December weather forecast
Darwin, Australia

Weather in December

The first month of the summer, December, is still a hot month in Darwin, Australia, with an average temperature varying between 27.8°C (82°F) and 32.5°C (90.5°F).

Temperature

In Darwin, the average high-temperature in December is almost the same as in November - a still tropical 32.5°C (90.5°F). In December, the average low-temperature is 27.8°C (82°F).

Heat index

In December, the average heat index is evaluated at a blistering 43°C (109.4°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like wind, differences in body mass, height, and shape, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In December, the average relative humidity in Darwin is 72%.

Rainfall

In December, the rain falls for 27.7 days. Throughout December, 204mm (8.03") of precipitation is accumulated. In Darwin, during the entire year, the rain falls for 191.8 days and collects up to 1282mm (50.47") of precipitation.

Sea temperature

December is the month with the warmest seawater in Darwin, with an average sea temperature of 31.5°C (88.7°F).
Note: The water temperature above 30°C (86°F) is arguably regarded as unpleasant. The primary purpose of entering the water - cooling down from sunshine and high temperatures - is lost.

Daylight

With an average of 12h and 51min of daylight, December has the longest days of the year in Darwin.
On the first day of December in Darwin, sunrise is at 6:11 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:14 pm ACST.

Sunshine

In December, the average sunshine is 8.4h.

UV index

January through October and December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in December interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in December in Darwin?

In December, in Darwin, the average high-temperature is 32.5°C (90.5°F), and the average low-temperature is 27.8°C (82°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in December is evaluated at 43°C (109.4°F).

What is the average humidity in December in Darwin?

The average relative humidity in December in Darwin, Australia, is 72%.

How much does it rain in Darwin in December?

In December, in Darwin, the rain falls for 27.7 days. Throughout December, 204mm (8.03") of precipitation is accumulated.

What month is the sea warmest in Darwin?

December is the month with the warmest seawater, with an average sea temperature of 31.5°C (88.7°F).

What is the sea temperature in December in Darwin?

In Darwin, the average seawater temperature in December is 31.5°C (88.7°F). For swimming, other intense water activities, temperature above 30°C (86°F) is arguably unpleasant, as the water cooling effect is missing.

When are the longest days in Darwin?

The month with the longest days in Darwin, Australia, is December, with an average of 12h and 51min of daylight.

How many hours of daylight does Darwin have in December?

In December, the average day length is 12h and 51min.

When are sunrise and sunset in December in Darwin?

On the first day of December, sunrise is at 6:11 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:14 pm ACST.

How long on average sun shines in December in Darwin?

In Darwin, the average sunshine duration in December is 8.4h.

What are the months with the lowest UV index in Darwin?

The months with the lowest UV index in Darwin are January through October and December, with an average maximum UV index of 7.

What is the UV index intensity in December in Darwin?

The average daily maximum UV index in December in Darwin is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in December
Darwin, Australia

Average temperature in December - Darwin, Australia
  • Average high temperature in December: 32.5°C

The warmest month (with the highest average high temperature) is November (33.3°C).
The month with the lowest average high temperature is July (29.4°C).

  • Average low temperature in December: 27.8°C

The month with the highest average low temperature is December (27.8°C).
The coldest month (with the lowest average low temperature) is July (21.7°C).

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Average pressure in December
Darwin, Australia

Average pressure in December - Darwin, Australia
  • Average pressure in December: 1007mbar

The months with the highest atmospheric pressure are July and August (1013.2mbar).
The month with the lowest atmospheric pressure is January (1006.3mbar).

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Average wind speed in December
Darwin, Australia

Average wind speed in December - Darwin, Australia
  • Average wind speed in December: 11.3km/h

The windiest month (with the highest average wind speed) is January (15.3km/h).
The calmest month (with the lowest average wind speed) is September (9.9km/h).

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Average humidity in December
Darwin, Australia

Average humidity in December - Darwin, Australia
  • Average humidity in December: 72%

The months with the highest relative humidity are January and February (78%).
The month with the lowest relative humidity is June (57%).

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Average rainfall in December
Darwin, Australia

Average rainfall in December - Darwin, Australia
  • Average rainfall in December: 204mm

The wettest month (with the highest rainfall) is January (340mm).
The driest months (with the least rainfall) are June, July and August (2mm).

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Average rainfall days in December
Darwin, Australia

Average rainfall days in December - Darwin, Australia
  • Average rainfall days in December: 27.7 days

The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is June (1.9 days).

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Average sea temperature in December
Darwin, Australia

Average sea temperature in December - Darwin, Australia
  • Average sea temperature in December: 31.5°C

The best month for swimming (with the highest average sea temperature) is December (31.5°C).
The coldest month (with the lowest average sea temperature) is July (25.8°C).

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

Average daylight in December / Average sunshine in December - Darwin, Australia
  • Average daylight in December: 12h and 51min

The month with the longest days is December (Average daylight: 12h and 51min).
The month with the shortest days is June (Average daylight: 11h and 25min).

  • Average sunshine in December: 8h and 24min

The months with the most sunshine are June and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 7h and 30min).

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Average sunshine days in December
Darwin, Australia

Average sunshine days in December - Darwin, Australia
  • Average sunshine days in December: 2.3 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is February (0.9 days).

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Average UV index in December
Darwin, Australia

Average UV index in December - Darwin, Australia
  • Average UV index in December: 7

The month with the highest UV index is November (UV index 8).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 7).

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Average cloud cover in December
Darwin, Australia

Average cloud cover in December - Darwin, Australia
  • Average cloud cover in December: 37

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 9).

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Average visibility in December
Darwin, Australia

Average visibility in December - Darwin, Australia
  • Average visibility in December: 9km

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

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