December weather forecast
Grong Grong, Australia

December

Weather in December

The first month of the summer, December, is a tropical month in Grong, Australia, with an average temperature fluctuating between 30.7°C (87.3°F) and 18.5°C (65.3°F).

Temperature

With the start of December, the average high-temperature marginally shifts from November's moderately hot 27.5°C (81.5°F) to a hot 30.7°C (87.3°F). Grong documents a striking divergence from daytime highs, with an average nighttime temperature of 18.5°C (65.3°F) in December.

Heat index

December's heat index is computed to be a hot 31°C (87.8°F). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 quite important for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

In Grong, the average relative humidity in December is 40%.

Rainfall

In Grong, during December, the rain falls for 7.4 days and regularly aggregates up to 24mm (0.94") of precipitation. Throughout the year, there are 97 rainfall days, and 298mm (11.73") of precipitation is accumulated.

Daylight

With an average of 14h and 24min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 5:52 am and sunset at 8:11 pm. On the last day of December, sunrise is at 6:02 am and sunset at 8:29 pm AEDT.

Sunshine

With an average of 11h of sunshine, December has the most sunshine of the year.

UV index

January, February and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 7 during December leads to these advisories:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

How hot is December?
The high-temperature, in December, in Grong, is 30.7°C (87.3°F), while the low-temperature averages to 18.5°C (65.3°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in December is computed to be 31°C (87.8°F).
What is the average humidity in December?
In December, the average relative humidity in Grong is 40%.
How much does it rain in Grong in December?
In December, the rain falls for 7.4 days. Throughout December, 24mm (0.94") of precipitation is accumulated.
When are the longest days?
With an average of 14h and 24min of daylight, December has the longest days of the year.
What is the average length of the day in December?
The average day length in December is 14h and 26min.
When are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 5:52 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:29 pm AEDT.
What month has the most sunshine?
The month with the most sunshine is December, with an average of 11h of sunshine.
How long on average sun shines in December?
In December, the average sunshine duration is 11h.
What are the months with the highest UV index?
January, February and December, with an average maximum UV index of 7, are months with the highest UV index.
What is the UV index intensity in December?
In December, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Grong Grong, Australia
  • Average high temperature in December: 30.7°C

The warmest month (with the highest average high temperature) is January (33.8°C).
The month with the lowest average high temperature is July (13.3°C).

  • Average low temperature in December: 18.5°C

The month with the highest average low temperature is January (21.1°C).
The coldest month (with the lowest average low temperature) is August (4.3°C).

Average pressure in December
Grong Grong, Australia
  • Average pressure in December: 1011.4mbar

The month with the highest atmospheric pressure is June (1022.3mbar).
The month with the lowest atmospheric pressure is January (1010.4mbar).

Average wind speed in December
Grong Grong, Australia
  • Average wind speed in December: 13.5km/h

The windiest month (with the highest average wind speed) is November (14km/h).
The calmest months (with the lowest average wind speed) are April, May and June (11.7km/h).

Average humidity in December
Grong Grong, Australia
  • Average humidity in December: 40%

The months with the highest relative humidity are June and July (80%).
The month with the lowest relative humidity is January (37%).

Average rainfall in December
Grong Grong, Australia
  • Average rainfall in December: 24mm

The wettest month (with the highest rainfall) is November (42mm).
The driest month (with the least rainfall) is July (17mm).

Average rainfall days in December
Grong Grong, Australia
  • Average rainfall days in December: 7.4 days

The months with the highest number of rainy days are August and October (9.7 days).
The month with the least rainy days is February (6.6 days).

Average daylight in December /
Average sunshine in December
Grong Grong, 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: 11h and 0min

The month with the most sunshine is December (Average sunshine: 11h and 0min).
The month with the least sunshine is July (Average sunshine: 7h and 24min).

Average sunshine days in December
Grong Grong, Australia
  • Average sunshine days in December: 21.9 days

The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is August (18.4 days).

Average UV index in December
Grong Grong, Australia
  • Average UV index in December: 7

The months with the highest UV index are January, February and December (UV index 7).
The months with the lowest UV index are June and August (UV index 3).

Average cloud cover in December
Grong Grong, Australia
  • Average cloud cover in December: 18

The month with the most cloud cover is July (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 16).

Average visibility in December
Grong Grong, Australia
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, October, November and December (10km).
The months with the lowest visibility are June, July, August and September (9km).

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