WeatherWatch weather analyst Richard Green said this morning's showers were very localised and lasted for about half an hour.
The showers may have looked impressive, but they were expected to be short-lived - and they had only brought about 5mm of rain.
That was well short of the 50-100mm needed to alleviate the dry soil conditions.
"It's just been patchy showers this morning. It's a start, but not enough," Mr Green said.
"We'd need about another 10 days like today to alleviate the situation."
Mr Green said all the moisture would evaporate over the next few days.
"And by Friday it will be like it never fell, which is not great either."
There would not be enough rain for flash floods, and barely enough to top up water tanks
Mr Green said farmers had been in touch to say they were happy to see the rain.
"But they're more frustrated because it looks more ominous than what it's actually delivering, so it is disappointing for farmers.
"They want to see more and I would say that we're looking at more droughts being declared over the next week to 10 days by the Government."
Waikato and Hawkes Bay were the next likely candidates for droughts to be declared - with Wairarapa and parts of Rotorua and Canterbury also potential candidates.
Mr Green said the dry spell would continue for at least the next fortnight, with pockets of showers but nothing significant.
He said the anticyclones which had been blocking potential rain-makers were expected to last until the end of the month, which was not good news for farmers.
Central, northern and eastern parts of the country could get some more significant rain about a fortnight from now - but long-range models in the last month had often promised rain but failed to deliver.