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
The shift into December finds Castlecliff at an average high-temperature of a still enjoyable 19.7°C (67.5°F), closely comparable to November's conditions. Castlecliff's nights in December experience an average temperature drop to a fresh 12.7°C (54.9°F).Humidity
The average relative humidity in December in Castlecliff is 78%.Rainfall
In December, the rain falls for 15.9 days. Throughout December, 54mm (2.13") of precipitation is accumulated. Throughout the year, in Castlecliff, New Zealand, there are 176 rainfall days, and 634mm (24.96") of precipitation is accumulated.Snowfall
January through July, September through December are months without snowfall.Daylight
With an average of 14h and 54min of daylight, December has the longest days of the year in Castlecliff.On the first day of the month, sunrise is at 5:45 am and sunset at 8:32 pm. On the last day of December, in Castlecliff, sunrise is at 5:54 am and sunset at 8:51 pm NZDT.
Sunshine
December has the most sunshine of the year in Castlecliff, with an average of 8.8h of sunshine.UV index
The months with the highest UV index in Castlecliff are January through March and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 5 in December transforms into the following instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Castlecliff?
What is the average humidity in December in Castlecliff?
How many days does it rain in December in Castlecliff?
When it does not snow in Castlecliff?
When are the longest days in Castlecliff?
How many hours of daylight does Castlecliff have in December?
What time are sunrise and sunset in December in Castlecliff?
What month has the most sunshine in Castlecliff?
How many hours of sunshine does Castlecliff have in December?
When is the highest UV index in Castlecliff?
How high is the UV index in December in Castlecliff?
Average temperature in December
Castlecliff, New Zealand
- Average high temperature in December: 19.7°C
The warmest month (with the highest average high temperature) is February (21.5°C).
The month with the lowest average high temperature is July (11.8°C).
- Average low temperature in December: 12.7°C
The month with the highest average low temperature is February (14°C).
The coldest month (with the lowest average low temperature) is August (7.2°C).
Average pressure in December
Castlecliff, New Zealand
- Average pressure in December: 1014.2mbar
The month with the highest atmospheric pressure is March (1018.1mbar).
The month with the lowest atmospheric pressure is September (1013.1mbar).
Average wind speed in December
Castlecliff, New Zealand
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is October (18.2km/h).
The calmest month (with the lowest average wind speed) is February (14.6km/h).
Average humidity in December
Castlecliff, New Zealand
- Average humidity in December: 78%
The months with the highest relative humidity are June and August (82%).
The month with the lowest relative humidity is January (76%).
Average rainfall in December
Castlecliff, New Zealand
- Average rainfall in December: 54mm
The wettest month (with the highest rainfall) is April (69mm).
The driest month (with the least rainfall) is February (30mm).
Average rainfall days in December
Castlecliff, New Zealand
- Average rainfall days in December: 15.9 days
The month with the highest number of rainy days is September (17.4 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in December
Castlecliff, New Zealand
- Average snowfall in December: 0mm
The month with the highest snowfall is August (2mm).
The months with the least snowfall are January, February, March, April, May, June, July, September, October, November and December (0mm).
Average snowfall days in December
Castlecliff, New Zealand
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is August (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Castlecliff, New Zealand
- Average daylight in December: 14h and 5min
The month with the longest days is December (Average daylight: 14h and 54min).
The month with the shortest days is June (Average daylight: 9h and 24min).
- Average sunshine in December: 8h and 5min
The month with the most sunshine is December (Average sunshine: 8h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 12min).
Average sunshine days in December
Castlecliff, New Zealand
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is January (16.4 days).
The month with the least sunshine days is September (9.7 days).
Average UV index in December
Castlecliff, New Zealand
- Average UV index in December: 5
The months with the highest UV index are January, February, March and December (UV index 5).
The months with the lowest UV index are May, June, July and August (UV index 3).
Average cloud cover in December
Castlecliff, New Zealand
- Average cloud cover in December: 42
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is January (Cloud cover 34).
Average visibility in December
Castlecliff, New Zealand
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, November and December (10km).
The months with the lowest visibility are September and October (9km).
