Adelaide Weather: Record-Breaking December Heat as Summer Arrives
Why Adelaide Weather Matters This Summer
Adelaide’s weather patterns significantly impact daily life for residents and visitors, from outdoor activities to energy consumption. As Australia’s fifth-largest city experiences the arrival of summer, understanding current weather trends becomes essential for planning holiday activities, managing heat-related health risks, and preparing for the festive season.
December 2024: Above-Average Temperatures Dominate
Mean maximum temperatures for December at all sites across Adelaide and the Hills were above average, with December mean maximum temperatures for Greater Adelaide ranging from 1.4°C above average at Noarlunga to 3.9°C above average at Mount Lofty. The mean daily minimum temperature for Adelaide (West Terrace / ngayirdapira) was 16.0°C, which is 0.9°C above the long-term average of 15.1°C.
On the 16th, Kuitpo Forest Reserve recorded a daily minimum temperature of 27.1°C, equalling its warmest December night on record. However, rainfall totals for December were close to average or below average at all sites across Adelaide and the Hills, with December rainfall totals ranging from 47% at Mount Crawford to 98% of average at Kuitpo Forest Reserve.
Christmas Week Outlook: Hot and Changeable Conditions
The weather will significantly warm up on Christmas Day, Wednesday, 25 December, with clear sunny skies and temperatures soaring to a high of 37 degrees. Adelaide can expect a mixed bag of weather in the coming days, transitioning from partly cloudy skies to sunshine and possible showers.
Partly cloudy conditions are expected with medium chance of showers, becoming less likely in the afternoon, and the chance of a thunderstorm in the late morning and early afternoon.
What This Means for Adelaide Residents
The above-average temperatures and warm conditions ahead highlight the importance of heat preparedness during this summer season. With Christmas Day forecasted to reach 37°C, residents and visitors should stay hydrated, seek shade during peak heat hours, and take sun protection seriously. The variability in weather patterns—from hot sunny days to potential showers—requires flexible planning for outdoor celebrations and activities throughout the festive period.