Cold wet weather on the cards over the weekend

Don’t put away the scarves and beanies yet, as cold and wet weather looks set to return over the weekend.

The country has been sitting under a ridge of high pressure over the past week that has brought stable conditions, clear skies, and cold nights.

However, a series of cold fronts will move on to the South Island from tomorrow afternoon, bringing rain and colder temperatures.

High pressure eases away this week as fronts move up the country from the South.
Behind these fronts, a significant drop in temperature.
For example:
Ashburton
Sat 17°C
Sun 9°C pic.twitter.com/lt221V6hYw

— MetService (@MetService) August 25, 2023

MetService meteorologist Ngaire Wotherspoon said these fronts would be followed by a showery southwest flow.

“We should experience significantly cooler temperatures than we have been having.”

The fronts will be make their way on to the North Island on Sunday, weakening as they move north.

“We should expect rain for the south of the South Island - Otago, Southland - it’s going to be typical winter weather,” Wotherspoon said.

“It’s not extreme enough to warrant any weather warnings or watches.”

Tomorrow, North Island residents should experience similar weather as the past few days, but showers are expected to develop on Sunday.

“On Monday, the front will move away but we will stuck in the showery southwesterly flow.”

Wotherspoon said there is expected to be a marked difference between daytime temperatures in the South Island before and after the cold southwesterly front moves in.

“Daytime highs between 13 to 17 degrees on Saturday,” said Wotherspoon, “but between 8 and 15 degrees in the northern parts like Nelson.”

“Invercargill will go from a daytime high of 14 on Saturday to 8 on Sunday.”