Extreme rain in Australia, 4 to 9 September 2025
Extreme rain in Australia, 4 to 9 September 2025: 145 records at 135 stations, peak on 6 September 2025. Closed.
Data as of . Last revised (2026-10-17).
Key Facts
- Extreme rain in Australia, 4 to 9 September 2025 set or tied 145 station records at 135 stations.
- It ran from 4 September 2025 to 9 September 2025 (6 days) and its peak day was 6 September 2025.
- Status: closed.
- Wanneroo set a monthly record daily precipitation of 65.0 mm (2.6 in) on 9 September 2025.
- The busiest day was 6 September 2025 with 100 records.
- The oldest broken record in the ranked list had stood for 118 years.
Footprint
4 to 9 September 2025| Station | Type | Value | Date |
|---|---|---|---|
| Wanneroo | Record daily precipitation | 65.0 mm (2.6 in) | 2025-09-09 |
| Cranbrook | Record daily precipitation | 38.0 mm (1.5 in) | 2025-09-08 |
| Cape Leeuwin | Record daily precipitation | 38.2 mm (1.5 in) | 2025-09-05 |
| Amelup | Record daily precipitation | 27.6 mm (1.1 in) | 2025-09-06 |
| Newbicup | Record daily precipitation | 36.0 mm (1.4 in) | 2025-09-06 |
| Eradu | Record daily precipitation | 25.6 mm (1.0 in) | 2025-09-06 |
| Innadong | Record daily precipitation | 31.0 mm (1.2 in) | 2025-09-06 |
| Nabawa | Record daily precipitation | 46.0 mm (1.8 in) | 2025-09-08 |
| Aston Downs | Record daily precipitation | 45.8 mm (1.8 in) | 2025-09-05 |
| Windy Harbour | Record daily precipitation | 73.2 mm (2.9 in) | 2025-09-06 |
| Deeside | Record daily precipitation | 45.8 mm (1.8 in) | 2025-09-06 |
| Naraling | Record daily precipitation | 41.2 mm (1.6 in) | 2025-09-06 |
| Chamingup | Record daily precipitation | 25.4 mm (1.0 in) | 2025-09-06 |
| Lower Chittering | Record daily precipitation | 41.0 mm (1.6 in) | 2025-09-06 |
| Pemberton | Record daily precipitation | 66.8 mm (2.6 in) | 2025-09-08 |
| Forest Grove | Record daily precipitation | 32.0 mm (1.3 in) | 2025-09-05 |
| Wydgee | Record daily precipitation | 11.3 mm (0.4 in) | 2025-09-06 |
| Mindalla | Record daily precipitation | 13.0 mm (0.5 in) | 2025-09-06 |
| Moningarin | Record daily precipitation | 12.8 mm (0.5 in) | 2025-09-06 |
| Milyunup | Record daily precipitation | 24.0 mm (0.9 in) | 2025-09-07 |
Records per Day
Peak day 100| Date | Records |
|---|---|
| 2025-09-04 | 2 |
| 2025-09-05 | 15 |
| 2025-09-06 | 100 |
| 2025-09-07 | 8 |
| 2025-09-08 | 12 |
| 2025-09-09 | 8 |
Top Records by Margin
Margin over the record replaced| Aston Downs, 09-05 | |
|---|---|
| Pemberton, 09-08 | |
| Windy Harbour, 09-06 | |
| Naraling, 09-06 | |
