has less influences from the sea and is more exposed to northerly winds. However, highs in the summer are slightly warmer than Portsmouth because there is less influence of cool breezes from the English Channel as the town is more inland. Sunshine averages are typical of that across the Portsmouth area, Isle of Wight and the south-west Sussex coast of around 1800 - 2100 hours of sunshine a year, where Southwesterly winds keep the sunshine hours up between late March and mid September, the town is also protected by the South Downs.