Extreme rain in Australia, 22 to 24 September 2026
Extreme rain in Australia, 22 to 24 September 2026: 14 records at 14 stations, peak on 23 September 2026. Closed.
Data as of . Last revised (2026-10-17).
Key Facts
- Extreme rain in Australia, 22 to 24 September 2026 set or tied 14 station records at 14 stations.
- It ran from 22 September 2026 to 24 September 2026 (3 days) and its peak day was 23 September 2026.
- Status: closed.
- Randwick Bowling Club set a daily record precipitation of 47.0 mm (1.9 in) on 23 September 2026 (provisional).
- The busiest day was 23 September 2026 with 12 records.
- The oldest broken record in the ranked list had stood for 93 years.
Footprint
22 to 24 September 2026| Station | Type | Value | Date |
|---|---|---|---|
| Randwick Bowling Club | Record daily precipitation | 47.0 mm (1.9 in) | 2026-09-23 |
| Rose Bay (Royal Sydney Golf Cl | Record daily precipitation | 46.0 mm (1.8 in) | 2026-09-23 |
| Greenwell Point Bowling Club | Record daily precipitation | 25.6 mm (1.0 in) | 2026-09-23 |
| Cronulla South Bowling Club | Record daily precipitation | 23.0 mm (0.9 in) | 2026-09-23 |
| Audley (Royal National Park) | Record daily precipitation | 19.0 mm (0.7 in) | 2026-09-23 |
| Culburra Treatment Works | Record daily precipitation | 22.0 mm (0.9 in) | 2026-09-23 |
| Peakhurst Golf Club | Record daily precipitation | 16.0 mm (0.6 in) | 2026-09-23 |
| Nowra Ran Air Station AWS | Record daily precipitation | 11.0 mm (0.4 in) | 2026-09-23 |
| Ulladulla AWS | Record daily precipitation | 20.2 mm (0.8 in) | 2026-09-24 |
| Chatswood Bowling Club | Record daily precipitation | 13.0 mm (0.5 in) | 2026-09-23 |
| Bilpin Post Office | Record daily precipitation | 8.0 mm (0.31 in) | 2026-09-22 |
| Wattamolla (Griffiths) | Record daily precipitation | 12.0 mm (0.5 in) | 2026-09-23 |
| Canterbury Racecourse AWS | Record daily precipitation | 13.4 mm (0.5 in) | 2026-09-23 |
| Barrengarry (the Old School Ho | Record daily precipitation | 7.0 mm (0.28 in) | 2026-09-23 |
Records per Day
Peak day 12| Date | Records |
|---|---|
| 2026-09-22 | 1 |
| 2026-09-23 | 12 |
| 2026-09-24 | 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 |
|---|---|
| 27 | 44 |
| 3 | 93 |
| 13 | 27 |
| 1 | 44 |
| 5 | 44 |
| 5 | 27 |
| 8 | 16 |
| 1 | 28 |
| 5 | 28 |
| 7 | 0 |
| 1 | 28 |
| 7 | 16 |
| 2 | 16 |
| 1 | 0 |
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, 22 to 24 September 2026 (this event) |
Every Record Set
14 of 14| Date | Station | Record | Value | Margin | Years stood | Significance |
|---|---|---|---|---|---|---|
| 2026-09-22 | Bilpin Post Office | Record daily precipitation (provisional) | 8.0 mm (0.31 in) | 1.2 mm (0.05 in) | 28 | 12 of 100 (Routine) |
| 2026-09-23 | Randwick Bowling Club | Record daily precipitation (provisional) | 47.0 mm (1.9 in) | 26.5 mm (1.0 in) | 44 | 44 of 100 (Notable) |
| 2026-09-23 | Rose Bay (Royal Sydney Golf Cl | Record daily precipitation (provisional) | 46.0 mm (1.8 in) | 3.3 mm (0.13 in) | 93 | 39 of 100 (Notable) |
| 2026-09-23 | Greenwell Point Bowling Club | Record daily precipitation (provisional) | 25.6 mm (1.0 in) | 12.6 mm (0.5 in) | 27 | 22 of 100 (Routine) |
| 2026-09-23 | Cronulla South Bowling Club | Record daily precipitation (provisional) | 23.0 mm (0.9 in) | 0.6 mm (0.02 in) | 44 | 20 of 100 (Routine) |
| 2026-09-23 | Audley (Royal National Park) | Record daily precipitation (provisional) | 19.0 mm (0.7 in) | 5.0 mm (0.20 in) | 44 | 20 of 100 (Routine) |
| 2026-09-23 | Culburra Treatment Works | Record daily precipitation (provisional) | 22.0 mm (0.9 in) | 5.0 mm (0.20 in) | 27 | 17 of 100 (Routine) |
| 2026-09-23 | Peakhurst Golf Club | Record daily precipitation (provisional) | 16.0 mm (0.6 in) | 8.0 mm (0.31 in) | 16 | 16 of 100 (Routine) |
| 2026-09-23 | Nowra Ran Air Station AWS | Record daily precipitation (provisional) | 11.0 mm (0.4 in) | 1.1 mm (0.04 in) | 28 | 15 of 100 (Routine) |
| 2026-09-23 | Chatswood Bowling Club | Record daily precipitation (provisional) | 13.0 mm (0.5 in) | 7.0 mm (0.28 in) | 0 | 13 of 100 (Routine) |
| 2026-09-23 | Wattamolla (Griffiths) | Record daily precipitation (provisional) | 12.0 mm (0.5 in) | 6.8 mm (0.27 in) | 16 | 10 of 100 (Routine) |
| 2026-09-23 | Canterbury Racecourse AWS | Record daily precipitation (provisional) | 13.4 mm (0.5 in) | 1.6 mm (0.06 in) | 16 | 9 of 100 (Routine) |
| 2026-09-23 | Barrengarry (the Old School Ho | Record daily precipitation (provisional) | 7.0 mm (0.28 in) | 1.0 mm (0.04 in) | 0 | 4 of 100 (Routine) |
| 2026-09-24 | Ulladulla AWS | Record daily precipitation (provisional) | 20.2 mm (0.8 in) | 5.2 mm (0.20 in) | 28 | 14 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.