Bonnet Bay
Australia
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Bonnet Bay, Australia

December, the first month of the summer, in Bonnet Bay, is also a moderately hot month, with average temperature fluctuating between 27.7°C (81.9°F) and 17.1°C (62.8°F).

Temperature

In Bonnet Bay, the average high-temperature in December is practically the same as in November - a still warm 27.7°C (81.9°F). The average low-temperature, in Bonnet Bay, is 17.1°C (62.8°F).

Heat index

In December, the average heat index is calculated to 29.9°C (85.8°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, metabolic differences, differences in body mass, height, and shape). 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.

Humidity

In Bonnet Bay, the average relative humidity is 68%.

Rainfall

In Bonnet Bay, in December, during 12.5 rainfall days, 33mm (1.3") of precipitation is typically accumulated. Throughout the year, in Bonnet Bay, there are 138.7 rainfall days, and 508mm (20") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 21.6°C (70.9°F).
Note: For most, swimming in 21.6°C (70.9°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

December has the longest days of the year, with an average of 14.4h of daylight.

Sunshine

In December, the average sunshine is 9.3h.

UV index

January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index in Bonnet Bay. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: In December, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in December in Bonnet Bay?

The average high-temperature, in December, in Bonnet Bay, Australia, is 27.7°C (81.9°F), while the average low-temperature is 17.1°C (62.8°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, in December is calculated to 29.9°C (85.8°F).

What is the average humidity in December in Bonnet Bay?

In Bonnet Bay, Australia, the average relative humidity in December is 68%.

How much does it rain in Bonnet Bay in December?

In Bonnet Bay, during December, the rain falls for 12.5 days and regularly aggregates up to 33mm (1.3") of precipitation.

What is the sea water temperature in December in Bonnet Bay?

In Bonnet Bay, Australia, the average seawater temperature in December is 21.6°C (70.9°F). For swimming, a surface water temperature of 21.6°C (70.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

When are the longest days in Bonnet Bay?

December has the longest days of the year in Bonnet Bay, with an average of 14.4h of daylight.

How many hours of daylight does Bonnet Bay have in December?

The average length of the day in December in Bonnet Bay, Australia, is 14.4h.

How many hours of sunshine does Bonnet Bay have in December?

The average sunshine in December in Bonnet Bay is 9.3h.

When is the highest UV index in Bonnet Bay?

Months with the highest UV index in Bonnet Bay are January, February, November and December, with an average maximum UV index of 6.

How high is the UV index in December in Bonnet Bay?

In December, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation.
Average temperature in December - Bonnet Bay, 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 humidity in December - Bonnet Bay, 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 - Bonnet Bay, Australia
  • Average rainfall in December: 33mm

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

Average rainfall days in December - Bonnet Bay, 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 lowest number of rainy days is August (7.3 days).

Average sea temperature in December - Bonnet Bay, Australia
  • Average sea temperature in December: 21.6°C

The best month for swimming (with the highest average sea temperature) is February (23.8°C).
The coldest month (with the lowest average sea temperature) is September (18.4°C).

Average daylight in December / Average sunshine in December - Bonnet Bay, Australia
  • Average daylight in December: 14.4h

The month with the longest days is December (Average daylight: 14.4h).
The month with shortest days is June (Average daylight: 9.9h).

  • Average sunshine in December: 9.3h

The month with most sunshine is November (Average sunshine: 9.4h).
The month with least sunshine is June (Average sunshine: 5.8h).

Average UV index in December - Bonnet Bay, Australia
  • Average UV index in December: 6

Months with the highest UV index are January, February, November and December (UV index 6).
Months with the lowest UV index are May, June, July, August and September (UV index 4).