December weather forecastStewarts River, Australia

December

Weather in December

The first month of the summer, December, is still a warm month in Stewarts River, Australia, with temperature in the range of an average high of 26.5°C (79.7°F) and an average low of 17.5°C (63.5°F).

Temperature

Stewarts River, Australia, indicates an average high-temperature of a still moderately hot 26.5°C (79.7°F) in December, showing minor variation from November's 25.3°C (77.5°F). Stewarts River's nighttime temperature in December drops to an average of 17.5°C (63.5°F).

Humidity

The average relative humidity in December is 75%.

Rainfall

In Stewarts River, Australia, in December, it is raining for 15.9 days, with typically 59mm (2.32") of accumulated precipitation. Throughout the year, there are 162.5 rainfall days, and 654mm (25.75") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 14h and 12min of daylight.
On the first day of the month, sunrise is at 5:36 am and sunset at 7:40 pm. On the last day of December, sunrise is at 5:46 am and sunset at 7:58 pm AEDT.

Sunshine

The average sunshine in December in Stewarts River, Australia, is 9.4h.

UV index

January, February and December, with an average maximum UV index of 6, are months with the highest UV index in Stewarts River. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 6 transforms into these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

The average high-temperature, in December, in Stewarts River, is 26.5°C (79.7°F), while the average low-temperature is 17.5°C (63.5°F). In January, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 32°C (89.6°F).

The average relative humidity in December in Stewarts River is 75%.

In Stewarts River, in December, during 15.9 rainfall days, 59mm (2.32") of precipitation is typically accumulated.

With an average of 14h and 12min of daylight, December has the longest days of the year in Stewarts River, Australia.

The average day length in December in Stewarts River, Australia, is 14h and 11min.

On the first day of December, sunrise is at 5:36 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:58 pm AEDT.

The average sunshine duration in December is 9.4h.

The months with the highest UV index in Stewarts River, Australia, are January, February and December, with an average maximum UV index of 6.

The average daily maximum UV index in December in Stewarts River, Australia, is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Stewarts River, Australia

  • Average high temperature in December: 26.5°C

The warmest month (with the highest average high temperature) is January (28.3°C).
The month with the lowest average high temperature is July (16.8°C).

  • Average low temperature in December: 17.5°C

The month with the highest average low temperature is January (19.3°C).
The coldest month (with the lowest average low temperature) is July (8.9°C).

Average pressure in December
Stewarts River, Australia

  • Average pressure in December: 1013.5mbar

The months with the highest atmospheric pressure are June and July (1020.7mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).

Average wind speed in December
Stewarts River, Australia

  • Average wind speed in December: 11.2km/h

The windiest month (with the highest average wind speed) is December (11.2km/h).
The calmest month (with the lowest average wind speed) is April (8.9km/h).

Average humidity in December
Stewarts River, Australia

  • Average humidity in December: 75%

The months with the highest relative humidity are March and June (80%).
The month with the lowest relative humidity is September (68%).

Average rainfall in December
Stewarts River, Australia

  • Average rainfall in December: 59mm

The wettest month (with the highest rainfall) is March (96mm).
The driest month (with the least rainfall) is September (27mm).

Average rainfall days in December
Stewarts River, Australia

  • Average rainfall days in December: 15.9 days

The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (8.3 days).

Average daylight in December /
Average sunshine in December
Stewarts River, Australia

  • Average daylight in December: 14h and 12min

The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).

  • Average sunshine in December: 9h and 24min

The month with the most sunshine is November (Average sunshine: 9h and 30min).
The month with the least sunshine is June (Average sunshine: 5h and 42min).

Average sunshine days in December
Stewarts River, Australia

  • Average sunshine days in December: 12.9 days

The month with the most sunshine days is August (21.3 days).
The month with the least sunshine days is February (10.6 days).

Average UV index in December
Stewarts River, Australia

  • Average UV index in December: 6

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

Average cloud cover in December
Stewarts River, Australia

  • Average cloud cover in December: 39

The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in December
Stewarts River, Australia

  • Average visibility in December: 9km

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