| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(土) |
02:00 | 07:02 | 12:42 | 19:49 |
| 13cm | 10cm | 16cm | 3cm | |
|
||||
留萌（北海道）2028年05月20日の10分毎の潮の高低差を確認できます。
また1日の潮の高低差が1番大きい（潮の流れが大きい）時間に「最大潮位差」と明記してます。
| 時刻 | 潮位 | 高低差 | 各ポイント |
|---|---|---|---|
| 5/20 00:00 | 10.9 | ↑0.2 | |
| 5/20 00:10 | 11.1 | ↑0.2 | |
| 5/20 00:20 | 11.3 | ↑0.2 | |
| 5/20 00:30 | 11.5 | ↑0.2 | |
| 5/20 00:40 | 11.6 | ↑0.1 | |
| 5/20 00:50 | 11.8 | ↑0.2 | |
| 5/20 01:00 | 11.9 | ↑0.1 | |
| 5/20 01:10 | 11.9 | 0 | |
| 5/20 01:20 | 12.0 | ↑0.1 | |
| 5/20 01:30 | 12.0 | 0 | |
| 5/20 01:40 | 12.1 | ↑0.1 | |
| 5/20 01:50 | 12.1 | 0 | 満潮 |
| 5/20 02:00 | 12.1 | 0 | 満潮 |
| 5/20 02:10 | 12.1 | 0 | |
| 5/20 02:20 | 12.1 | 0 | |
| 5/20 02:30 | 12.0 | ↓-0.1 | |
| 5/20 02:40 | 12.0 | 0 | |
| 5/20 02:50 | 12.0 | 0 | |
| 5/20 03:00 | 11.9 | ↓-0.1 | |
| 5/20 03:10 | 11.9 | 0 | |
| 5/20 03:20 | 11.8 | ↓-0.1 | |
| 5/20 03:30 | 11.7 | ↓-0.1 | |
| 5/20 03:40 | 11.6 | ↓-0.1 | |
| 5/20 03:50 | 11.5 | ↓-0.1 | |
| 5/20 04:00 | 11.4 | ↓-0.1 | |
| 5/20 04:10 | 11.3 | ↓-0.1 | |
| 5/20 04:20 | 11.2 | ↓-0.1 | |
| 5/20 04:30 | 11.0 | ↓-0.2 | |
| 5/20 04:40 | 10.9 | ↓-0.1 | |
| 5/20 04:50 | 10.7 | ↓-0.2 | |
| 5/20 05:00 | 10.6 | ↓-0.1 | |
| 5/20 05:10 | 10.4 | ↓-0.2 | |
| 5/20 05:20 | 10.3 | ↓-0.1 | |
| 5/20 05:30 | 10.1 | ↓-0.2 | |
| 5/20 05:40 | 10.0 | ↓-0.1 | |
| 5/20 05:50 | 9.8 | ↓-0.2 | |
| 5/20 06:00 | 9.7 | ↓-0.1 | |
| 5/20 06:10 | 9.6 | ↓-0.1 | |
| 5/20 06:20 | 9.5 | ↓-0.1 | |
| 5/20 06:30 | 9.4 | ↓-0.1 | |
| 5/20 06:40 | 9.4 | 0 | |
| 5/20 06:50 | 9.3 | ↓-0.1 | |
| 5/20 07:00 | 9.3 | 0 | 干潮 |
| 5/20 07:10 | 9.3 | 0 | |
| 5/20 07:20 | 9.3 | 0 | |
| 5/20 07:30 | 9.4 | ↑0.1 | |
| 5/20 07:40 | 9.5 | ↑0.1 | |
| 5/20 07:50 | 9.6 | ↑0.1 | |
| 5/20 08:00 | 9.7 | ↑0.1 | |
| 5/20 08:10 | 9.8 | ↑0.1 | |
| 5/20 08:20 | 10.0 | ↑0.2 | |
| 5/20 08:30 | 10.1 | ↑0.1 | |
| 5/20 08:40 | 10.3 | ↑0.2 | |
| 5/20 08:50 | 10.5 | ↑0.2 | |
| 5/20 09:00 | 10.7 | ↑0.2 | |
| 5/20 09:10 | 11.0 | ↑0.3 | |
| 5/20 09:20 | 11.2 | ↑0.2 | |
| 5/20 09:30 | 11.5 | ↑0.3 | |
| 5/20 09:40 | 11.7 | ↑0.2 | |
| 5/20 09:50 | 12.0 | ↑0.3 | |
| 5/20 10:00 | 12.3 | ↑0.3 | |
| 5/20 10:10 | 12.6 | ↑0.3 | |
| 5/20 10:20 | 12.9 | ↑0.3 | |
| 5/20 10:30 | 13.2 | ↑0.3 | |
| 5/20 10:40 | 13.5 | ↑0.3 | |
| 5/20 10:50 | 13.8 | ↑0.3 | |
| 5/20 11:00 | 14.1 | ↑0.3 | |
| 5/20 11:10 | 14.4 | ↑0.3 | |
| 5/20 11:20 | 14.7 | ↑0.3 | |
