December weather forecastGoolwa, Australia

December

Weather in December

December, the first month of the summer in Goolwa, is also an agreeable month, with an average temperature ranging between min 15.3°C (59.5°F) and max 22.5°C (72.5°F).

Temperature

With the transition into December, Goolwa notes an average high-temperature of a still pleasant 22.5°C (72.5°F), closely resembling November. Goolwa, during December nights, observes an average temperature of 15.3°C (59.5°F).

Humidity

In Goolwa, the average relative humidity in December is 64%.

Rainfall

In Goolwa, in December, during 11.5 rainfall days, 23mm (0.91") of precipitation is typically accumulated. In Goolwa, during the entire year, the rain falls for 142.7 days and collects up to 303mm (11.93") of precipitation.

Daylight

The month with the longest days is December, with an average of 14h and 30min of daylight.
On the first day of December, sunrise is at 5:52 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:33 pm ACDT.

Sunshine

The month with the most sunshine is December, with an average of 9.8h of sunshine.

UV index

January and December, with an average maximum UV index of 6, are months with the highest UV index in Goolwa. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during December leads to these instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

The high-temperature, in December, in Goolwa, records 22.5°C (72.5°F), while the low-temperature is 15.3°C (59.5°F).

The average relative humidity in December in Goolwa is 64%.

In December, in Goolwa, the rain falls for 11.5 days. Throughout December, 23mm (0.91") of precipitation is accumulated.

The month with the longest days in Goolwa is December, with an average of 14h and 30min of daylight.

In Goolwa, Australia, the average day length in December is 14h and 31min.

On the first day of December in Goolwa, sunrise is at 5:52 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:33 pm ACDT.

With an average of 9.8h of sunshine, December has the most sunshine of the year in Goolwa.

In Goolwa, Australia, the average sunshine duration in December is 9.8h.

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

In Goolwa, Australia, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
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
Goolwa, Australia

  • Average high temperature in December: 22.5°C

The warmest month (with the highest average high temperature) is January (24.3°C).
The month with the lowest average high temperature is July (14.1°C).

  • Average low temperature in December: 15.3°C

The month with the highest average low temperature is January (17.3°C).
The coldest month (with the lowest average low temperature) is August (9.8°C).

Average pressure in December
Goolwa, Australia

  • Average pressure in December: 1013.3mbar

The month with the highest atmospheric pressure is June (1021.5mbar).
The month with the lowest atmospheric pressure is January (1012.7mbar).

Average wind speed in December
Goolwa, Australia

  • Average wind speed in December: 15km/h

The windiest month (with the highest average wind speed) is August (17.8km/h).
The calmest month (with the lowest average wind speed) is April (13.7km/h).

Average humidity in December
Goolwa, Australia

  • Average humidity in December: 64%

The months with the highest relative humidity are June and July (73%).
The month with the lowest relative humidity is January (63%).

Average rainfall in December
Goolwa, Australia

  • Average rainfall in December: 23mm

The wettest month (with the highest rainfall) is May (39mm).
The driest month (with the least rainfall) is February (14mm).

Average rainfall days in December
Goolwa, Australia

  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is February (6.9 days).

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

  • Average daylight in December: 14h and 30min

The month with the longest days is December (Average daylight: 14h and 30min).
The month with the shortest days is June (Average daylight: 9h and 48min).

  • Average sunshine in December: 9h and 48min

The month with the most sunshine is December (Average sunshine: 9h and 48min).
The months with the least sunshine are May and June (Average sunshine: 6h and 48min).

Average sunshine days in December
Goolwa, Australia

  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.1 days).

Average UV index in December
Goolwa, Australia

  • Average UV index in December: 6

The months with the highest UV index are January 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
Goolwa, Australia

  • Average cloud cover in December: 30

The month with the most cloud cover is May (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 25).

Average visibility in December
Goolwa, 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).