With the start of the Asia/Oceania round one Davis Cup tie between New Zealand and South Korea, outdoors in Seoul at the Olympic Tennis courts in just four days' time, there's going to have to be a big change in the weather.

A couple of snapshots from the team captain Alistair Hunt and team physio Michael Heenan show that playing tennis in Seoul outdoors at present is not possible.

The matches are scheduled to start on Friday and be completed Sunday with no indoor alternative.

The long range weather forecast for Seoul is for the weather to improve, however the temperature in the South Korean capital at 7am this morning was -4 degrees with a potential low of -10 this evening.

There is no low temperature which can postpone matches, however a Davis Cup referee can use their judgement regarding playing conditions.

Tennis NZ chief executive Steve Johns is keeping an eye on conditions from afar as the New Zealand players arrive for the tie.

"We'll keep in close contact with team captain Alistair Hunt and the ITF regarding conditions. There's still a few days remaining, but both teams will want to practice on the match court," said Johns.

It will be the 10th contest between the two sides with New Zealand leading 7-2 . The New Zealand team is Finn Tearney, Rubin Statham, Michael Venus and Artem Sitak with Hunt as captain.

The Korean team features world number 66 Hyeon Chung. The winner of the tie will take on top seeds India in an Asia/Oceania Group I second round in July.