Extreme rain in Japan, 13 to 15 October 2026
Extreme rain in Japan, 13 to 15 October 2026: 9 records at 6 stations, peak on 14 October 2026. Closed.
Data as of . Last revised (2026-11-12).
Key Facts
- Extreme rain in Japan, 13 to 15 October 2026 set or tied 9 station records at 6 stations.
- It ran from 13 October 2026 to 15 October 2026 (3 days) and its peak day was 14 October 2026.
- Status: closed.
- Kutchan set a daily record precipitation of 90.5 mm (3.6 in) on 14 October 2026 (provisional).
- The busiest day was 14 October 2026 with 5 records.
- The oldest broken record in the ranked list had stood for 64 years.
Footprint
13 to 15 October 2026| Station | Type | Value | Date |
|---|---|---|---|
| Kutchan | Record daily precipitation | 90.5 mm (3.6 in) | 2026-10-14 |
| Rumoi | Record daily precipitation | 73.5 mm (2.9 in) | 2026-10-13 |
| Obihiro | Record daily precipitation | 119.0 mm (4.7 in) | 2026-10-14 |
| Sapporo | Record daily precipitation | 47.0 mm (1.9 in) | 2026-10-14 |
| Kitamiesashi | Record daily precipitation | 47.5 mm (1.9 in) | 2026-10-14 |
| Hiroo | Record daily precipitation | 79.5 mm (3.1 in) | 2026-10-14 |
Records per Day
Peak day 5| Date | Records |
|---|---|
| 2026-10-13 | 3 |
| 2026-10-14 | 5 |
| 2026-10-15 | 1 |
Top Records by Margin
Margin over the record replaced| Kutchan, 10-14 | |
|---|---|
| Obihiro, 10-14 | |
| Sapporo, 10-14 | |
| Rumoi, 10-13 | |
| Sapporo, 10-15 | |
| Hiroo, 10-14 | |
| Kitamiesashi, 10-14 | |
| Obihiro, 10-13 | |
| Kutchan, 10-13 |
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 |
|---|---|
| 58 | 59 |
| 13 | 63 |
| 25 | 46 |
| 23 | 52 |
| 8 | 60 |
| 10 | 49 |
| 3 | 64 |
| 7 | 35 |
| 9 | 12 |
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 Japan, 13 to 15 October 2026 (this event) |
Every Record Set
9 of 9| Date | Station | Record | Value | Margin | Years stood | Significance |
|---|---|---|---|---|---|---|
| 2026-10-13 | Rumoi | Record daily precipitation (provisional) | 73.5 mm (2.9 in) | 13.0 mm (0.5 in) | 63 | 50 of 100 (Notable) |
| 2026-10-13 | Kutchan | Record daily precipitation (provisional) | 35.5 mm (1.4 in) | 3.0 mm (0.12 in) | 64 | 28 of 100 (Routine) |
| 2026-10-13 | Obihiro | Record daily precipitation (provisional) | 56.5 mm (2.2 in) | 6.5 mm (0.26 in) | 35 | 21 of 100 (Routine) |
| 2026-10-14 | Kutchan | Record daily precipitation (provisional) | 90.5 mm (3.6 in) | 57.8 mm (2.3 in) | 59 | 64 of 100 (Major) |
| 2026-10-14 | Obihiro | Record daily precipitation (provisional) | 119.0 mm (4.7 in) | 25.0 mm (1.0 in) | 46 | 49 of 100 (Notable) |
| 2026-10-14 | Sapporo | Record daily precipitation (provisional) | 47.0 mm (1.9 in) | 22.5 mm (0.9 in) | 52 | 41 of 100 (Notable) |
| 2026-10-14 | Kitamiesashi | Record daily precipitation (provisional) | 47.5 mm (1.9 in) | 8.3 mm (0.33 in) | 60 | 32 of 100 (Routine) |
| 2026-10-14 | Hiroo | Record daily precipitation (provisional) | 79.5 mm (3.1 in) | 9.4 mm (0.37 in) | 12 | 12 of 100 (Routine) |
| 2026-10-15 | Sapporo | Record daily precipitation (provisional) | 40.0 mm (1.6 in) | 9.5 mm (0.37 in) | 49 | 29 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 2026-11-12. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.