"We see showers developing quite early in Hawke's Bay on Tuesday but they do clear south of Wairoa in the afternoon, and everywhere else by Tuesday evening."
The southwesterly change may cause strong gales in some exposed places, he warned.
Temperatures will dip on Tuesday, but won't be "cold by any stretch of the imagination", with a maximum of 19C and minimum of 8C overnight.
Best said temperatures would start to rise again on Thursday, and fine weather by Friday should last through the weeekend.