On a wet day for parts of the North Island, we have a big change in our wind flow – plenty of easterly quarter winds after a couple of months of plenty of westerlies.

The easterlies are caused by two things – a low in the North Island and high pressure in the lower South Island.

Rain will fall along eastern areas of the North Island, and even as far south as North Canterbury.

This low hangs around until Wednesday with another Tasman Sea low forming by the end of the week.