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Oneroa Weather in December

December in Oneroa brings pleasant temperatures, with daytime highs of 21°C (70°F) and nights around 16°C (61°F). Quite a bit of rainfall is expected, around 98 mm (3.9 in), so pack an umbrella.

Rainfall in Oneroa in December

Based on our climate data of the past 30 years, about 12 days of rain are anticipated, with 98 mm (3.9 in) on average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Oneroa in December

If you're visiting Oneroa in December, expect excellent temperatures with highs of 21°C (70°F) and overnight lows of 16°C (61°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 16°C (61°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Oneroa in December

The days are predominantly sunny, with an estimated total of around 198 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April and December typically offer the best weather for Oneroa.

Oneroa Temperature in December

Min Temperature

16°C (61°F)

Max Temperature

21°C (70°F)

Chance of Rain

41%

Precipitation

98 mm (3.9 in)

Rainy days

12 days

Humidity

77% *

Sunshine

198 hours *

Percentage Sunshine

56% *

* Data from: Auckland, New Zealand (32 KM, 20 Miles).

Oneroa Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Oneroa - and find the best time to visit.

January

23°C (73°F)View January → February

23°C (73°F)View February → March

22°C (72°F)View March → April

20°C (68°F)View April → May

18°C (64°F)View May → June

16°C (61°F)View June → July

15°C (59°F)View July → August

15°C (59°F)View August → September

16°C (61°F)View September → This monthOctober

18°C (64°F)View October → November

19°C (66°F)View November → December

21°C (70°F)View December →

Best Time to Visit Oneroa →

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Oneroa typically stay consistent throughout December, with daily highs averaging around 21°C (70°F). Nights are pleasant, with lows around 15°C (59°F).

Average temperatures in December

Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in December

Historical weather records for Oneroa in December

Browse day-by-day weather records for Oneroa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Oneroa historical weather extremes in December

Our historical data for Oneroa spans 1994 to 2025, revealing these weather extremes.

Oneroa recorded its highest December temperature of 28°C (82°F) on December 22, 2010.
On December 4, 2004, Oneroa saw its coldest December day with temperatures maxing out at 15°C (59°F).
Nighttime temperatures dropped to 8°C (46°F) on December 10, 2006, marking the coldest December night on record.
The wettest December day on record brought 53 mm (2.1 in) of precipitation to Oneroa (December 24, 2008).

Best Places in New Zealand in December

Find out more about the weather in New Zealand and which places have the best travel conditions in this month. See all of New Zealand in December →

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in December: blue is cold, red is hot.

Marker color shows total monthly precipitation in December: pale blue is dry, deep blue is wet.

What to Wear in Oneroa in December

Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.