Because much of the Marlborough region is sheltered by high country to the west, south and in some areas to the east, its New Zealand’s sunniest region, averaging 2,400 hours of sunshine each year.
Summers are filled with warm, dry and settled weather. Typical summer daytime maximum air temperatures range from 20°C to 26°C, but occasionally rise above 30°C. High temperatures are sometimes accompanied by dry, hot winds from the northwest that create distinctive ‘wave’ cloud formations.
Winter days often start with a frost, but are usually mild overall. Late winter and early spring is normally the most unsettled time of the year. Typical winter daytime maximum air temperatures range from 10°C to 15°C.
Mean annual rainfall is around 1,200mm, with only 76 wet days on average per year; the micro-climate of the Marlborough Sounds has slightly higher rainfall.