Heat wave in Australia, 6 to 11 September 2025

Name: Heat wave in Australia, 6 to 11 September 2025
Start: 2025-09-06
End: 2025-09-11
Location: Australia

Heat wave in Australia, 6 to 11 September 2025: 145 records at 116 stations, peak on 7 September 2025. Closed.

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

Key Facts

Heat wave in Australia, 6 to 11 September 2025 set or tied 145 station records at 116 stations.
It ran from 6 September 2025 to 11 September 2025 (6 days) and its peak day was 7 September 2025.
Status: closed.
Bairnsdale Airport set a daily record high minimum temperature of 15.5 C (59.9 F) on 8 September 2025.
The busiest day was 7 September 2025 with 50 records.
The oldest broken record in the ranked list had stood for 104 years.

Footprint

6 to 11 September 2025

The area covered by Heat wave in Australia, 6 to 11 September 2025 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in Australia, 6 to 11 September 2025: stations that set records in the event
Station	Type	Value	Date
Bairnsdale Airport	Record high minimum temperature	15.5 C (59.9 F)	2025-09-08
Adelaide West Terrace	Record high maximum temperature	27.0 C (80.6 F)	2025-09-06
Menindee Post Office	Record high minimum temperature	19.0 C (66.2 F)	2025-09-07
Ceduna AMO	Record high minimum temperature	17.5 C (63.5 F)	2025-09-06
Essendon Airport	Record high minimum temperature	13.1 C (55.6 F)	2025-09-07
Wagga Wagga AMO	Record high minimum temperature	14.6 C (58.3 F)	2025-09-08
Ouyen (Post Office)	Record high minimum temperature	14.0 C (57.2 F)	2025-09-07
Hume Reservoir	Record high minimum temperature	13.1 C (55.6 F)	2025-09-08
Woomera Aerodrome	Record high maximum temperature	33.5 C (92.3 F)	2025-09-06
Mildura Airport	Record high minimum temperature	15.9 C (60.6 F)	2025-09-07
Yongala	Record high minimum temperature	13.9 C (57.0 F)	2025-09-07
Nyngan Airport	Record high minimum temperature	16.5 C (61.7 F)	2025-09-09
Kerang	Record high minimum temperature	12.6 C (54.7 F)	2025-09-07
Dartmouth Reservoir	Record high minimum temperature	11.5 C (52.7 F)	2025-09-08
Melbourne Airport	Record high minimum temperature	13.3 C (55.9 F)	2025-09-07
Lake Victoria Storage	Record high maximum temperature	30.0 C (86.0 F)	2025-09-07
Broken Hill Airport AWS	Record high minimum temperature	19.1 C (66.4 F)	2025-09-07
Tatura Inst Sustainable Ag	Record high minimum temperature	11.0 C (51.8 F)	2025-09-07
Oodnadatta Airport	Record high maximum temperature	35.7 C (96.3 F)	2025-09-06
Kimba	Record high maximum temperature	32.5 C (90.5 F)	2025-09-07

Records per Day

Peak day 50

Records set or tied each day from 6 September 2025 to 11 September 2025. The most in one day was 50 on 7 September 2025.

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in Australia, 6 to 11 September 2025 ranked by margin
Menindee Post Office, 09-07	5.7 C (10.3 F)
Broken Hill Airport AWS, 09-07	4.3 C (7.7 F)
Bairnsdale Airport, 09-08	4.1 C (7.4 F)
Mildura Airport, 09-07	3.9 C (7.0 F)
Lake Victoria Storage, 09-07	3.5 C (6.3 F)
Yongala, 09-07	3.4 C (6.1 F)
Ceduna AMO, 09-06	2.8 C (5.0 F)
Kimba, 09-07	2.7 C (4.9 F)
Ouyen (Post Office), 09-07	2.3 C (4.1 F)
Nyngan Airport, 09-09	2.3 C (4.1 F)
Dartmouth Reservoir, 09-08	2.3 C (4.1 F)
Melbourne Airport, 09-07	2.3 C (4.1 F)
Hume Reservoir, 09-08	2.0 C (3.6 F)
Essendon Airport, 09-07	1.9 C (3.4 F)
Kerang, 09-07	1.8 C (3.2 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

