WeatherWatch.co.nz forecasters believe Thursday and early Friday will see the best shot at rain for parched parts of the Deep South.
Large parts of Southland and Otago are drying out significantly following an especially windy and dry November.
Recent big rain makers have mostly affected regions north of Canterbury.
“While there may be a littler rain around today, there is a greater chance, we believe, of heavier rain moving in on Thursday and easing Friday” says weather analyst Richard Green.
Mr Green says the rain is related to the same low that’s prompted rain warnings for the West Coast and some parts of the North Island.
But the low will remain to the west of Fiordland.
“Well see some healthy rainfall totals but it may not make it to all the dry parts of the Deep South”.
WeatherWatch.co.nz says a few showers will linger for the weekend, mainly in coastal areas, before another high next week brings more dry, calm, weather.