| Nabawa, 09-08 | |
| Wanneroo, 09-09 | |
| Cape Leeuwin, 09-05 | |
| Cranbrook, 09-08 | |
| Innadong, 09-06 | |
| Amelup, 09-06 | |
| Milyunup, 09-07 | |
| Newbicup, 09-06 | |
| Eradu, 09-06 | |
| Lower Chittering, 09-06 | |
| Forest Grove, 09-05 |
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 (mm) | Years the old record stood |
|---|---|
| 21 | 104 |
| 16 | 118 |
| 18 | 92 |
| 14 | 92 |
| 13 | 92 |
| 11 | 104 |
| 15 | 108 |
| 23 | 28 |
| 29 | 40 |
| 27 | 7 |
| 3 | 98 |
| 26 | 24 |
| 8 | 92 |
| 9 | 95 |
| 29 | 18 |
| 8 | 84 |
| 14 | 42 |
| 3 | 104 |
| 2 | 104 |
| 2 | 104 |
| 4 | 84 |
| 2 | 107 |
| 15 | 28 |
| 4 | 92 |
| 11 | 20 |
| 3 | 95 |
| 14 | 36 |
| 13 | 24 |
| 17 | 40 |
| 9 | 44 |
| 2 | 92 |
| 5 | 82 |
| 2 | 92 |
| 0 | 95 |
| 22 | 7 |
| 19 | 42 |
| 19 | 24 |
| 13 | 34 |
| 8 | 30 |
| 15 | 20 |
| 10 | 30 |
| 18 | 28 |
| 0 | 92 |
| 9 | 24 |
| 11 | 24 |
| 18 | 28 |
| 15 | 20 |
| 6 | 52 |
| 9 | 28 |
| 7 | 24 |
| 10 | 24 |
| 12 | 20 |
| 8 | 30 |
| 6 | 40 |
| 9 | 24 |
| 1 | 67 |
| 21 | 2 |
| 3 | 42 |
| 2 | 55 |
| 2 | 52 |
| 5 | 28 |
| 6 | 32 |
| 7 | 20 |
| 11 | 28 |
| 9 | 24 |
| 14 | 4 |
| 6 | 20 |
| 5 | 42 |
| 1 | 52 |
| 10 | 28 |
| 9 | 24 |
| 7 | 34 |
| 9 | 24 |
| 4 | 20 |
| 12 | 3 |
| 5 | 11 |
| 3 | 30 |
| 3 | 28 |
| 3 | 28 |
| 1 | 42 |
| 3 | 28 |
| 3 | 24 |
| 5 | 40 |
| 3 | 28 |
| 3 | 28 |
| 2 | 28 |
| 1 | 42 |
| 3 | 24 |
| 6 | 28 |
| 7 | 20 |
| 5 | 34 |
| 6 | 3 |
| 3 | 48 |
| 7 | 18 |
| 7 | 24 |
| 1 | 28 |
| 2 | 28 |
| 1 | 28 |
| 1 | 28 |
| 3 | 32 |
| 1 | 28 |
| 5 | 18 |
| 1 | 28 |
| 1 | 28 |
| 2 | 24 |
| 1 | 40 |
| 1 | 24 |
| 2 | 20 |
| 1 | 24 |
| 1 | 30 |
| 3 | 20 |
| 1 | 24 |
| 1 | 28 |
| 0 | 28 |
| 1 | 20 |
| 3 | 24 |
| 7 | 12 |
| 2 | 28 |
| 2 | 28 |
| 2 | 24 |
| 5 | 20 |
| 5 | 20 |
| 1 | 12 |
| 2 | 19 |
| 3 | 3 |
| 1 | 18 |
| 2 | 20 |
| 0 | 20 |
| 2 | 3 |
| 1 | 24 |
| 0 | 20 |
| 1 | 28 |
| 3 | 10 |
| 2 | 24 |
| 1 | 4 |
| 1 | 24 |
| 1 | 3 |
| 1 | 24 |
| 0 | 20 |
| 1 | 11 |
| 1 | 12 |
| 2 | 12 |
| 2 | 3 |
| 0 | 8 |
| 1 | 11 |
Compared With Other Events
Station records per event| Extreme rain in United States and Mexico, 23 February to 15 March 2019 | |
|---|---|
| Extreme rain in United States, 3 to 19 January 2024 | |
| Extreme rain in Australia, 7 to 26 March 2021 | |
| Extreme rain in United States and Mexico, 29 September to 19 October 2018 | |
| Extreme rain in United States, 19 December 2022 to 13 January 2023 | |
| Extreme rain in Australia, 4 to 9 September 2025 (this event) |
Every Record Set
20 of 145| Date | Station | Record | Value | Margin | Years stood | Significance |
|---|---|---|---|---|---|---|
