December weather forecast
Boyanup, Australia

December

Weather in December

December, the first month of the summer in Boyanup, is a warm month, with an average temperature fluctuating between 24.7°C (76.5°F) and 15.6°C (60.1°F).

Temperature

December ushers in an average high-temperature of a warm 24.7°C (76.5°F), aligning closely with the preceding month. Boyanup experiences a mean low-temperature of 15.6°C (60.1°F) during December.

Humidity

In December, the average relative humidity is 65%.

Rainfall

In Boyanup, in December, during 5.7 rainfall days, 13mm (0.51") of precipitation is typically accumulated. Throughout the year, there are 130.6 rainfall days, and 479mm (18.86") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 14h and 18min of daylight.
On the first day of the month, sunrise is at 5:00 am and sunset at 7:12 pm. On the last day of December, sunrise is at 5:10 am and sunset at 7:30 pm AWST.

Sunshine

In December, the average sunshine in Boyanup is 11.2h.

UV index

The months with the highest UV index in Boyanup are February and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during December translates into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

What are the temperatures in Boyanup in December?
In December, in Boyanup, the average high-temperature is 24.7°C (76.5°F), and the average low-temperature is 15.6°C (60.1°F). In February, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 28°C (82.4°F).
What is the average humidity in December in Boyanup?
In Boyanup, Australia, the average relative humidity in December is 65%.
How many days does it rain in December in Boyanup?
In Boyanup, in December, during 5.7 rainfall days, 13mm (0.51") of precipitation is typically accumulated.
When are the longest days in Boyanup?
With an average of 14h and 18min of daylight, December has the longest days of the year in Boyanup, Australia.
How many hours of daylight does Boyanup have in December?
The average day length in December is 14h and 20min.
When is the sunrise / sunset in December in Boyanup?
In December, on the first day of the month, sunrise is at 5:00 am and sunset at 7:12 pm. On the last day of the month, in Boyanup, Australia, sunrise is at 5:10 am and sunset at 7:30 pm AWST.
How long on average sun shines in December in Boyanup?
In Boyanup, Australia, the average sunshine duration in December is 11.2h.
When is the highest UV index in Boyanup?
The months with the highest UV index are February and December, with an average maximum UV index of 6.
What is the UV index intensity in December in Boyanup?
The average daily maximum UV index in December in Boyanup, Australia, is 6. A UV Index estimate of 6 to 7 represents a high health risk 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Boyanup, Australia
Average temperature in December
Boyanup, Australia
  • Average high temperature in December: 24.7°C

The warmest month (with the highest average high temperature) is February (27°C).
The month with the lowest average high temperature is July (16.2°C).

  • Average low temperature in December: 15.6°C

The month with the highest average low temperature is February (17.6°C).
The coldest months (with the lowest average low temperature) are August and September (10.8°C).

Average pressure in December - Boyanup, Australia
Average pressure in December
Boyanup, Australia
  • Average pressure in December: 1013.9mbar

The month with the highest atmospheric pressure is July (1019.8mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).

Average wind speed in December - Boyanup, Australia
Average wind speed in December
Boyanup, Australia
  • Average wind speed in December: 17.5km/h

The windiest month (with the highest average wind speed) is January (17.6km/h).
The calmest month (with the lowest average wind speed) is April (14.6km/h).

Average humidity in December - Boyanup, Australia
Average humidity in December
Boyanup, Australia
  • Average humidity in December: 65%

The months with the highest relative humidity are July and August (77%).
The month with the lowest relative humidity is January (63%).

Average rainfall in December - Boyanup, Australia
Average rainfall in December
Boyanup, Australia
  • Average rainfall in December: 13mm

The wettest month (with the highest rainfall) is July (90mm).
The driest month (with the least rainfall) is January (11mm).

Average rainfall days in December - Boyanup, Australia
Average rainfall days in December
Boyanup, Australia
  • Average rainfall days in December: 5.7 days

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (4.2 days).

Average daylight in December / Average sunshine in December - Boyanup, Australia
Average daylight in December /
Average sunshine in December
Boyanup, Australia
  • Average daylight in December: 14h and 2min

The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in December: 11h and 1min

The month with the most sunshine is January (Average sunshine: 11h and 24min).
The months with the least sunshine are July and August (Average sunshine: 5h and 36min).

Average sunshine days in December - Boyanup, Australia
Average sunshine days in December
Boyanup, Australia
  • Average sunshine days in December: 22.8 days

The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is August (8.8 days).

Average UV index in December - Boyanup, Australia
Average UV index in December
Boyanup, Australia
  • Average UV index in December: 6

The months with the highest UV index are 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 - Boyanup, Australia
Average cloud cover in December
Boyanup, Australia
  • Average cloud cover in December: 18

The month with the most cloud cover is July (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 15).

Average visibility in December - Boyanup, Australia
Average visibility in December
Boyanup, 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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