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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Heat wave in Australia, 19 to 26 June 2025

Heat wave in Australia, 19 to 26 June 2025: 303 records at 175 stations, peak on 23 June 2025. Closed.

Data as of . Last revised (2026-10-17).

Key Facts

  • Heat wave in Australia, 19 to 26 June 2025 set or tied 303 station records at 175 stations.
  • It ran from 19 June 2025 to 26 June 2025 (8 days) and its peak day was 23 June 2025.
  • Status: closed.
  • Cairns Post Office set a daily record high maximum temperature of 30.2 C (86.4 F) on 25 June 2025.
  • The busiest day was 23 June 2025 with 104 records.
  • The oldest broken record in the ranked list had stood for 99 years.

Footprint

19 to 26 June 2025
Footprint of Heat wave in Australia, 19 to 26 June 2025 The area covered by Heat wave in Australia, 19 to 26 June 2025 is outlined, with 18 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Australia, 19 to 26 June 2025 is outlined, with 18 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Australia, 19 to 26 June 2025: stations that set records in the event
StationTypeValueDate
Cairns Post OfficeRecord high maximum temperature30.2 C (86.4 F)2025-06-25
Mildura AirportRecord high maximum temperature23.2 C (73.8 F)2025-06-23
Wagga Wagga AMORecord high maximum temperature20.1 C (68.2 F)2025-06-23
Hillston AirportRecord high maximum temperature24.2 C (75.6 F)2025-06-23
Adelaide AirportRecord high maximum temperature22.6 C (72.7 F)2025-06-22
Wilsons Promontory LighthouseRecord high maximum temperature18.7 C (65.7 F)2025-06-23
Katoomba (Murri St)Record high maximum temperature17.6 C (63.7 F)2025-06-21
Lake Cargelligo AirportRecord high maximum temperature23.9 C (75.0 F)2025-06-23
Mount WellingtonRecord high maximum temperature11.4 C (52.5 F)2025-06-22
Adelaide West TerraceRecord high maximum temperature22.0 C (71.6 F)2025-06-22
Williamtown RaafRecord high maximum temperature21.8 C (71.2 F)2025-06-23
Laverton RaafRecord high maximum temperature20.2 C (68.4 F)2025-06-23
Ballarat AerodromeRecord high maximum temperature16.7 C (62.1 F)2025-06-23
Essendon AirportRecord high maximum temperature18.3 C (64.9 F)2025-06-23
Oodnadatta AirportRecord high maximum temperature27.4 C (81.3 F)2025-06-22
Mount BarkerRecord high maximum temperature20.2 C (68.4 F)2025-06-22
Menindee Post OfficeRecord high maximum temperature24.5 C (76.1 F)2025-06-23
Mackay AeroRecord high minimum temperature19.2 C (66.6 F)2025-06-25

Records per Day

Peak day 104
Records per day during Heat wave in Australia, 19 to 26 June 2025 Records set or tied each day from 19 June 2025 to 26 June 2025. The most in one day was 104 on 23 June 2025. 0 30 60 90 120 06-1906-2006-2106-2206-2306-2406-2506-26
Records set or tied each day from 19 June 2025 to 26 June 2025. The most in one day was 104 on 23 June 2025.
Records per day during Heat wave in Australia, 19 to 26 June 2025
DateRecords
2025-06-194
2025-06-2017
2025-06-2133
2025-06-2259
2025-06-23104
2025-06-2462
2025-06-2522
2025-06-262

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Australia, 19 to 26 June 2025 ranked by margin
Mount Wellington, 06-215.4 C (9.7 F)
Lake Cargelligo Airport, 06-233.9 C (7.0 F)
Hillston Airport, 06-233.6 C (6.5 F)
Wilsons Promontory Lighthouse, 06-233.2 C (5.8 F)
Mount Wellington, 06-223.0 C (5.4 F)
Mildura Airport, 06-232.6 C (4.7 F)
Katoomba (Murri St), 06-212.6 C (4.7 F)
Adelaide Airport, 06-222.5 C (4.5 F)
Wagga Wagga AMO, 06-232.4 C (4.3 F)
Menindee Post Office, 06-231.7 C (3.1 F)
Ballarat Aerodrome, 06-231.3 C (2.3 F)
Oodnadatta Airport, 06-221.3 C (2.3 F)
Mount Barker, 06-221.3 C (2.3 F)
Williamtown Raaf, 06-231.2 C (2.2 F)
Adelaide West Terrace, 06-221.1 C (2.0 F)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

