The Eastern Bay of Plenty town was the country's sunniest spot last year, 2792 sunshine hours, ahead of New Plymouth (2668 hours) and Gisborne (2483 hours).
Takaka and Martinborough were the only locations where below normal sunshine was observed, receiving 89 per cent and 67 per cent of normal sunshine respectively.
The summary also showed that of the six main centres in August, Auckland was the warmest, wettest and cloudiest, and Christchurch was the coolest and driest.
Christchurch also recorded the highest temperature of the month, with a reading of 23.6C taken at Riccarton on August 2.
At the extreme opposite of the thermometer, a record low of minus 7 was observed at Middlemarch, Otago, two days later.
On that same day, the highest level of rainfall in a single day occurred at Tologa Bay - a total of 157.2mm.
The report described the month as being characterised by "anomalously high pressure" south of Australia extending over and around New Zealand, which brought about strong southwesterly flow anomalies to the country.
Rainfall during August was highly variable across the country, while dry conditions prevailed in the Waikato, Bay of Plenty, and the north of the West Coast, which received below normal levels of rainfall.
Conditions were even drier in Tasman, Nelson, Marlborough and coastal Canterbury where rainfall levels were considered "well below normal", or below 50 per cent of normal.
As a result, several sites in these regions experienced near-record low rainfall totals for the month.
Near average temperatures observed in July meanwhile continued into August, with the majority of the country characterised again by near average temperatures.
Nationwide, only a handful of stations reported above average mean temperatures for August.
The nationwide average temperature in August was 8.7C, only 0.1C above the 1971-2000 August average from Niwa's seven station temperature series which drew on records stretching back to 1909.
Niwa's climate outlook for the next three months, released yesterday, showed temperatures were likely to average or above average in the North Island and top of the South Island, rainfall levels were likely to be normal, and the chances of an El Nino system developing over the period were lessening.
Walking on sunshine
Whakatane: 1793 (sunshine hours so far this year)
Tauranga: 1622 hours
Nelson: 1557 hours
Lake Tekapo: 1554 hours
For the record
The highest temperature was 23.6C, observed at Christchurch (Riccarton) on August 2.
The lowest temperature was -7C, observed at Middlemarch, Otago, on August 4.
The highest one-day rainfall was 157.2 mm, recorded at Tolaga Bay on August 4.
The highest wind gust was 189 km/hr, observed at Cape Turnagain on August 8.
