Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The initiation of December records an average high-temperature of an enjoyable 16°C (60.8°F), displaying a near consistency with the previous month. Greymouth observes a minimal variance in temperature, with a consistent average low of 11.2°C (52.2°F) during the nights of December.Humidity
The months with the highest humidity are January, April, August, October through December, with an average relative humidity of 79%.Rainfall
In Greymouth, in December, it is raining for 5.6 days, with typically 29mm (1.14") of accumulated precipitation. Throughout the year, in Greymouth, there are 61 rainfall days, and 259mm (10.2") of precipitation is accumulated.Daylight
With an average of 15h and 12min of daylight, December has the longest days of the year.On the first day of December in Greymouth, sunrise is at 5:52 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 9:15 pm NZDT.
Sunshine
December has the most sunshine of the year, with an average of 9.8h of sunshine.UV index
The months with the highest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 during December translates into the following guidance:
Exercise prevention - Protecting skin and eyes from harm is required. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What is the temperature in December in Greymouth?
What are the most humid months in Greymouth?
What is the average humidity in December in Greymouth?
How much does it rain in Greymouth in December?
When are the longest days in Greymouth?
What is the average length of the day in December in Greymouth?
When are sunrise and sunset in December in Greymouth?
What month has the most sunshine in Greymouth?
How long on average sun shines in December in Greymouth?
What is the month with the highest UV index in Greymouth?
What is the UV index intensity in December in Greymouth?
Average temperature in December
Greymouth, New Zealand
- Average high temperature in December: 16°C
The warmest month (with the highest average high temperature) is February (17.6°C).
The month with the lowest average high temperature is July (9.5°C).
- Average low temperature in December: 11.2°C
The month with the highest average low temperature is February (12.5°C).
The coldest month (with the lowest average low temperature) is July (5.7°C).
Average pressure in December
Greymouth, New Zealand
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is March (1017.5mbar).
The month with the lowest atmospheric pressure is September (1011.9mbar).
Average wind speed in December
Greymouth, New Zealand
- Average wind speed in December: 11.8km/h
The windiest month (with the highest average wind speed) is October (13km/h).
The calmest month (with the lowest average wind speed) is March (10.7km/h).
Average humidity in December
Greymouth, New Zealand
- Average humidity in December: 79%
The months with the highest relative humidity are January, April, August, October, November and December (79%).
The months with the lowest relative humidity are June and July (77%).
Average rainfall in December
Greymouth, New Zealand
- Average rainfall in December: 29mm
The wettest month (with the highest rainfall) is November (40mm).
The driest month (with the least rainfall) is June (9mm).
Average rainfall days in December
Greymouth, New Zealand
- Average rainfall days in December: 5.6 days
The month with the highest number of rainy days is October (6.1 days).
The month with the least rainy days is February (3.5 days).
Average daylight in December /
Average sunshine in December
Greymouth, New Zealand
- Average daylight in December: 15h and 1min
The month with the longest days is December (Average daylight: 15h and 12min).
The month with the shortest days is June (Average daylight: 9h and 6min).
- Average sunshine in December: 9h and 5min
The month with the most sunshine is December (Average sunshine: 9h and 48min).
The months with the least sunshine are June and July (Average sunshine: 5h and 48min).
Average sunshine days in December
Greymouth, New Zealand
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is March (26.3 days).
The month with the least sunshine days is October (21.7 days).
Average UV index in December
Greymouth, New Zealand
- Average UV index in December: 4
The months with the highest UV index are January, February, March, November and December (UV index 4).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 3).
Average cloud cover in December
Greymouth, New Zealand
- Average cloud cover in December: 44
The month with the most cloud cover is October (Cloud cover 48).
The month with the least cloud cover is February (Cloud cover 37).
Average visibility in December
Greymouth, New Zealand
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Greymouth, New Zealand
Weather forecast for your location
2. Allow the app to use your location
