Bellevue Hill
Australia
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Bellevue Hill, Australia

December, the first month of the summer, in Bellevue Hill, is still a warm month, with average temperature varying between 18.5°C (65.3°F) and 25.3°C (77.5°F).

Temperature

In Bellevue Hill, the average high-temperature is practically the same as in November - a still warm 25.3°C (77.5°F). In December, the average low-temperature is 18.5°C (65.3°F).

Humidity

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

Rainfall

In Bellevue Hill, in December, it is raining for 14.9 days, with typically 46mm (1.81") of accumulated precipitation. In Bellevue Hill, during the entire year, the rain falls for 166.6 days and collects up to 653mm (25.71") of precipitation.

Sea temperature

In December, the average sea temperature is 21.9°C (71.4°F).
Note: For swimming, a surface water temperature of 21.9°C (71.4°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).

Daylight

The month with the longest days in Bellevue Hill, Australia, is December, with an average of 14.4h of daylight.

Sunshine

In December, the average sunshine in Bellevue Hill is 9.7h.

UV index

Months with the highest UV index are January, February, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in December in Bellevue Hill?

The average high-temperature, in December, in Bellevue Hill, is 25.3°C (77.5°F), while the average low-temperature is 18.5°C (65.3°F).

What is the average humidity in December in Bellevue Hill?

The average relative humidity in December in Bellevue Hill is 72%.

How much does it rain in Bellevue Hill in December?

In Bellevue Hill, during December, the rain falls for 14.9 days and regularly aggregates up to 46mm (1.81") of precipitation.

How cold is the water in December in Bellevue Hill?

In Bellevue Hill, the average seawater temperature in December is 21.9°C (71.4°F). For swimming, a surface water temperature of 21.9°C (71.4°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 Bellevue Hill?

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

What is the average length of the day in December in Bellevue Hill?

In December, the average length of the day is 14.4h.

How long on average sun shines in December in Bellevue Hill?

In December, the average sunshine in Bellevue Hill is 9.7h.

What are the months with the highest UV index in Bellevue Hill?

January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in December in Bellevue Hill?

In Bellevue Hill, Australia, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in December - Bellevue Hill, Australia
  • Average high temperature in December: 25.3°C

The warmest month (with the highest average high temperature) is January (26.8°C).
The month with the lowest average high temperature is July (16.6°C).

  • Average low temperature in December: 18.5°C

The month with the highest average low temperature is January (20.2°C).
The coldest month (with the lowest average low temperature) is July (10.3°C).

Average humidity in December - Bellevue Hill, Australia
  • Average humidity in December: 72%

The month with the highest relative humidity is February (75%).
The month with the lowest relative humidity is August (65%).

Average rainfall in December - Bellevue Hill, Australia
  • Average rainfall in December: 46mm

The wettest month (with the highest rainfall) is February (93mm).
The driest month (with the lowest rainfall) is July (31mm).

Average rainfall days in December - Bellevue Hill, Australia
  • Average rainfall days in December: 14.9 days

The month with the highest number of rainy days is March (19 days).
The month with the lowest number of rainy days is August (9.2 days).

Average sea temperature in December - Bellevue Hill, Australia
  • Average sea temperature in December: 21.9°C

The best month for swimming (with the highest average sea temperature) is February (23.7°C).
The coldest month (with the lowest average sea temperature) is September (18.6°C).

Average daylight in December / Average sunshine in December - Bellevue Hill, 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: 9.7h

The month with most sunshine is November (Average sunshine: 9.8h).
The month with least sunshine is June (Average sunshine: 5.9h).

Average UV index in December - Bellevue Hill, 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).