December weather forecastMount Colah, Australia
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Mount Colah, Australia, with an average temperature ranging between max 25.8°C (78.4°F) and min 17.9°C (64.2°F).Temperature
Mount Colah's weather in December indicates an average high-temperature of a still warm 25.8°C (78.4°F), nearly consistent with the 24.3°C (75.7°F) of November. Nighttime temperature dips to a mean of 17.9°C (64.2°F) during December.Humidity
In December, the average relative humidity in Mount Colah, Australia, is 71%.Rainfall
In Mount Colah, during December, the rain falls for 14.8 days and regularly aggregates up to 43mm (1.69") of precipitation. In Mount Colah, Australia, during the entire year, the rain falls for 169 days and collects up to 647mm (25.47") of precipitation.Daylight
The month with the longest days is December, with an average of 14h and 18min of daylight.On the first day of December in Mount Colah, sunrise is at 5:38 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:09 pm AEDT.
Sunshine
In Mount Colah, the average sunshine in December is 9.7h.UV index
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index in Mount Colah. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 6 during December, leads to the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mount Colah, Australia
- Average high temperature in December: 25.8°C
The warmest month (with the highest average high temperature) is January (27.3°C).
The month with the lowest average high temperature is July (16.6°C).
- Average low temperature in December: 17.9°C
The month with the highest average low temperature is January (19.8°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average pressure in December
Mount Colah, Australia
- Average pressure in December: 1013.4mbar
The month with the highest atmospheric pressure is June (1020.9mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Mount Colah, Australia
- Average wind speed in December: 13.9km/h
The windiest months (with the highest average wind speed) are January and August (14km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).
Average humidity in December
Mount Colah, Australia
- Average humidity in December: 71%
The month with the highest relative humidity is February (75%).
The months with the lowest relative humidity are August and September (66%).
Average rainfall in December
Mount Colah, Australia
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is February (92mm).
The driest month (with the least rainfall) is September (35mm).
Average rainfall days in December
Mount Colah, Australia
- Average rainfall days in December: 14.8 days
The month with the highest number of rainy days is March (18.8 days).
The month with the least rainy days is August (10.1 days).
Average daylight in December /
Average sunshine in December
Mount Colah, Australia
- Average daylight in December: 14h and 18min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in December: 9h and 42min
The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in December
Mount Colah, Australia
- Average sunshine days in December: 12.6 days
The month with the most sunshine days is August (17.9 days).
The month with the least sunshine days is March (8.8 days).
Average UV index in December
Mount Colah, Australia
- Average UV index in December: 6
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in December
Mount Colah, Australia
- Average cloud cover in December: 37
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Mount Colah, 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).
