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
Weather in December
Temperature
The high-temperature average in December for Pennant Hills is a still warm 27.7°C (81.9°F), staying closely aligned with November's conditions. Throughout the month of December, Pennant Hills reports a steady low-temperature average of 17.1°C (62.8°F).Heat index
In December, the heat index is evaluated at a tropical 30°C (86°F). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially vital to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In Pennant Hills, the average relative humidity in December is 68%.Rainfall
In Pennant Hills, Australia, during December, the rain falls for 14 days and regularly aggregates up to 36mm (1.42") of precipitation. Throughout the year, in Pennant Hills, there are 149.1 rainfall days, and 546mm (21.5") of precipitation is accumulated.Daylight
December has the longest days of the year in Pennant Hills, 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 Pennant Hills, Australia, sunrise is at 5:47 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 Pennant Hills, Australia. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 6 in December translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the usual temperature for Pennant Hills in December?
What is the average humidity in December in Pennant Hills?
How much does it rain in Pennant Hills in December?
When are the longest days in Pennant Hills?
How many hours of daylight does Pennant Hills have in December?
What time are sunrise and sunset in December in Pennant Hills?
What are the months with the most sunshine in Pennant Hills?
How many hours of sunshine does Pennant Hills have in December?
What is the month with the highest UV index in Pennant Hills?
What is the UV index intensity in December in Pennant Hills?
Average temperature in December
Pennant 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
Pennant 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
Pennant 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
Pennant 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
Pennant 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
Pennant 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
Pennant 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: 10h and 0min).
- 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
Pennant 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
Pennant 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
Pennant 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
Pennant 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).
Pennant Hills, Australia
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