Extreme rain in Australia, 9 to 11 August 2026
Extreme rain in Australia, 9 to 11 August 2026: 18 records at 14 stations, peak on 11 August 2026. Closed.
Data as of . Last revised (2026-10-17).
Key Facts
- Extreme rain in Australia, 9 to 11 August 2026 set or tied 18 station records at 14 stations.
- It ran from 9 August 2026 to 11 August 2026 (3 days) and its peak day was 11 August 2026.
- Status: closed.
- Pleasant Valley set a daily record precipitation of 30.4 mm (1.2 in) on 10 August 2026.
- The busiest day was 11 August 2026 with 9 records.
- The oldest broken record in the ranked list had stood for 76 years.
Footprint
9 to 11 August 2026| Station | Type | Value | Date |
|---|---|---|---|
| Pleasant Valley | Record daily precipitation | 30.4 mm (1.2 in) | 2026-08-10 |
| Esperance Aero | Record daily precipitation | 31.8 mm (1.3 in) | 2026-08-11 |
| Myrup | Record daily precipitation | 28.2 mm (1.1 in) | 2026-08-11 |
| Telina Downs | Record daily precipitation | 28.0 mm (1.1 in) | 2026-08-11 |
| Oake Marsh Farm | Record daily precipitation | 28.5 mm (1.1 in) | 2026-08-11 |
| Erinair | Record daily precipitation | 26.8 mm (1.1 in) | 2026-08-11 |
| The Duke | Record daily precipitation | 19.0 mm (0.7 in) | 2026-08-09 |
| Gorya Valley | Record daily precipitation | 17.3 mm (0.7 in) | 2026-08-09 |
| Mount Ridley | Record daily precipitation | 18.2 mm (0.7 in) | 2026-08-09 |
| Beaumont West | Record daily precipitation | 21.0 mm (0.8 in) | 2026-08-11 |
| Munglinup | Record daily precipitation | 21.0 mm (0.8 in) | 2026-08-11 |
| Richfields | Record daily precipitation | 22.0 mm (0.9 in) | 2026-08-10 |
| Hopetoun North | Record daily precipitation | 17.8 mm (0.7 in) | 2026-08-11 |
| Sparkle Hill | Record daily precipitation | 14.6 mm (0.6 in) | 2026-08-09 |
Records per Day
Peak day 9| Date | Records |
|---|---|
| 2026-08-09 | 7 |
| 2026-08-10 | 2 |
| 2026-08-11 | 9 |
Top Records by Margin
Margin over the record replaced| Esperance Aero, 08-11 | |
|---|---|
| Telina Downs, 08-11 | |
| Oake Marsh Farm, 08-11 | |
| Myrup, 08-11 | |
| Beaumont West, 08-11 | |
| Munglinup, 08-11 | |
| Hopetoun North, 08-11 | |
| Pleasant Valley, 08-10 | |
| Richfields, 08-10 | |
| Esperance Aero, 08-09 | |
| Mount Ridley, 08-09 | |
| The Duke, 08-09 | |
| Mount Ridley, 08-11 | |
| Erinair, 08-11 | |
| Beaumont West, 08-09 |
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 |
|---|---|
| 9 | 76 |
| 19 | 8 |
| 2 | 76 |
| 10 | 27 |
| 14 | 4 |
| 10 | 27 |
| 8 | 25 |
| 9 | 27 |
| 5 | 40 |
| 8 | 8 |
| 5 | 27 |
| 9 | 8 |
| 9 | 4 |
| 9 | 3 |
| 5 | 25 |
| 4 | 15 |
| 4 | 12 |
| 2 | 8 |
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, 9 to 11 August 2026 (this event) |
Every Record Set
18 of 18| Date | Station | Record | Value | Margin | Years stood | Significance |
|---|---|---|---|---|---|---|
| 2026-08-09 | Esperance Aero | Record daily precipitation | 22.6 mm (0.9 in) | 8.4 mm (0.33 in) | 25 | 20 of 100 (Routine) |
| 2026-08-09 | The Duke | Record daily precipitation | 19.0 mm (0.7 in) | 5.4 mm (0.21 in) | 25 | 20 of 100 (Routine) |
| 2026-08-09 | Gorya Valley | Record daily precipitation | 17.3 mm (0.7 in) | 2.3 mm (0.09 in) | 76 | 20 of 100 (Routine) |
| 2026-08-09 | Mount Ridley | Record daily precipitation | 18.2 mm (0.7 in) | 7.6 mm (0.30 in) | 8 | 20 of 100 (Routine) |
| 2026-08-09 | Beaumont West | Record daily precipitation | 16.0 mm (0.6 in) | 3.8 mm (0.15 in) | 15 | 15 of 100 (Routine) |
| 2026-08-09 | Sparkle Hill | Record daily precipitation | 14.6 mm (0.6 in) | 3.6 mm (0.14 in) | 12 | 14 of 100 (Routine) |
| 2026-08-09 | Munglinup | Record daily precipitation | 19.0 mm (0.7 in) | 2.0 mm (0.08 in) | 8 | 10 of 100 (Routine) |
| 2026-08-10 | Pleasant Valley | Record daily precipitation | 30.4 mm (1.2 in) | 8.6 mm (0.34 in) | 76 | 44 of 100 (Notable) |
| 2026-08-10 | Richfields | Record daily precipitation | 22.0 mm (0.9 in) | 8.5 mm (0.33 in) | 4 | 20 of 100 (Routine) |
| 2026-08-11 | Esperance Aero | Record daily precipitation | 31.8 mm (1.3 in) | 19.2 mm (0.8 in) | 8 | 42 of 100 (Notable) |
| 2026-08-11 | Myrup | Record daily precipitation | 28.2 mm (1.1 in) | 10.2 mm (0.4 in) | 27 | 33 of 100 (Routine) |
| 2026-08-11 | Telina Downs | Record daily precipitation | 28.0 mm (1.1 in) | 14.4 mm (0.6 in) | 4 | 32 of 100 (Routine) |
| 2026-08-11 | Oake Marsh Farm | Record daily precipitation | 28.5 mm (1.1 in) | 10.3 mm (0.4 in) | 27 | 31 of 100 (Routine) |
| 2026-08-11 | Erinair | Record daily precipitation | 26.8 mm (1.1 in) | 5.0 mm (0.20 in) | 40 | 25 of 100 (Routine) |
| 2026-08-11 | Munglinup | Record daily precipitation | 21.0 mm (0.8 in) | 8.8 mm (0.35 in) | 8 | 20 of 100 (Routine) |
| 2026-08-11 | Hopetoun North | Record daily precipitation | 17.8 mm (0.7 in) | 8.8 mm (0.35 in) | 27 | 20 of 100 (Routine) |
| 2026-08-11 | Beaumont West | Record daily precipitation | 21.0 mm (0.8 in) | 9.2 mm (0.36 in) | 3 | 20 of 100 (Routine) |
| 2026-08-11 | Mount Ridley | Record daily precipitation | 13.6 mm (0.5 in) | 5.4 mm (0.21 in) | 27 | 20 of 100 (Routine) |
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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.