| 2025-09-05 | Cape Leeuwin | Record daily precipitation | 38.2 mm (1.5 in) | 17.9 mm (0.7 in) | 92 | 67 of 100 (Major) |
| 2025-09-05 | Aston Downs | Record daily precipitation | 45.8 mm (1.8 in) | 29.2 mm (1.1 in) | 40 | 57 of 100 (Notable) |
| 2025-09-05 | Forest Grove | Record daily precipitation | 32.0 mm (1.3 in) | 8.1 mm (0.32 in) | 84 | 46 of 100 (Notable) |
| 2025-09-06 | Amelup | Record daily precipitation | 27.6 mm (1.1 in) | 13.9 mm (0.5 in) | 92 | 64 of 100 (Major) |
| 2025-09-06 | Newbicup | Record daily precipitation | 36.0 mm (1.4 in) | 12.9 mm (0.5 in) | 92 | 62 of 100 (Major) |
| 2025-09-06 | Eradu | Record daily precipitation | 25.6 mm (1.0 in) | 10.9 mm (0.4 in) | 104 | 61 of 100 (Major) |
| 2025-09-06 | Innadong | Record daily precipitation | 31.0 mm (1.2 in) | 15.3 mm (0.6 in) | 108 | 59 of 100 (Notable) |
| 2025-09-06 | Windy Harbour | Record daily precipitation | 73.2 mm (2.9 in) | 26.9 mm (1.1 in) | 7 | 56 of 100 (Notable) |
| 2025-09-06 | Deeside | Record daily precipitation | 45.8 mm (1.8 in) | 2.9 mm (0.11 in) | 98 | 53 of 100 (Notable) |
| 2025-09-06 | Naraling | Record daily precipitation | 41.2 mm (1.6 in) | 25.6 mm (1.0 in) | 24 | 51 of 100 (Notable) |
| 2025-09-06 | Chamingup | Record daily precipitation | 25.4 mm (1.0 in) | 7.6 mm (0.30 in) | 92 | 51 of 100 (Notable) |
| 2025-09-06 | Lower Chittering | Record daily precipitation | 41.0 mm (1.6 in) | 9.2 mm (0.36 in) | 95 | 50 of 100 (Notable) |
| 2025-09-06 | Wydgee | Record daily precipitation | 11.3 mm (0.4 in) | 2.7 mm (0.11 in) | 104 | 20 of 100 (Routine) |
| 2025-09-06 | Mindalla | Record daily precipitation | 13.0 mm (0.5 in) | 2.1 mm (0.08 in) | 104 | 20 of 100 (Routine) |
| 2025-09-06 | Moningarin | Record daily precipitation | 12.8 mm (0.5 in) | 2.4 mm (0.09 in) | 104 | 20 of 100 (Routine) |
| 2025-09-07 | Milyunup | Record daily precipitation | 24.0 mm (0.9 in) | 13.5 mm (0.5 in) | 42 | 20 of 100 (Routine) |
| 2025-09-08 | Cranbrook | Record daily precipitation | 38.0 mm (1.5 in) | 16.4 mm (0.6 in) | 118 | 74 of 100 (Major) |
| 2025-09-08 | Nabawa | Record daily precipitation | 46.0 mm (1.8 in) | 23.4 mm (0.9 in) | 28 | 58 of 100 (Notable) |
| 2025-09-08 | Pemberton | Record daily precipitation | 66.8 mm (2.6 in) | 28.8 mm (1.1 in) | 18 | 50 of 100 (Notable) |
| 2025-09-09 | Wanneroo | Record daily precipitation | 65.0 mm (2.6 in) | 21.3 mm (0.8 in) | 104 | 79 of 100 (Major) |
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.
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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.