Surfers will be dusting cobwebs off boards and keeping an eye on west coast beaches the length of the country this week as strong westerly winds pick up.
The MetService said after an absence of many weeks the westerlies are back, with winds over the country expected to generate large seas on western coasts.
The service warned that beaches with onshore winds would be likely to have sweeping waves and rip currents.
Nelson weather forecaster John Mathieson said fine weather was generally forecast for the region but it would experience the effects of the westerly weather.
It was expected to be fine on Wednesday away from the western ranges with gusty bouts of southwest or west winds.
Thursday was expected to bring fresh gusty southwest winds falling lighter for a time in the afternoon.
Showers were expected over the ranges with a risk of one or two brief isolated heavy showers elsewhere early to mid-afternoon, Mr Mathieson said.
Temperatures were expected to get milder towards evening as westerly winds freshened.
Friday's forecast was for mid and high cloud cover rolling in from the western ranges from mid-morning onwards.
Mr Mathieson said Friday was expected to be dry in eastern areas with rain expected later about the western ranges and far northdhwest.
And the weekend? Snow down to 800 metres inland with windy west to southwest air and passing squally showers ntsG brieflynte towards the coasts, he said.
Early morning thunderstorms could occur about nearby hills south through northwest, clearing to isolated showers late morning onwards with blustery, chilly southwest winds.
Mr Mathieson said Sunday was looking better with forecast fine weather away from the ranges and southwesterlies decreasing.