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 snowfall in December
- Average snowfall 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
December
Weather in December
Temperature
As November transitions into December, the average high-temperature rests at a still comfortable 19.6°C (67.3°F), maintaining a close resemblance to the previous month. During December in Swannanoa, the average low-temperature is recorded at a fresh 10.2°C (50.4°F).Humidity
In December, the average relative humidity is 74%.Rainfall
In Swannanoa, New Zealand, in December, during 10.2 rainfall days, 27mm (1.06") of precipitation is typically accumulated. In Swannanoa, during the entire year, the rain falls for 114.3 days and collects up to 300mm (11.81") of precipitation.Snowfall
January through May, October through December are months without snowfall in Swannanoa.Daylight
December has the longest days of the year, with an average of 15h and 18min of daylight.On the first day of December in Swannanoa, sunrise is at 5:44 am and sunset at 8:53 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 9:13 pm NZDT.
Sunshine
With an average of 10.4h of sunshine, December has the most sunshine of the year in Swannanoa.UV index
In Swannanoa, the average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 4 in December converts into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Swannanoa in December?
What is the average humidity in December in Swannanoa?
How much does it rain in Swannanoa in December?
When it does not snow in Swannanoa?
When are the longest days in Swannanoa?
What is the average length of the day in December in Swannanoa?
What time are sunrise and sunset in December in Swannanoa?
What month has the most sunshine in Swannanoa?
How long on average sun shines in December in Swannanoa?
What is the UV index intensity in December in Swannanoa?
Average temperature in December
Swannanoa, New Zealand
- Average high temperature in December: 19.6°C
The warmest month (with the highest average high temperature) is January (21.3°C).
The month with the lowest average high temperature is July (10.3°C).
- Average low temperature in December: 10.2°C
The month with the highest average low temperature is January (11.9°C).
The coldest month (with the lowest average low temperature) is July (3.8°C).
Average pressure in December
Swannanoa, New Zealand
- Average pressure in December: 1011.9mbar
The month with the highest atmospheric pressure is March (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in December
Swannanoa, New Zealand
- Average wind speed in December: 14.7km/h
The windiest month (with the highest average wind speed) is January (15.3km/h).
The calmest month (with the lowest average wind speed) is August (12.4km/h).
Average humidity in December
Swannanoa, New Zealand
- Average humidity in December: 74%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is January (70%).
Average rainfall in December
Swannanoa, New Zealand
- Average rainfall in December: 27mm
The wettest month (with the highest rainfall) is October (38mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in December
Swannanoa, New Zealand
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is October (12.5 days).
The month with the least rainy days is May (8 days).
Average snowfall in December
Swannanoa, New Zealand
- Average snowfall in December: 0mm
The month with the highest snowfall is August (5mm).
The months with the least snowfall are January, February, March, April, May, October, November and December (0mm).
Average snowfall days in December
Swannanoa, New Zealand
- Average snowfall days in December: 0 days
The months with the highest number of snowfall days are June and August (0.3 days).
The months with the least snowfall days are January, February, March, April, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Swannanoa, New Zealand
- Average daylight in December: 15h and 2min
The month with the longest days is December (Average daylight: 15h and 18min).
The month with the shortest days is June (Average daylight: 9h and 0min).
- Average sunshine in December: 10h and 2min
The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 6min).
Average sunshine days in December
Swannanoa, New Zealand
- Average sunshine days in December: 18.3 days
The month with the most sunshine days is May (21.2 days).
The month with the least sunshine days is November (17.3 days).
Average UV index in December
Swannanoa, New Zealand
- Average UV index in December: 4
The month with the highest UV index is January (UV index 5).
The months with the lowest UV index are April, May, June, July, August and September (UV index 3).
Average cloud cover in December
Swannanoa, New Zealand
- Average cloud cover in December: 40
The month with the most cloud cover is June (Cloud cover 43).
The months with the least cloud cover are January, February, March and May (Cloud cover 37).
Average visibility in December
Swannanoa, New Zealand
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June, July and December (10km).
The months with the lowest visibility are May, August, September, October and November (9km).
