December weather forecast
Roebourne, Australia

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Weather in December

The first month of the summer, December, is still a hot month in Roebourne, Australia, with an average temperature varying between 33.7°C (92.7°F) and 27.7°C (81.9°F).

Temperature

December's climate shows a minor adjustment in average high-temperatures to a still tropical 33.7°C (92.7°F) from November's 32.8°C (91°F). Throughout the month of December, Roebourne reports a steady low-temperature average of 27.7°C (81.9°F).

Heat index

The heat index value during December is evaluated at a sweltering 39°C (102.2°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Roebourne, the average relative humidity in December is 55%.

Rainfall

In Roebourne, during December, the rain falls for 3.8 days and regularly aggregates up to 15mm (0.59") of precipitation. In Roebourne, during the entire year, the rain falls for 43.5 days and collects up to 203mm (7.99") of precipitation.

Daylight

With an average of 13h and 24min of daylight, December has the longest days of the year.
On the first day of December in Roebourne, sunrise is at 5:21 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 6:55 pm AWST.

Sunshine

In December, the average sunshine is 11.9h.

UV index

February, March, October and December, with an average maximum UV index of 8, are months with the highest UV index in Roebourne. A UV Index value of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV rays for the average person.
Note: The UV index of 8 during December leads to these advisories:
Without proper safety measures, skin and eyes can be quickly harmed. Be sure to protect yourself. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

How hot is it in Roebourne in December?

In December, the average high-temperature and low-temperature in Roebourne are 33.7°C (92.7°F) and 27.7°C (81.9°F) respectively. In December, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 39°C (102.2°F).

What is the average humidity in December in Roebourne?

The average relative humidity in December in Roebourne, Australia, is 55%.

How much does it rain in Roebourne in December?

In Roebourne, Australia, in December, during 3.8 rainfall days, 15mm (0.59") of precipitation is typically accumulated.

When are the longest days in Roebourne?

December has the longest days of the year in Roebourne, with an average of 13h and 24min of daylight.

What is the average length of the day in December in Roebourne?

The average day length in December in Roebourne is 13h and 22min.

When is the sunrise / sunset in December in Roebourne?

On the first day of December in Roebourne, sunrise is at 5:21 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 6:55 pm AWST.

How long on average sun shines in December in Roebourne?

In Roebourne, Australia, the average sunshine duration in December is 11.9h.

What are the months with the highest UV index in Roebourne?

The months with the highest UV index in Roebourne, Australia, are February, March, October and December, with an average maximum UV index of 8.

What is the UV index reading in December in Roebourne?

The average daily maximum UV index in December in Roebourne, Australia, is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in December
Roebourne, Australia

Average temperature in December - Roebourne, Australia
  • Average high temperature in December: 33.7°C

The warmest month (with the highest average high temperature) is March (34.2°C).
The month with the lowest average high temperature is July (25.7°C).

  • Average low temperature in December: 27.7°C

The month with the highest average low temperature is March (28.9°C).
The coldest month (with the lowest average low temperature) is July (19.8°C).

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Average pressure in December
Roebourne, Australia

Average pressure in December - Roebourne, Australia
  • Average pressure in December: 1006.4mbar

The month with the highest atmospheric pressure is July (1016.9mbar).
The month with the lowest atmospheric pressure is January (1005mbar).

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Average wind speed in December
Roebourne, Australia

Average wind speed in December - Roebourne, Australia
  • Average wind speed in December: 21.2km/h

The windiest month (with the highest average wind speed) is November (21.8km/h).
The calmest month (with the lowest average wind speed) is April (17.1km/h).

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Average humidity in December
Roebourne, Australia

Average humidity in December - Roebourne, Australia
  • Average humidity in December: 55%

The month with the highest relative humidity is January (62%).
The months with the lowest relative humidity are July, August, September and October (46%).

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Average rainfall in December
Roebourne, Australia

Average rainfall in December - Roebourne, Australia
  • Average rainfall in December: 15mm

The wettest month (with the highest rainfall) is February (67mm).
The driest months (with the least rainfall) are August, September and October (1mm).

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Average rainfall days in December
Roebourne, Australia

Average rainfall days in December - Roebourne, Australia
  • Average rainfall days in December: 3.8 days

The month with the highest number of rainy days is January (9.3 days).
The month with the least rainy days is October (0.5 days).

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

Average daylight in December / Average sunshine in December - Roebourne, Australia
  • Average daylight in December: 13h and 2min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).

  • Average sunshine in December: 11h and 5min

The month with the most sunshine is November (Average sunshine: 12h and 18min).
The month with the least sunshine is June (Average sunshine: 7h and 12min).

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Average sunshine days in December
Roebourne, Australia

Average sunshine days in December - Roebourne, Australia
  • Average sunshine days in December: 25.6 days

The month with the most sunshine days is August (30 days).
The month with the least sunshine days is January (20.5 days).

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Average UV index in December
Roebourne, Australia

Average UV index in December - Roebourne, Australia
  • Average UV index in December: 8

The months with the highest UV index are February, March, October and December (UV index 8).
The months with the lowest UV index are May, June, July and August (UV index 6).

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Average cloud cover in December
Roebourne, Australia

Average cloud cover in December - Roebourne, Australia
  • Average cloud cover in December: 12

The month with the most cloud cover is January (Cloud cover 19).
The month with the least cloud cover is September (Cloud cover 3).

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Average visibility in December
Roebourne, Australia

Average visibility in December - Roebourne, Australia
  • Average visibility in December: 10km

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

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Roebourne, Australia

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