Fearful visitors are told they can log location and travel movements with a database accessed by the New Zealand police and urged to let friends and family know their plans in case of poor mobile phone reception.
The advisory goes on to mention freezing temperatures overnight, short sunburn times during the day and increased risk of asthma attacks.
Ex-pat Kiwi and coach of the Welsh national rugby team Warren Gatland chimed in with a warning about travel times.
"New Zealand is a beautiful but vast country - it's really easy to underestimate how long journeys can take so I'd encourage people to allow plenty of time to get to matches so you don't miss a minute of the rugby or take risks on the roads."
The advice was issued as part of the FCO's 'Be on the ball campaign', aimed at preventing problems among travelling sports fans.
Perhaps reinforcing a stereotype about the Brits, it contains one last piece of advice for fans on game days.
"Is there enough time for that last pint? Make sure you arrive at the stadium with plenty of time to spare. Expect queues and security checks."