Not a lot of direction going on in the weather for Sunday, a low pressure system is organising itself in the Tasman Sea meanwhile a large high sits north of the country. This no mans land affect could produce some fog or low cloud for the South Island, the North Island looks fairly dry overall although showers ramp up in the evening / overnight.
An early showers clear the western North Island on Sunday then expect a mix of sun and cloud for the rest of the day with light westerlies. Showers do develop about Northland from afternoon however and these gradually spread southwards during the evening and overnight. Afternoon temperatures will likely be in the high teens for Northland and Auckland, mid teens Waikato southwards.
Any early spots of rain clear the eastern North Island then expect mostly sunny weather with west to northwesterly winds. Afternoon high’s about Hawkes Bay and Gisborne may approach 18 or 19 degrees. Some high cloud starts to increase from later in the afternoon.
The West Coast of the South Island will have a mostly cloudy day with showers or perhaps some rain at times, expect some dry spells now and then also especially in the afternoon where some sun may even break through for a time. The east coast sees any early spots of rain clear then generally speaking there will be areas of sun and high cloud for the rest of the day however it may not be this simple, calm and humid conditions may lead to areas of fog or low cloud for some spots in the morning then breaking in the afternoon to some sun.
Parts of Southland and coastal Otago may see patchy rain or showers hang on till midday then slowly clearing away. Winds will be light. Afternoon temperatures reaching into the mid teens about Nelson and Marlborough, low teens for Canterbury and along the West Coast. Low double figures about Southland and Otago.
Image: Sunday 17th June 2018 3:00pm MSLP / Rain map – weathermap.co.nz