If you’re not a big fan of high humidity and high overnight temperatures then chances are you’re in for a week of restless nights.

As of today a north’west flow will spread across the North Island bringing humid air from the tropics.  Yesterday daytime highs reached 30 degrees in Napier and Hastings and today more hot air is expected.

In Auckland and other northern centres temperatures will most likely reach the low to mid 20s however coupled with high humidity it will feel more like the late 20s.

Overnight lows in Auckland and Whangarei should remain in the late teens this week.

A large area of low pressure is forming in the Tasman Sea and will take the entire working week to move across the country.  Heavy rain is expected in the bottom half of the North Island and about the north west ranges of the South Island.

The cold weather that’s been affecting the South Island’s east coast over the past day or so will be back again today.  Heaters and fires will be going as daytime highs from Christchurch to Dunedin struggle to reach double digits.  The high for Christchurch today is just 11.

However later in the week a northerly flow should develop, bringing warmer temperatures back to the area.