But by later today a ridge of high pressure is due to arrive, bringing sunshine to much of the country.
That warmer weather should be more regular earlier than last summer, Weatherwatch's Philip Duncan said. A weak El Nino pattern was emerging which would mean the prospect of summer reaching our shores in time for Christmas.
"This summer, generally speaking, has the ingredients to be both drier and warmer."
The long range forecast featured balmy, hot days and a bit of rain which would be good news for both holidaymakers and farmers alike, he said.
Until Christmas, there would be some variety. "We're going to have everything thrown at us this month and the next month with no strong weather pattern emerging at the moment."
In September, winds and rain battered the west coast while eastern regions basked in sunshine. The mercury hit 25.5C in Waiau one day and sunshine hours were up 125 per cent on average.
In the country's main cities, Christchurch was the driest and coolest; Wellington was the sunniest, Hamilton cloudiest, Tauranga warmest, and Auckland the wettest.