A weak ridge over the North Island moves slowly eastwards on Thursday and Friday as a trough approaches from the Tasman Sea. The trough crosses the area on Saturday, followed by another ridge on Sunday.
Wednesday: Southwest 15 knots, rising to 20 knots this afternoon, then easing to 15 knots again overnight. Sea becoming moderate this afternoon, then easing overnight. Fine. Thursday: Southwest 15 knots, easing to westerly 10 knots in the morning. Becoming northwest 15 knots in the afternoon. Sea slight. Cloudy periods.
Outlook until midnight Sunday: Friday: Northwest rising to 20 knots in the morning and 25 knots in the afternoon. A few showers developing, turning to rain later. Saturday: Northerly 25 knots, changing southwest 20 knots late morning. Rain clearing and fine breaks increasing. Sunday: Easing to southwest 15 knots. Mainly fine.
Swell forecast to midnight Sunday: Northerly half a metre or less, rising to 1 metre Friday then easing to half a metre Saturday.