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 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
December denotes a minimal variation in the average high-temperature to a still moderately hot 27.7°C (81.9°F) from November's 26.1°C (79°F). In Baulkham Hills, the nighttime temperature averages to a refreshing 17.1°C (62.8°F) during December.Heat index
The heat index value during December is calculated to be a hot 30°C (86°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.Consider that heat index readings are for situations in the shade and light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
The average relative humidity in December is 68%.Rainfall
In Baulkham Hills, in December, it is raining for 14 days, with typically 36mm (1.42") of accumulated precipitation. Throughout the year, in Baulkham Hills, there are 149.1 rainfall days, and 546mm (21.5") of precipitation is accumulated.Daylight
The month with the longest days in Baulkham Hills is December, with an average of 14h and 24min of daylight.On the first day of the month, sunrise is at 5:38 am and sunset at 7:51 pm. On the last day of December, in Baulkham Hills, sunrise is at 5:48 am and sunset at 8:09 pm AEDT.
Sunshine
The months with the most sunshine are November and December, with an average of 9.4h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index in Baulkham Hills. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 6 suggests these recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Baulkham Hills?
What is the average humidity in December in Baulkham Hills?
How many days does it rain in December in Baulkham Hills?
When are the longest days in Baulkham Hills?
What is the average length of the day in December in Baulkham Hills?
When are sunrise and sunset in December in Baulkham Hills?
What is the month with the most sunshine in Baulkham Hills?
How long on average sun shines in December in Baulkham Hills?
What are the months with the highest UV index in Baulkham Hills?
What is the UV index intensity in December in Baulkham Hills?
Average temperature in December
Baulkham Hills, Australia
- Average high temperature in December: 27.7°C
The warmest month (with the highest average high temperature) is January (29.2°C).
The month with the lowest average high temperature is June (16.8°C).
- Average low temperature in December: 17.1°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).
Average pressure in December
Baulkham Hills, Australia
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Baulkham Hills, Australia
- Average wind speed in December: 10.2km/h
The windiest month (with the highest average wind speed) is December (10.2km/h).
The calmest month (with the lowest average wind speed) is April (8.8km/h).
Average humidity in December
Baulkham Hills, Australia
- Average humidity in December: 68%
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is September (65%).
Average rainfall in December
Baulkham Hills, Australia
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is February (87mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in December
Baulkham Hills, Australia
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is March (17.6 days).
The month with the least rainy days is August (7.9 days).
Average daylight in December /
Average sunshine in December
Baulkham Hills, Australia
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 9h and 2min
The months with the most sunshine are November and December (Average sunshine: 9h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in December
Baulkham Hills, Australia
- Average sunshine days in December: 14.2 days
The month with the most sunshine days is August (21 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in December
Baulkham Hills, 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
Baulkham Hills, Australia
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Baulkham Hills, Australia
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