| 5/20 11:30 | 14.9 | ↑0.2 | |
| 5/20 11:40 | 15.1 | ↑0.2 | |
| 5/20 11:50 | 15.3 | ↑0.2 | |
| 5/20 12:00 | 15.5 | ↑0.2 | |
| 5/20 12:10 | 15.7 | ↑0.2 | |
| 5/20 12:20 | 15.8 | ↑0.1 | |
| 5/20 12:30 | 15.8 | 0 | |
| 5/20 12:40 | 15.8 | 0 | 満潮 |
| 5/20 12:50 | 15.8 | 0 | |
| 5/20 13:00 | 15.8 | 0 | |
| 5/20 13:10 | 15.7 | ↓-0.1 | |
| 5/20 13:20 | 15.5 | ↓-0.2 | |
| 5/20 13:30 | 15.4 | ↓-0.1 | |
| 5/20 13:40 | 15.1 | ↓-0.3 | |
| 5/20 13:50 | 14.9 | ↓-0.2 | |
| 5/20 14:00 | 14.6 | ↓-0.3 | |
| 5/20 14:10 | 14.3 | ↓-0.3 | |
| 5/20 14:20 | 14.0 | ↓-0.3 | |
| 5/20 14:30 | 13.6 | ↓-0.4 | |
| 5/20 14:40 | 13.3 | ↓-0.3 | |
| 5/20 14:50 | 12.9 | ↓-0.4 | |
| 5/20 15:00 | 12.5 | ↓-0.4 | |
| 5/20 15:10 | 12.0 | ↓-0.5 | 最大潮位差 |
| 5/20 15:20 | 11.6 | ↓-0.4 | |
| 5/20 15:30 | 11.2 | ↓-0.4 | |
| 5/20 15:40 | 10.7 | ↓-0.5 | 最大潮位差 |
| 5/20 15:50 | 10.3 | ↓-0.4 | |
| 5/20 16:00 | 9.8 | ↓-0.5 | 最大潮位差 |
| 5/20 16:10 | 9.3 | ↓-0.5 | 最大潮位差 |
| 5/20 16:20 | 8.9 | ↓-0.4 | |
| 5/20 16:30 | 8.4 | ↓-0.5 | 最大潮位差 |
| 5/20 16:40 | 7.9 | ↓-0.5 | 最大潮位差 |
| 5/20 16:50 | 7.4 | ↓-0.5 | 最大潮位差 |
| 5/20 17:00 | 6.9 | ↓-0.5 | 最大潮位差 |
| 5/20 17:10 | 6.5 | ↓-0.4 | |
| 5/20 17:20 | 6.0 | ↓-0.5 | 最大潮位差 |
| 5/20 17:30 | 5.6 | ↓-0.4 | |
| 5/20 17:40 | 5.1 | ↓-0.5 | 最大潮位差 |
| 5/20 17:50 | 4.7 | ↓-0.4 | |
| 5/20 18:00 | 4.4 | ↓-0.3 | |
| 5/20 18:10 | 4.0 | ↓-0.4 | |
| 5/20 18:20 | 3.7 | ↓-0.3 | |
| 5/20 18:30 | 3.4 | ↓-0.3 | |
| 5/20 18:40 | 3.1 | ↓-0.3 | |
| 5/20 18:50 | 2.9 | ↓-0.2 | |
| 5/20 19:00 | 2.7 | ↓-0.2 | |
| 5/20 19:10 | 2.5 | ↓-0.2 | |
| 5/20 19:20 | 2.4 | ↓-0.1 | |
| 5/20 19:30 | 2.3 | ↓-0.1 | |
| 5/20 19:40 | 2.3 | 0 | 干潮 |
| 5/20 19:50 | 2.3 | 0 | |
| 5/20 20:00 | 2.3 | 0 | |
| 5/20 20:10 | 2.3 | 0 | |
| 5/20 20:20 | 2.4 | ↑0.1 | |
| 5/20 20:30 | 2.5 | ↑0.1 | |
| 5/20 20:40 | 2.7 | ↑0.2 | |
| 5/20 20:50 | 2.9 | ↑0.2 | |
| 5/20 21:00 | 3.1 | ↑0.2 | |
| 5/20 21:10 | 3.3 | ↑0.2 | |
| 5/20 21:20 | 3.5 | ↑0.2 | |
| 5/20 21:30 | 3.8 | ↑0.3 | |
| 5/20 21:40 | 4.1 | ↑0.3 | |
| 5/20 21:50 | 4.4 | ↑0.3 | |
| 5/20 22:00 | 4.8 | ↑0.4 | |
| 5/20 22:10 | 5.1 | ↑0.3 | |
| 5/20 22:20 | 5.5 | ↑0.4 | |
| 5/20 22:30 | 5.9 | ↑0.4 | |
| 5/20 22:40 | 6.4 | ↑0.5 | 最大潮位差 |
| 5/20 22:50 | 6.8 | ↑0.4 | |
| 5/20 23:00 | 7.3 | ↑0.5 | 最大潮位差 |
| 5/20 23:10 | 7.7 | ↑0.4 | |
| 5/20 23:20 | 8.2 | ↑0.5 | 最大潮位差 |
| 5/20 23:30 | 8.7 | ↑0.5 | 最大潮位差 |
| 5/20 23:40 | 9.1 | ↑0.4 | |
| 5/20 23:50 | 9.6 | ↑0.5 | 最大潮位差 |