December weather forecastUpper Castra, Australia
December
Weather in December
December, the first month of the summer in Upper Castra, is still a refreshing month, with an average temperature fluctuating between 17.6°C (63.7°F) and 11.5°C (52.7°F).Temperature
Upper Castra experiences a subtle adjustment in high-temperatures to a still refreshing 17.6°C (63.7°F) with the onset of December, maintaining near parity with November's 16°C (60.8°F). Throughout December, Upper Castra encounters an average temperature drop to a fresh 11.5°C (52.7°F).Humidity
In December, the average relative humidity in Upper Castra is 76%.Rainfall
In December, the rain falls for 9.8 days. Throughout December, 31mm (1.22") of precipitation is accumulated. In Upper Castra, during the entire year, the rain falls for 149.3 days and collects up to 519mm (20.43") of precipitation.Daylight
The month with the longest days is December, with an average of 15h and 6min of daylight.On the first day of December in Upper Castra, sunrise is at 5:36 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:51 pm AEDT.
Sunshine
December has the most sunshine of the year in Upper Castra, Australia, with an average of 10.2h of sunshine.UV index
The months with the highest UV index in Upper Castra are January and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 5 during December leads to these advisories:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Upper Castra, Australia
- Average high temperature in December: 17.6°C
The warmest month (with the highest average high temperature) is January (19.7°C).
The month with the lowest average high temperature is August (11.4°C).
- Average low temperature in December: 11.5°C
The month with the highest average low temperature is February (13.5°C).
The coldest month (with the lowest average low temperature) is August (6.8°C).
Average pressure in December
Upper Castra, Australia
- Average pressure in December: 1011.6mbar
The month with the highest atmospheric pressure is June (1019mbar).
The month with the lowest atmospheric pressure is December (1011.6mbar).
Average wind speed in December
Upper Castra, Australia
- Average wind speed in December: 17.6km/h
The windiest month (with the highest average wind speed) is August (19.6km/h).
The calmest month (with the lowest average wind speed) is February (16.1km/h).
Average humidity in December
Upper Castra, Australia
- Average humidity in December: 76%
The months with the highest relative humidity are June, July, August and September (79%).
The month with the lowest relative humidity is January (74%).
Average rainfall in December
Upper Castra, Australia
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is August (72mm).
The driest month (with the least rainfall) is January (19mm).
Average rainfall days in December
Upper Castra, Australia
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is August (18.5 days).
The month with the least rainy days is January (6.5 days).
Average daylight in December /
Average sunshine in December
Upper Castra, Australia
- Average daylight in December: 15h and 6min
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 12min
The month with the most sunshine is December (Average sunshine: 10h and 12min).
The month with the least sunshine is June (Average sunshine: 5h and 36min).
Average sunshine days in December
Upper Castra, Australia
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is August (9 days).
Average UV index in December
Upper Castra, Australia
- Average UV index in December: 5
The months with the highest UV index are January and December (UV index 5).
The months with the lowest UV index are May, June, July, August and September (UV index 3).
Average cloud cover in December
Upper Castra, Australia
- Average cloud cover in December: 33
The month with the most cloud cover is July (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in December
Upper Castra, Australia
- 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).





