Summer, North Island new Zealand, swell and region

Generally the south island seems to have the best swell... Or in the north then Raglan or Taranaki is best for winter. However, as we're getting closer to summer I heard that Northland can be good.
Maybe I heard wrong?
Since I've seen here it's been nothing but southerly swells. When or will these northerly swells arrive?
Many spots too far to regularly get to without a 4x4 too.
Tropical cyclones only happen about once a year so I guess the reputation can't be coming from that? And I assume the Gisborne area is similar...?
Whats going on?!
Maybe I heard wrong?
Since I've seen here it's been nothing but southerly swells. When or will these northerly swells arrive?
Many spots too far to regularly get to without a 4x4 too.
Tropical cyclones only happen about once a year so I guess the reputation can't be coming from that? And I assume the Gisborne area is similar...?
Whats going on?!