Extreme rain in Australia, 26 August to 1 September 2025
Extreme rain in Australia, 26 August to 1 September 2025: 115 records at 99 stations, peak on 28 August 2025. Closed.
Data as of . Last revised (2026-10-17).
Key Facts
- Extreme rain in Australia, 26 August to 1 September 2025 set or tied 115 station records at 99 stations.
- It ran from 26 August 2025 to 1 September 2025 (7 days) and its peak day was 28 August 2025.
- Status: closed.
- Casterton (Roseneath) set a daily record precipitation of 34.4 mm (1.4 in) on 29 August 2025.
- The busiest day was 27 August 2025 with 28 records.
- The oldest broken record in the ranked list had stood for 131 years.
Footprint
26 August to 1 September 2025| Station | Type | Value | Date |
|---|---|---|---|
| Casterton (Roseneath) | Record daily precipitation | 34.4 mm (1.4 in) | 2025-08-29 |
| Strathdownie | Record daily precipitation | 31.0 mm (1.2 in) | 2025-08-28 |
| Mount Gambier Aero | Record daily precipitation | 27.0 mm (1.1 in) | 2025-08-28 |
| Mount Buller | Record daily precipitation | 66.0 mm (2.6 in) | 2025-08-28 |
| Coleraine Hospital | Record daily precipitation | 27.0 mm (1.1 in) | 2025-08-28 |
| Parkham (Avenue Road) | Record daily precipitation | 53.0 mm (2.1 in) | 2025-08-27 |
| Port Campbell Post Office | Record daily precipitation | 37.6 mm (1.5 in) | 2025-08-28 |
| Flinders Island Airport | Record daily precipitation | 35.4 mm (1.4 in) | 2025-08-30 |
| Mirboo North Water Board | Record daily precipitation | 30.0 mm (1.2 in) | 2025-08-27 |
| Whitemark Post Office | Record daily precipitation | 33.0 mm (1.3 in) | 2025-08-30 |
| Hagley (Fairbank) | Record daily precipitation | 32.0 mm (1.3 in) | 2025-08-27 |
| Lake St Clair National Park | Record daily precipitation | 96.2 mm (3.8 in) | 2025-08-31 |
| Korumburra | Record daily precipitation | 22.8 mm (0.9 in) | 2025-08-27 |
| Connorville (Lake River) | Record daily precipitation | 23.6 mm (0.9 in) | 2025-08-27 |
| Port Vincent | Record daily precipitation | 12.0 mm (0.5 in) | 2025-08-28 |
| Parafield Airport | Record daily precipitation | 20.6 mm (0.8 in) | 2025-08-29 |
| Keith | Record daily precipitation | 16.8 mm (0.7 in) | 2025-08-29 |
| Wirrega (Taunton) | Record daily precipitation | 22.6 mm (0.9 in) | 2025-08-29 |
| Yarrangobilly Caves | Record daily precipitation | 22.2 mm (0.9 in) | 2025-08-29 |
| Marlo | Record daily precipitation | 16.2 mm (0.6 in) | 2025-08-30 |
Records per Day
Peak day 28| Date | Records |
|---|---|
| 2025-08-26 | 5 |
| 2025-08-27 | 28 |
| 2025-08-28 | 28 |
| 2025-08-29 | 27 |
| 2025-08-30 | 23 |
| 2025-08-31 | 3 |
| 2025-09-01 | 1 |
Top Records by Margin
Margin over the record replacedMargin 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 |
|---|---|
| 11 | 114 |
| 11 | 131 |
| 21 | 40 |
| 17 | 55 |
| 43 | 36 |
| 14 | 40 |
| 15 | 56 |
| 25 | 55 |
| 17 | 51 |
| 15 | 74 |
| 8 | 108 |
| 6 | 100 |
| 17 | 51 |
| 9 | 52 |
| 5 | 107 |
| 3 | 99 |
| 16 | 55 |
| 3 | 92 |
| 5 | 86 |
| 62 | 0 |
| 1 | 108 |
| 23 | 36 |
| 7 | 56 |
| 10 | 39 |
| 26 | 50 |
| 1 | 86 |
| 5 | 60 |
| 10 | 55 |
| 4 | 52 |
| 11 | 34 |
| 1 | 83 |
| 24 | 26 |
| 8 | 40 |
| 8 | 51 |
| 28 | 22 |
| 8 | 56 |
| 4 | 52 |
| 4 | 62 |
| 21 | 26 |
| 4 | 51 |
| 8 | 55 |
| 2 | 52 |
| 8 | 34 |
| 12 | 24 |
| 3 | 52 |
| 11 | 34 |
| 11 | 26 |
| 1 | 67 |
| 3 | 46 |
| 12 | 23 |
| 4 | 40 |
| 6 | 35 |
| 9 | 28 |
| 2 | 51 |
| 3 | 55 |
| 4 | 40 |
| 8 | 16 |
| 3 | 44 |
| 10 | 28 |
| 6 | 26 |
| 6 | 26 |
| 2 | 50 |
| 10 | 8 |
| 4 | 40 |
| 1 | 56 |
| 14 | 24 |
