Greymouth Weather in December
Greymouth in December averages 19°C (66°F) during the day and 12°C (54°F) at night. December is part of the rainy season, so frequent rainfall is typical.
Rainfall in Greymouth in December
Greymouth is in the rainy season in December, with rain on around 20 days and an average of 255 mm (10 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Greymouth in December
December in Greymouth brings pleasant temperatures, with highs of 19°C (66°F) and nights around 12°C (54°F). Conditions are often most pleasant around the middle of the day. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Greymouth in December
Enjoy a sunny month with about 197 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February typically offers the best weather for Greymouth.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Greymouth's climate page.
Greymouth Temperature in December
Min Temperature
12°C (54°F)
Max Temperature
19°C (66°F)
Chance of Rain
65%
Precipitation
255 mm (10 in)
Rainy days
20 days
Humidity
82% *
Sunshine
197 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Greymouth typically stay consistent throughout December, with daily highs averaging around 19°C (66°F). Nights are cool, with lows around 11°C (52°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 for Greymouth in December
Browse day-by-day weather records for Greymouth spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Greymouth historical weather extremes in December
Based on 24 years of weather observations (2001-2025), these are the most extreme conditions recorded in Greymouth.
- Greymouth recorded its highest December temperature of 26°C (79°F) on December 31, 2011.
- On December 4, 2004, Greymouth saw its coldest December day with temperatures maxing out at 12°C (54°F).
- The coldest night in December in Greymouth was on December 22, 2006, with a minimum of 4°C (39°F).
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 →
perfect weather
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tolerable
unpleasant
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What to Wear in Greymouth 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. It's going to pour! Pack a good poncho and prepare for very wet conditions. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Greymouth in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Greymouth's climate page.
Temperature Rainfall Sunshine Humidity
See the full Greymouth climate overview or explore weather in New Zealand.
