December weather forecastGrabben Gullen, Australia

December

Weather in December

December, the first month of the summer in Grabben Gullen, is also a moderately hot month, with temperature in the range of an average high of 25.7°C (78.3°F) and an average low of 12.4°C (54.3°F).

Temperature

Transitioning into December, Grabben Gullen experiences an average high-temperature of a still warm 25.7°C (78.3°F), marking a minor shift from the preceding month. Grabben Gullen registers a substantial downturn from daytime peaks throughout December nights, with an average low-temperature of 12.4°C (54.3°F).

Humidity

In Grabben Gullen, the average relative humidity in December is 66%.

Rainfall

In Grabben Gullen, in December, during 11.8 rainfall days, 42mm (1.65") of precipitation is typically accumulated. In Grabben Gullen, during the entire year, the rain falls for 138.1 days and collects up to 421mm (16.57") of precipitation.

Snowfall

January through May, October through December are months without snowfall.

Daylight

December has the longest days of the year in Grabben Gullen, Australia, with an average of 14h and 24min of daylight.
On the first day of December in Grabben Gullen, sunrise is at 5:42 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:18 pm AEDT.

Sunshine

With an average of 10.4h of sunshine, December has the most sunshine of the year in Grabben Gullen.

UV index

The months with the highest UV index in Grabben Gullen are January and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 in December translates into these instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

In December, the average high-temperature and low-temperature in Grabben Gullen, Australia, are 25.7°C (78.3°F) and 12.4°C (54.3°F) respectively. In January, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 31°C (87.8°F).

In December, the average relative humidity in Grabben Gullen, Australia, is 66%.

In December, the rain falls for 11.8 days. Throughout December, 42mm (1.65") of precipitation is accumulated.

January through May, October through December are months without snowfall in Grabben Gullen.

The month with the longest days in Grabben Gullen is December, with an average of 14h and 24min of daylight.

In Grabben Gullen, Australia, the average day length in December is 14h and 25min.

In December, on the first day of the month, sunrise is at 5:42 am and sunset at 8:00 pm. On the last day of the month, in Grabben Gullen, Australia, sunrise is at 5:52 am and sunset at 8:18 pm AEDT.

The month with the most sunshine is December, with an average of 10.4h of sunshine.

In Grabben Gullen, the average sunshine duration in December is 10.4h.

January and December, with an average maximum UV index of 6, are months with the highest UV index in Grabben Gullen, Australia.

The average daily maximum UV index in December in Grabben Gullen 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 snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Grabben Gullen, Australia

  • Average high temperature in December: 25.7°C

The warmest month (with the highest average high temperature) is January (28.5°C).
The month with the lowest average high temperature is July (11.1°C).

  • Average low temperature in December: 12.4°C

The month with the highest average low temperature is January (14.8°C).
The coldest month (with the lowest average low temperature) is July (2.5°C).

Average pressure in December
Grabben Gullen, Australia

  • Average pressure in December: 1013mbar

The month with the highest atmospheric pressure is June (1021.6mbar).
The month with the lowest atmospheric pressure is January (1012.6mbar).

Average wind speed in December
Grabben Gullen, Australia

  • Average wind speed in December: 9.3km/h

The windiest month (with the highest average wind speed) is August (11.8km/h).
The calmest months (with the lowest average wind speed) are March and April (8.2km/h).

Average humidity in December
Grabben Gullen, Australia

  • Average humidity in December: 66%

The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (65%).

Average rainfall in December
Grabben Gullen, Australia

  • Average rainfall in December: 42mm

The wettest month (with the highest rainfall) is February (54mm).
The driest months (with the least rainfall) are April and May (21mm).

Average rainfall days in December
Grabben Gullen, Australia

  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is May (7.9 days).

Average snowfall in December
Grabben Gullen, Australia

  • Average snowfall in December: 0mm

The month with the highest snowfall is September (20mm).
The months with the least snowfall are January, February, March, April, May, October, November and December (0mm).

Average snowfall days in December
Grabben Gullen, Australia

  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is August (1.3 days).
The months with the least snowfall days are January, February, March, April and December (0 days).

Average daylight in December /
Average sunshine in December
Grabben Gullen, 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: 10h and 24min

The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 24min).

Average sunshine days in December
Grabben Gullen, Australia

  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is May (20.1 days).
The month with the least sunshine days is February (13.6 days).

Average UV index in December
Grabben Gullen, Australia

  • Average UV index in December: 6

The months with the highest UV index are January and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 3).

Average cloud cover in December
Grabben Gullen, Australia

  • Average cloud cover in December: 38

The month with the most cloud cover is June (Cloud cover 55).
The months with the least cloud cover are January and December (Cloud cover 38).

Average visibility in December
Grabben Gullen, Australia

  • Average visibility in December: 9km

The months with the highest visibility are January and December (9km).
The months with the lowest visibility are April, May, June, July, August and September (7km).