| 1 | 46 |
| 10 | 0 |
| 4 | 36 |
| 2 | 35 |
| 4 | 24 |
| 4 | 20 |
| 3 | 32 |
| 6 | 26 |
| 3 | 32 |
| 4 | 24 |
| 3 | 28 |
| 17 | 2 |
| 2 | 16 |
| 5 | 24 |
| 5 | 26 |
| 0 | 40 |
| 4 | 4 |
| 2 | 24 |
| 3 | 24 |
| 2 | 36 |
| 1 | 36 |
| 1 | 36 |
| 1 | 36 |
| 7 | 23 |
| 3 | 20 |
| 2 | 15 |
| 4 | 28 |
| 3 | 24 |
| 3 | 26 |
| 1 | 20 |
| 2 | 14 |
| 0 | 23 |
| 1 | 20 |
| 7 | 15 |
| 3 | 3 |
| 2 | 26 |
| 2 | 15 |
| 4 | 16 |
| 1 | 24 |
| 5 | 3 |
| 0 | 16 |
| 1 | 26 |
| 4 | 3 |
| 0 | 20 |
| 0 | 12 |
| 1 | 3 |
| 1 | 12 |
| 0 | 4 |
| 0 | 2 |
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, 26 August to 1 September 2025 (this event) |
Every Record Set
20 of 115| Date | Station | Record | Value | Margin | Years stood | Significance |
|---|---|---|---|---|---|---|
| 2025-08-27 | Parkham (Avenue Road) | Record daily precipitation | 53.0 mm (2.1 in) | 24.6 mm (1.0 in) | 55 | 51 of 100 (Notable) |
| 2025-08-27 | Mirboo North Water Board | Record daily precipitation | 30.0 mm (1.2 in) | 14.5 mm (0.6 in) | 74 | 50 of 100 (Notable) |
| 2025-08-27 | Hagley (Fairbank) | Record daily precipitation | 32.0 mm (1.3 in) | 15.7 mm (0.6 in) | 55 | 45 of 100 (Notable) |
| 2025-08-27 | Korumburra | Record daily precipitation | 22.8 mm (0.9 in) | 6.3 mm (0.25 in) | 100 | 20 of 100 (Routine) |
| 2025-08-27 | Connorville (Lake River) | Record daily precipitation | 23.6 mm (0.9 in) | 5.3 mm (0.21 in) | 86 | 20 of 100 (Routine) |
| 2025-08-28 | Strathdownie | Record daily precipitation | 31.0 mm (1.2 in) | 20.8 mm (0.8 in) | 40 | 58 of 100 (Notable) |
| 2025-08-28 | Mount Gambier Aero | Record daily precipitation | 27.0 mm (1.1 in) | 17.1 mm (0.7 in) | 55 | 57 of 100 (Notable) |
| 2025-08-28 | Mount Buller | Record daily precipitation | 66.0 mm (2.6 in) | 43.0 mm (1.7 in) | 36 | 56 of 100 (Notable) |
| 2025-08-28 | Coleraine Hospital | Record daily precipitation | 27.0 mm (1.1 in) | 13.6 mm (0.5 in) | 40 | 52 of 100 (Notable) |
| 2025-08-28 | Port Campbell Post Office | Record daily precipitation | 37.6 mm (1.5 in) | 14.5 mm (0.6 in) | 56 | 51 of 100 (Notable) |
| 2025-08-28 | Port Vincent | Record daily precipitation | 12.0 mm (0.5 in) | 2.6 mm (0.10 in) | 99 | 20 of 100 (Routine) |
| 2025-08-29 | Casterton (Roseneath) | Record daily precipitation | 34.4 mm (1.4 in) | 11.0 mm (0.4 in) | 131 | 60 of 100 (Major) |
| 2025-08-29 | Parafield Airport | Record daily precipitation | 20.6 mm (0.8 in) | 9.4 mm (0.37 in) | 52 | 20 of 100 (Routine) |
| 2025-08-29 | Keith | Record daily precipitation | 16.8 mm (0.7 in) | 2.8 mm (0.11 in) | 92 | 20 of 100 (Routine) |
| 2025-08-29 | Wirrega (Taunton) | Record daily precipitation | 22.6 mm (0.9 in) | 11.2 mm (0.4 in) | 114 | 20 of 100 (Routine) |
| 2025-08-29 | Yarrangobilly Caves | Record daily precipitation | 22.2 mm (0.9 in) | 8.2 mm (0.32 in) | 108 | 20 of 100 (Routine) |
| 2025-08-30 | Flinders Island Airport | Record daily precipitation | 35.4 mm (1.4 in) | 17.0 mm (0.7 in) | 51 | 51 of 100 (Notable) |
| 2025-08-30 | Whitemark Post Office | Record daily precipitation | 33.0 mm (1.3 in) | 17.0 mm (0.7 in) | 51 | 47 of 100 (Notable) |
| 2025-08-30 | Marlo | Record daily precipitation | 16.2 mm (0.6 in) | 5.3 mm (0.21 in) | 107 | 20 of 100 (Routine) |
| 2025-08-31 | Lake St Clair National Park | Record daily precipitation | 96.2 mm (3.8 in) | 62.0 mm (2.4 in) | 0 | 43 of 100 (Notable) |
The daily ledgers keep a limited number of records per day, so this list has 20 of the 115 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.