145 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, 6 to 11 September 2025
Margin (C)	Years the old record stood
4.1	80
0.4	104
5.7	64
2.8	80
1.9	82
1.7	76
2.3	66
2.0	60
0.9	72
3.9	34
3.4	44
2.3	55
1.8	52
2.3	47
2.3	44
3.5	34
4.3	24
1.4	52
0.1	52
2.7	44
1.0	55
0.8	44
0.3	44
4.2	34
3.0	20
4.5	20
1.9	18
1.0	44
0.2	44
0.2	52
2.4	28
0.7	44
0.3	52
3.6	24
5.0	20
2.9	20
0.8	44
4.3	28
2.7	18
0.7	42
0.4	44
0.7	34
4.7	16
0.1	44
0.2	34
0.8	34
2.8	20
0.1	32
0.9	34
0.6	34
2.1	32
3.7	4
0.6	34
2.1	32
1.0	34
1.7	32
1.6	20
0.3	34
0.4	32
4.6	4
5.5	4
1.0	32
2.2	20
2.5	8
1.5	22
0.2	32
0.3	32
0.1	34
0.3	32
1.6	28
2.6	20
2.0	11
0.1	32
0.5	24
2.5	4
3.7	0
0.1	32
0.6	32
1.9	12
3.4	4
4.1	4
0.2	27
1.4	23
0.5	20
3.0	3
2.4	16
0.9	27
2.4	4
2.1	4
3.4	4
0.5	28
2.6	2
2.7	3
1.5	18
1.4	12
3.3	4
3.6	3
0.9	20
0.2	12
0.7	12
1.8	8
1.6	2
1.2	2
2.4	0
1.7	12
1.1	4
0.8	12
0.4	20
0.3	8
1.1	12
0.5	18
0.3	4
1.2	12
1.0	4
0.3	20
1.9	3
2.1	4
0.1	20
1.9	4
2.5	0
0.2	12
2.2	3
1.5	4
0.6	4
0.5	12
0.3	16
1.4	2
0.8	7
0.5	8
0.4	12
0.8	4
0.7	4
1.1	2
0.3	12
0.1	12
0.3	12
0.3	8
1.0	3
0.5	4
0.6	4
0.7	4
0.4	4
0.5	0
0.1	4
0.1	0

Compared With Other Events

Station records per event

Station records in Heat wave in Australia, 6 to 11 September 2025 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 2024	9,869 records
Heat wave in United States, 28 January to 24 February 2026	6,528 records
Heat wave in United States and Mexico, 24 May to 19 June 2020	5,047 records
Heat wave in United States and Mexico, 26 March to 17 April 2021	3,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 2022	3,626 records
Heat wave in Australia, 6 to 11 September 2025 (this event)	145 records

Every Record Set

20 of 145

Every record set or tied during Heat wave in Australia, 6 to 11 September 2025, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2025-09-06	Adelaide West Terrace	Record high maximum temperature	27.0 C (80.6 F)	0.4 C (0.7 F)	104	41 of 100 (Notable)
2025-09-06	Ceduna AMO	Record high minimum temperature	17.5 C (63.5 F)	2.8 C (5.0 F)	80	38 of 100 (Notable)
2025-09-06	Woomera Aerodrome	Record high maximum temperature	33.5 C (92.3 F)	0.9 C (1.6 F)	72	29 of 100 (Routine)
2025-09-06	Oodnadatta Airport	Record high maximum temperature	35.7 C (96.3 F)	0.1 C (0.2 F)	52	23 of 100 (Routine)
2025-09-07	Menindee Post Office	Record high minimum temperature	19.0 C (66.2 F)	5.7 C (10.3 F)	64	41 of 100 (Notable)
2025-09-07	Essendon Airport	Record high minimum temperature	13.1 C (55.6 F)	1.9 C (3.4 F)	82	38 of 100 (Notable)
2025-09-07	Ouyen (Post Office)	Record high minimum temperature	14.0 C (57.2 F)	2.3 C (4.1 F)	66	31 of 100 (Routine)
2025-09-07	Mildura Airport	Record high minimum temperature	15.9 C (60.6 F)	3.9 C (7.0 F)	34	29 of 100 (Routine)
2025-09-07	Yongala	Record high minimum temperature	13.9 C (57.0 F)	3.4 C (6.1 F)	44	28 of 100 (Routine)
2025-09-07	Kerang	Record high minimum temperature	12.6 C (54.7 F)	1.8 C (3.2 F)	52	26 of 100 (Routine)
2025-09-07	Melbourne Airport	Record high minimum temperature	13.3 C (55.9 F)	2.3 C (4.1 F)	44	25 of 100 (Routine)
2025-09-07	Lake Victoria Storage	Record high maximum temperature	30.0 C (86.0 F)	3.5 C (6.3 F)	34	24 of 100 (Routine)
2025-09-07	Broken Hill Airport AWS	Record high minimum temperature	19.1 C (66.4 F)	4.3 C (7.7 F)	24	24 of 100 (Routine)
2025-09-07	Tatura Inst Sustainable Ag	Record high minimum temperature	11.0 C (51.8 F)	1.4 C (2.5 F)	52	24 of 100 (Routine)
2025-09-07	Kimba	Record high maximum temperature	32.5 C (90.5 F)	2.7 C (4.9 F)	44	23 of 100 (Routine)
2025-09-08	Bairnsdale Airport	Record high minimum temperature	15.5 C (59.9 F)	4.1 C (7.4 F)	80	44 of 100 (Notable)
2025-09-08	Wagga Wagga AMO	Record high minimum temperature	14.6 C (58.3 F)	1.7 C (3.1 F)	76	34 of 100 (Routine)
2025-09-08	Hume Reservoir	Record high minimum temperature	13.1 C (55.6 F)	2.0 C (3.6 F)	60	30 of 100 (Routine)
2025-09-08	Dartmouth Reservoir	Record high minimum temperature	11.5 C (52.7 F)	2.3 C (4.1 F)	47	26 of 100 (Routine)
2025-09-09	Nyngan Airport	Record high minimum temperature	16.5 C (61.7 F)	2.3 C (4.1 F)	55	28 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 145 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.

