December weather forecastSaint Kilda, Australia
December
Weather in December
The first month of the summer, December, is also an agreeable month in Saint Kilda, Australia, with an average temperature ranging between min 13.7°C (56.7°F) and max 22.4°C (72.3°F).Temperature
The transition into December shows a subtle variation to a still agreeable 22.4°C (72.3°F) from November's 20.5°C (68.9°F) in the average high-temperature. Throughout December nights, Saint Kilda registers an average low-temperature of 13.7°C (56.7°F).Humidity
In December, the average relative humidity is 68%.Rainfall
In Saint Kilda, in December, during 13.3 rainfall days, 45mm (1.77") of precipitation is typically accumulated. In Saint Kilda, Australia, during the entire year, the rain falls for 167.4 days and collects up to 479mm (18.86") of precipitation.Sea temperature
In December, the average sea temperature in Saint Kilda is 17.5°C (63.5°F).Note: For swimming, a surface water temperature of 17.5°C (63.5°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
With an average of 14h and 42min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 5:51 am and sunset at 8:26 pm. On the last day of December, sunrise is at 6:00 am and sunset at 8:45 pm AEDT.
Sunshine
December has the most sunshine of the year, with an average of 9.5h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 5 in December leads to these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saint Kilda, Australia
- Average high temperature in December: 22.4°C
The warmest month (with the highest average high temperature) is February (24.2°C).
The month with the lowest average high temperature is July (13°C).
- Average low temperature in December: 13.7°C
The month with the highest average low temperature is February (15.8°C).
The coldest month (with the lowest average low temperature) is August (8°C).
Average pressure in December
Saint Kilda, Australia
- Average pressure in December: 1012.7mbar
The month with the highest atmospheric pressure is June (1021.2mbar).
The month with the lowest atmospheric pressure is January (1012.5mbar).
Average wind speed in December
Saint Kilda, Australia
- Average wind speed in December: 13km/h
The windiest month (with the highest average wind speed) is August (17.2km/h).
The calmest month (with the lowest average wind speed) is April (12.9km/h).
Average humidity in December
Saint Kilda, Australia
- Average humidity in December: 68%
The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is January (66%).
Average rainfall in December
Saint Kilda, Australia
- Average rainfall in December: 45mm
The wettest month (with the highest rainfall) is May (48mm).
The driest months (with the least rainfall) are March and July (34mm).
Average rainfall days in December
Saint Kilda, Australia
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is August (16.5 days).
The month with the least rainy days is February (10.2 days).
Average sea temperature in December
Saint Kilda, Australia
- Average sea temperature in December: 17.5°C
The best month for swimming (with the highest average sea temperature) is February (18.8°C).
The coldest month (with the lowest average sea temperature) is September (14.7°C).
Average daylight in December /
Average sunshine in December
Saint Kilda, Australia
- Average daylight in December: 14h and 42min
The month with the longest days is December (Average daylight: 14h and 42min).
The month with the shortest days is June (Average daylight: 9h and 36min).
- Average sunshine in December: 9h and 30min
The month with the most sunshine is December (Average sunshine: 9h and 30min).
The months with the least sunshine are May and August (Average sunshine: 6h and 24min).
Average sunshine days in December
Saint Kilda, Australia
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is January (16.1 days).
The month with the least sunshine days is September (11.9 days).
Average UV index in December
Saint Kilda, Australia
- Average UV index in December: 5
The months with the highest UV index are January, February, March, October, November and December (UV index 5).
The month with the lowest UV index is June (UV index 3).
Average cloud cover in December
Saint Kilda, Australia
- Average cloud cover in December: 36
The months with the most cloud cover are July and August (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 32).
Average visibility in December
Saint Kilda, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June and December (10km).
The months with the lowest visibility are May, July, August, September, October and November (9km).
