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
Brightwater marks the arrival of December with an average high-temperature of a still refreshing 18.9°C (66°F), hardly different from November's 16.7°C (62.1°F). Throughout the month of December, Brightwater witnesses an average temperature of 10.4°C (50.7°F).Humidity
In Brightwater, the average relative humidity in December is 77%.Rainfall
December is the month with the most rainfall. Rain falls for 14.5 days and accumulates 68mm (2.68") of precipitation.Snowfall
January through June, August through December are months without snowfall.Daylight
December has the longest days of the year in Brightwater, with an average of 15h and 6min of daylight.On the first day of the month, sunrise is at 5:48 am and sunset at 8:44 pm. On the last day of December, sunrise is at 5:56 am and sunset at 9:04 pm NZDT.
Sunshine
The month with the most sunshine in Brightwater is December, with an average of 10.2h of sunshine.UV index
In December, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 4 in December interprets into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
What is the rainiest month?
How many days does it rain in December?
When it does not snow?
When are the longest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What month has the most sunshine?
How long on average sun shines in December?
What is the UV index reading in December?
Average temperature in December
Brightwater, New Zealand
- Average high temperature in December: 18.9°C
The warmest month (with the highest average high temperature) is January (20.7°C).
The month with the lowest average high temperature is July (10.1°C).
- Average low temperature in December: 10.4°C
The month with the highest average low temperature is January (11.6°C).
The coldest month (with the lowest average low temperature) is July (3.8°C).
Average pressure in December
Brightwater, New Zealand
- Average pressure in December: 1013.4mbar
The month with the highest atmospheric pressure is March (1017.8mbar).
The month with the lowest atmospheric pressure is September (1012.5mbar).
Average wind speed in December
Brightwater, New Zealand
- Average wind speed in December: 10.3km/h
The windiest month (with the highest average wind speed) is November (11.2km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in December
Brightwater, New Zealand
- Average humidity in December: 77%
The months with the highest relative humidity are June and August (82%).
The month with the lowest relative humidity is January (75%).
Average rainfall in December
Brightwater, New Zealand
- Average rainfall in December: 68mm
The wettest month (with the highest rainfall) is December (68mm).
The driest month (with the least rainfall) is February (31mm).
Average rainfall days in December
Brightwater, New Zealand
- Average rainfall days in December: 14.5 days
The months with the highest number of rainy days are October and December (14.5 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in December
Brightwater, New Zealand
- Average snowfall in December: 0mm
The month with the highest snowfall is July (2mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).
Average snowfall days in December
Brightwater, New Zealand
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is July (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Brightwater, New Zealand
- Average daylight in December: 15h and 1min
The month with the longest days is December (Average daylight: 15h and 6min).
The month with the shortest days is June (Average daylight: 9h and 12min).
- Average sunshine in December: 10h and 1min
The month with the most sunshine is December (Average sunshine: 10h and 12min).
The months with the least sunshine are June and August (Average sunshine: 7h and 30min).
Average sunshine days in December
Brightwater, New Zealand
- Average sunshine days in December: 13.2 days
The months with the most sunshine days are February and March (17.8 days).
The month with the least sunshine days is December (13.2 days).
Average UV index in December
Brightwater, 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, September and October (UV index 3).
Average cloud cover in December
Brightwater, New Zealand
- Average cloud cover in December: 35
The months with the most cloud cover are June and August (Cloud cover 36).
The month with the least cloud cover is February (Cloud cover 27).
Average visibility in December
Brightwater, New Zealand
- Average visibility in December: 9km
The months with the highest visibility are February, March and June (10km).
The months with the lowest visibility are January, April, May, July, August, September, October, November and December (9km).
