Weather in Sydney: December
|Average day temperature:||24.6°C|
|Average night temperature:||19.1°C|
|Sea water temperature:||21.2°C|
|Number of sunny days:||14 days|
|Day length:||14.2 - 14.4 hours|
|Number of rainy days:||3 days|
|Precipitation totals:||50.8 mm.|
Air temperature in December, °C
The highest day temperature during December of 2021 was 30°C. At the same time the lowest night temperature was 16°C. Daily and nightly averages during December were 21.6°C and 18.9°C.
Sea water temperature in Sydney in December, °C
The average sea water temperature in December of 2021 was 22.2°C. The highest and lowest sea temperatures during the month were class="nb">24.1°C and 19.7°C.
Mostly all days in December are sunny but cloudy days are also possible.
Precipitation total in December, mm
Precipitation total value in Sydney in December is 50.8 mm.
The average wind speed value in December is 4.9 m./s. The wind's strength is relatively same during the whole year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 8.9.
Best time for vacation in Sydney
Sydney on a weather map
|+16°C||N 11 m/s|