December weather forecastSwan Marsh, Australia
December
Weather in December
The first month of the summer, December, is still a pleasant month in Swan Marsh, Australia, with temperature in the range of an average high of 22.5°C (72.5°F) and an average low of 10.8°C (51.4°F).Temperature
The average high-temperature for December is a still pleasant 22.5°C (72.5°F), closely aligning with the temperature of the preceding month. Throughout December, a steady low-temperature average of 10.8°C (51.4°F) is noted.Humidity
In Swan Marsh, the average relative humidity in December is 70%.Rainfall
In December, in Swan Marsh, Australia, the rain falls for 11.5 days. Throughout December, 30mm (1.18") of precipitation is accumulated. In Swan Marsh, during the entire year, the rain falls for 164.9 days and collects up to 405mm (15.94") of precipitation.Snowfall
January through July, September through December are months without snowfall.Daylight
The month with the longest days is December, with an average of 14h and 48min of daylight.On the first day of the month, sunrise is at 5:56 am and sunset at 8:34 pm. On the last day of December, sunrise is at 6:05 am and sunset at 8:53 pm AEDT.
Sunshine
December has the most sunshine of the year, with an average of 8.7h of sunshine.UV index
December is the month with the highest UV index, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.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. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Swan Marsh, Australia
- Average high temperature in December: 22.5°C
The warmest month (with the highest average high temperature) is January (24.6°C).
The month with the lowest average high temperature is July (12°C).
- Average low temperature in December: 10.8°C
The month with the highest average low temperature is February (13.3°C).
The coldest month (with the lowest average low temperature) is August (5.4°C).
Average pressure in December
Swan Marsh, Australia
- Average pressure in December: 1013mbar
The month with the highest atmospheric pressure is June (1020.8mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Swan Marsh, Australia
- Average wind speed in December: 9.4km/h
The windiest month (with the highest average wind speed) is August (11.4km/h).
The calmest month (with the lowest average wind speed) is April (8.9km/h).
Average humidity in December
Swan Marsh, Australia
- Average humidity in December: 70%
The month with the highest relative humidity is June (85%).
The month with the lowest relative humidity is January (67%).
Average rainfall in December
Swan Marsh, Australia
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is August (44mm).
The driest month (with the least rainfall) is January (20mm).
Average rainfall days in December
Swan Marsh, Australia
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is August (18.4 days).
The months with the least rainy days are January and February (9.2 days).
Average snowfall in December
Swan Marsh, Australia
- Average snowfall in December: 0mm
The month with the highest snowfall is August (4mm).
The months with the least snowfall are January, February, March, April, May, June, July, September, October, November and December (0mm).
Average snowfall days in December
Swan Marsh, Australia
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is August (0.2 days).
The months with the least snowfall days are January, February, March, April, May, June, July, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Swan Marsh, Australia
- Average daylight in December: 14h and 48min
The month with the longest days is December (Average daylight: 14h and 48min).
The month with the shortest days is June (Average daylight: 9h and 30min).
- Average sunshine in December: 8h and 42min
The month with the most sunshine is December (Average sunshine: 8h and 42min).
The month with the least sunshine is August (Average sunshine: 5h and 30min).
Average sunshine days in December
Swan Marsh, Australia
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is August (9.6 days).
Average UV index in December
Swan Marsh, Australia
- Average UV index in December: 6
The month with the highest UV index is December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 3).
Average cloud cover in December
Swan Marsh, Australia
- Average cloud cover in December: 42
The month with the most cloud cover is August (Cloud cover 60).
The month with the least cloud cover is January (Cloud cover 36).
Average visibility in December
Swan Marsh, Australia
- Average visibility in December: 9km
The months with the highest visibility are January, February, March and December (9km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (8km).