Margin against age of the broken record in Heat wave in Australia, 19 to 26 June 2025 303 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right. 0 25 50 75 100 0.01.53.04.56.0 Margin (C) Years the old record stood
303 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right.
Margin against age of the broken record in Heat wave in Australia, 19 to 26 June 2025
Margin (C)Years the old record stood
0.899
2.671
2.475
3.667
2.566
3.240
2.667
3.956
1.166
1.267
0.971
3.058
0.668
1.368
1.066
5.416
1.360
1.366
1.171
1.766
0.667
3.134
1.947
2.940
0.167
0.868
0.950
0.268
0.367
3.024
3.219
3.48
0.550
0.167
0.752
0.566
3.038
2.734
1.748
0.954
3.616
0.360
1.352
2.234
1.050
3.116
2.928
0.952
0.850
0.552
1.040
1.934
0.550
1.634
1.838
3.53
3.28
2.58
1.328
0.252
2.120
1.434
0.150
0.450
3.111
0.734
0.742
1.534
1.624
2.620
2.427
2.915
1.624
0.640
0.642
2.319
2.48
0.840
1.724
2.420
0.931
1.924
2.410
2.426
1.130
1.916
3.011
1.824
1.231
3.010
1.824
0.142
2.319
1.632
2.719
2.011
1.224
1.328
1.628
3.08
3.08
1.714
2.116
2.116
0.720
0.831
0.434
2.310
0.436
1.228
0.428
2.68
0.931
1.98
0.122
2.42
1.028
2.22
1.916
2.07
1.034
2.416
1.134
1.034
1.234
0.431
1.710
1.310
1.411
2.210
2.43
0.82
1.48
2.48
1.015
1.10
0.528
0.531
0.528
1.016
1.83
1.920
1.310
1.416
0.631
0.128
0.522
1.219
0.424
0.428
1.220
2.28
0.631
0.816
0.731
0.631
0.434
1.316
1.616
1.411
0.424
2.18
1.516
1.515
1.010
0.628
2.38
0.234
1.127
1.220
0.231
1.110
1.015
0.928
0.910
0.320
0.524
0.816
0.528
0.427
1.419
0.916
0.624
0.320
0.131
0.920
2.08
0.231
2.08
0.428
1.216
0.810
1.210
1.216
0.920
1.60
0.610
1.019
0.816
0.215

Compared With Other Events

Station records per event
Station records in Heat wave in Australia, 19 to 26 June 2025 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 20249,869 records
Heat wave in United States, 28 January to 24 February 20266,528 records
Heat wave in United States and Mexico, 24 May to 19 June 20205,047 records
Heat wave in United States and Mexico, 26 March to 17 April 20213,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 20223,626 records
Heat wave in Australia, 19 to 26 June 2025 (this event)303 records

Every Record Set

20 of 303
Every record set or tied during Heat wave in Australia, 19 to 26 June 2025, in date order
DateStationRecordValueMarginYears stoodSignificance
2025-06-21Katoomba (Murri St)Record high maximum temperature17.6 C (63.7 F)2.6 C (4.7 F)6735 of 100 (Notable)
2025-06-21Mount WellingtonRecord high minimum temperature8.2 C (46.8 F)5.4 C (9.7 F)1631 of 100 (Routine)
2025-06-22Adelaide AirportRecord high maximum temperature22.6 C (72.7 F)2.5 C (4.5 F)6637 of 100 (Notable)
2025-06-22Adelaide West TerraceRecord high maximum temperature22.0 C (71.6 F)1.1 C (2.0 F)6633 of 100 (Routine)
2025-06-22Mount WellingtonRecord high maximum temperature11.4 C (52.5 F)3.0 C (5.4 F)5833 of 100 (Routine)
2025-06-22Adelaide West TerraceRecord high minimum temperature13.5 C (56.3 F)0.6 C (1.1 F)6832 of 100 (Routine)
2025-06-22Oodnadatta AirportRecord high maximum temperature27.4 C (81.3 F)1.3 C (2.3 F)6030 of 100 (Routine)
2025-06-22Mount BarkerRecord high maximum temperature20.2 C (68.4 F)1.3 C (2.3 F)6630 of 100 (Routine)
2025-06-23Mildura AirportRecord high maximum temperature23.2 C (73.8 F)2.6 C (4.7 F)7139 of 100 (Notable)
2025-06-23Wagga Wagga AMORecord high maximum temperature20.1 C (68.2 F)2.4 C (4.3 F)7538 of 100 (Notable)
2025-06-23Hillston AirportRecord high maximum temperature24.2 C (75.6 F)3.6 C (6.5 F)6738 of 100 (Notable)
2025-06-23Wilsons Promontory LighthouseRecord high maximum temperature18.7 C (65.7 F)3.2 C (5.8 F)4036 of 100 (Notable)
2025-06-23Lake Cargelligo AirportRecord high maximum temperature23.9 C (75.0 F)3.9 C (7.0 F)5635 of 100 (Notable)
2025-06-23Williamtown RaafRecord high maximum temperature21.8 C (71.2 F)1.2 C (2.2 F)6733 of 100 (Routine)
2025-06-23Laverton RaafRecord high maximum temperature20.2 C (68.4 F)0.9 C (1.6 F)7133 of 100 (Routine)
2025-06-23Ballarat AerodromeRecord high maximum temperature16.7 C (62.1 F)1.3 C (2.3 F)6832 of 100 (Routine)
2025-06-23Essendon AirportRecord high maximum temperature18.3 C (64.9 F)1.0 C (1.8 F)6631 of 100 (Routine)
2025-06-23Menindee Post OfficeRecord high maximum temperature24.5 C (76.1 F)1.7 C (3.1 F)6630 of 100 (Routine)
2025-06-25Cairns Post OfficeRecord high maximum temperature30.2 C (86.4 F)0.8 C (1.4 F)9943 of 100 (Notable)
2025-06-25Mackay AeroRecord high minimum temperature19.2 C (66.6 F)1.1 C (2.0 F)7130 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 303 records the event counts. The counts above use the full total.

Download the Data

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.