Wollongong weather in December
Long-run climate averages for Wollongong, New South Wales in December, plus what the forecast models say for the days ahead.
In December, Wollongong averages 25°C by day and 17°C at night. The wettest month is usually April.
December in Wollongong averages a daytime high of 25°C and an overnight low of 17°C, which reads as warm for this part of the world. Across the whole year Wollongong sees roughly 1201 mm of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Wollongong forecast with every model compared and how much they currently agree.
Wollongong weather by month
what to expect in Wollongong through the yearHere is Wollongong's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Wollongong by season.
Bottom line: over the last 30 days the German model has been the most accurate forecast for Wollongong, scoring 81/100 on our CheckWeather Score, ahead of the European at 78. See the full AU accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Wollongong in December?
Is December a good time to visit Wollongong?
Does it rain a lot in Wollongong in December?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .