Climate of Adelaide
However, the weather, like Melbourne, Victoria, can be rather changeable as it is not uncommon to have days where the temperature peaks in the low 20s when there is a cool southerly wind blowing cooler air from the Southern Ocean.
Winter in Adelaide also sees quite a significant wind chill, which makes the apparent temperature seem colder than it actually is.
Winter has fairly reliable rainfall with June being the wettest month of the year, averaging around 80 mm.
[3] Despite the warmer days, with little cloud cover, overnight temperatures can drop quickly, minimums varying between 9.2 and 13.1 °C.
[citation needed] During January and February 2009 Adelaide was affected by the early 2009 southeastern Australia heat wave.
The heatwave broke numerous records and affected all of south-eastern Australia, including Melbourne, where some outdoor games were cancelled during the 2009 Australian Open.
Spring 2015 daytime maximum temperatures ended up averaging 24.6 °C (76.3 °F), the second highest on record just falling short of 1914.
[31] Following one of Adelaide's hottest nights on record, in mid December 2015, temperatures soared above 40 °C (104 °F) for 4 consecutive days between the 16th and 19th, with the warmest being the 19th at 43.2 °C (109.8 °F).
December 2015 ended up being the warmest on record with daily maximum temperatures averaging 32.5 °C (90.5 °F) and 7 days above 40 °C (104 °F).
This continues the trend that Adelaide has experienced since the early 2000s of summer heat exceeding maximum temperatures and breaking records.
Rain during this period increased the humidity level in the city, and flash flooding was recorded in the suburbs, as temperatures dropped back into the high 20s on 9 March.
[35] Agricultural regions across South Australia were also affected, experiencing the third driest winter on record.
The unusual warmth also produced some of the highest April temperatures of all time, including a record equalling 36.9 °C (98.5 °F) on the 11th.
[37] January 2019 was also one of the warmest months on record[citation needed] with an average daily maximum temperature of 33 °C (91.4 °F).
Only 7 of the first 120 days of the year recorded over 1mm of rain with the highest daily total for the four months being 2.8mm on 13 February.
[38] Between 17 and 20 December 2019, the official Adelaide weather observation station (West Terrace) recorded 4 consecutive days above 42 °C (107.6 °F).
The only other warmer November was in 2009 when the official weather observation station was Adelaide (Kent Town) not West Terrace.
