December weather forecastHolsworthy, Australia

December

Weather in December

The first month of the summer, December, is still a warm month in Holsworthy, Australia, with an average temperature varying between 17.1°C (62.8°F) and 27.7°C (81.9°F).

Temperature

At the start of December, Holsworthy's average high-temperature reaches a still warm 27.7°C (81.9°F), subtly different from the preceding month. December in Holsworthy, Australia, sees the temperature falling to a mean low of 17.1°C (62.8°F).

Heat index

December's mean heat index is computed to be a hot 30°C (86°F). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In December, the average relative humidity in Holsworthy is 68%.

Rainfall

In December, in Holsworthy, the rain falls for 12.5 days. Throughout December, 33mm (1.3") of precipitation is accumulated. In Holsworthy, Australia, during the entire year, the rain falls for 138.7 days and collects up to 508mm (20") of precipitation.

Daylight

The month with the longest days is December, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 5:37 am and sunset at 7:52 pm. On the last day of December, sunrise is at 5:47 am and sunset at 8:10 pm AEDT.

Sunshine

In Holsworthy, Australia, the average sunshine in December is 9.3h.

UV index

The months with the highest UV index are January, February, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 6 translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

The high-temperature in Holsworthy during December is 27.7°C (81.9°F) and the low-temperature is 17.1°C (62.8°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in December is computed to be 30°C (86°F).

The average relative humidity in December in Holsworthy is 68%.

In December, in Holsworthy, Australia, the rain falls for 12.5 days. Throughout December, 33mm (1.3") of precipitation is accumulated.

December has the longest days of the year, with an average of 14h and 24min of daylight.

In December, the average day length in Holsworthy is 14h and 22min.

On the first day of December in Holsworthy, sunrise is at 5:37 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:10 pm AEDT.

The average sunshine duration in December is 9.3h.

The months with the highest UV index in Holsworthy are January, February, November and December, with an average maximum UV index of 6.

In Holsworthy, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Holsworthy, Australia

  • Average high temperature in December: 27.7°C

The warmest month (with the highest average high temperature) is January (29.3°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°C).

Average pressure in December
Holsworthy, 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
Holsworthy, Australia

  • Average wind speed in December: 10.2km/h

The windiest months (with the highest average wind speed) are January, September and December (10.2km/h).
The calmest month (with the lowest average wind speed) is April (8.8km/h).

Average humidity in December
Holsworthy, 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
Holsworthy, Australia

  • Average rainfall in December: 33mm

The wettest month (with the highest rainfall) is February (83mm).
The driest months (with the least rainfall) are May and September (26mm).

Average rainfall days in December
Holsworthy, Australia

  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is February (15.8 days).
The month with the least rainy days is August (7.3 days).

Average daylight in December /
Average sunshine in December
Holsworthy, Australia

  • Average daylight in December: 14h and 24min

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 18min

The month with the most sunshine is November (Average sunshine: 9h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).

Average sunshine days in December
Holsworthy, Australia

  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is August (22.7 days).
The month with the least sunshine days is February (10.6 days).

Average UV index in December
Holsworthy, 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
Holsworthy, Australia

  • Average cloud cover in December: 41

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
Holsworthy, 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).