Margin (C)	Years the old record stood
4.1	80
0.4	104
5.7	64
2.8	80
1.9	82
1.7	76
2.3	66
2.0	60
0.9	72
3.9	34
3.4	44
2.3	55
1.8	52
2.3	47
2.3	44
3.5	34
4.3	24
1.4	52
0.1	52
2.7	44
1.0	55
0.8	44
0.3	44
4.2	34
3.0	20
4.5	20
1.9	18
1.0	44
0.2	44
0.2	52
2.4	28
0.7	44
0.3	52
3.6	24
5.0	20
2.9	20
0.8	44
4.3	28
2.7	18
0.7	42
0.4	44
0.7	34
4.7	16
0.1	44
0.2	34
0.8	34
2.8	20
0.1	32
0.9	34
0.6	34
2.1	32
3.7	4
0.6	34
2.1	32
1.0	34
1.7	32
1.6	20
0.3	34
0.4	32
4.6	4
5.5	4
1.0	32
2.2	20
2.5	8
1.5	22
0.2	32
0.3	32
0.1	34
0.3	32
1.6	28
2.6	20
2.0	11
0.1	32
0.5	24
2.5	4
3.7	0
0.1	32
0.6	32
1.9	12
3.4	4
4.1	4
0.2	27
1.4	23
0.5	20
3.0	3
2.4	16
0.9	27
2.4	4
2.1	4
3.4	4
0.5	28
2.6	2
2.7	3
1.5	18
1.4	12
3.3	4
3.6	3
0.9	20
0.2	12
0.7	12
1.8	8
1.6	2
1.2	2
2.4	0
1.7	12
1.1	4
0.8	12
0.4	20
0.3	8
1.1	12
0.5	18
0.3	4
1.2	12
1.0	4
0.3	20
1.9	3
2.1	4
0.1	20
1.9	4
2.5	0
0.2	12
2.2	3
1.5	4
0.6	4
0.5	12
0.3	16
1.4	2
0.8	7
0.5	8
0.4	12
0.8	4
0.7	4
1.1	2
0.3	12
0.1	12
0.3	12
0.3	8
1.0	3
0.5	4
0.6	4
0.7	4
0.4	4
0.5	0
0.1	4
0.1	0

Margin (C)	Years the old record stood
4.1	80
0.4	104
5.7	64
2.8	80
1.9	82
1.7	76
2.3	66
2.0	60
0.9	72
3.9	34
3.4	44
2.3	55
1.8	52
2.3	47
2.3	44
3.5	34
4.3	24
1.4	52
0.1	52
2.7	44
1.0	55
0.8	44
0.3	44
4.2	34
3.0	20
4.5	20
1.9	18
1.0	44
0.2	44
0.2	52
2.4	28
0.7	44
0.3	52
3.6	24
5.0	20
2.9	20
0.8	44
4.3	28
2.7	18
0.7	42
0.4	44
0.7	34
4.7	16
0.1	44
0.2	34
0.8	34
2.8	20
0.1	32
0.9	34
0.6	34
2.1	32
3.7	4
0.6	34
2.1	32
1.0	34
1.7	32
1.6	20
0.3	34
0.4	32
4.6	4
5.5	4
1.0	32
2.2	20
2.5	8
1.5	22
0.2	32
0.3	32
0.1	34
0.3	32
1.6	28
2.6	20
2.0	11
0.1	32
0.5	24
2.5	4
3.7	0
0.1	32
0.6	32
1.9	12
3.4	4
4.1	4
0.2	27
1.4	23
0.5	20
3.0	3
2.4	16
0.9	27
2.4	4
2.1	4
3.4	4
0.5	28
2.6	2
2.7	3
1.5	18
1.4	12
3.3	4
3.6	3
0.9	20
0.2	12
0.7	12
1.8	8
1.6	2
1.2	2
2.4	0
1.7	12
1.1	4
0.8	12
0.4	20
0.3	8
1.1	12
0.5	18
0.3	4
1.2	12
1.0	4
0.3	20
1.9	3
2.1	4
0.1	20
1.9	4
2.5	0
0.2	12
2.2	3
1.5	4
0.6	4
0.5	12
0.3	16
1.4	2
0.8	7
0.5	8
0.4	12
0.8	4
0.7	4
1.1	2
0.3	12
0.1	12
0.3	12
0.3	8
1.0	3
0.5	4
0.6	4
0.7	4
0.4	4
0.5	0
0.1	4
0.1	0