| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(月) |
02:30 | 09:03 | 14:57 | 21:21 |
| 11cm | -1cm | 12cm | 0cm | |
|
||||
留萌（北海道）2020年04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 |
|---|---|---|---|
| 4/20 00:00 | 7.0 | ↑0.4 | |
| 4/20 00:10 | 7.3 | ↑0.3 | |
| 4/20 00:20 | 7.7 | ↑0.4 | |
| 4/20 00:30 | 8.0 | ↑0.3 | |
| 4/20 00:40 | 8.3 | ↑0.3 | |
| 4/20 00:50 | 8.6 | ↑0.3 | |
| 4/20 01:00 | 8.9 | ↑0.3 | |
| 4/20 01:10 | 9.1 | ↑0.2 | |
| 4/20 01:20 | 9.4 | ↑0.3 | |
| 4/20 01:30 | 9.5 | ↑0.1 | |
| 4/20 01:40 | 9.7 | ↑0.2 | |
| 4/20 01:50 | 9.8 | ↑0.1 | |
| 4/20 02:00 | 9.9 | ↑0.1 | |
| 4/20 02:10 | 10.0 | ↑0.1 | |
| 4/20 02:20 | 10.0 | 0 | 満潮 |
| 4/20 02:30 | 10.0 | 0 | 満潮 |
| 4/20 02:40 | 10.0 | 0 | |
| 4/20 02:50 | 10.0 | 0 | |
| 4/20 03:00 | 9.9 | ↓-0.1 | |
| 4/20 03:10 | 9.8 | ↓-0.1 | |
| 4/20 03:20 | 9.7 | ↓-0.1 | |
| 4/20 03:30 | 9.6 | ↓-0.1 | |
| 4/20 03:40 | 9.4 | ↓-0.2 | |
| 4/20 03:50 | 9.2 | ↓-0.2 | |
| 4/20 04:00 | 9.0 | ↓-0.2 | |
| 4/20 04:10 | 8.7 | ↓-0.3 | |
| 4/20 04:20 | 8.4 | ↓-0.3 | |
| 4/20 04:30 | 8.1 | ↓-0.3 | |
| 4/20 04:40 | 7.8 | ↓-0.3 | |
| 4/20 04:50 | 7.4 | ↓-0.4 | |
| 4/20 05:00 | 7.1 | ↓-0.3 | |
| 4/20 05:10 | 6.7 | ↓-0.4 | |
| 4/20 05:20 | 6.2 | ↓-0.5 | |
| 4/20 05:30 | 5.8 | ↓-0.4 | |
| 4/20 05:40 | 5.3 | ↓-0.5 | |
| 4/20 05:50 | 4.8 | ↓-0.5 | |
| 4/20 06:00 | 4.4 | ↓-0.4 | |
| 4/20 06:10 | 3.9 | ↓-0.5 | |
| 4/20 06:20 | 3.4 | ↓-0.5 | |
| 4/20 06:30 | 2.9 | ↓-0.5 | |
| 4/20 06:40 | 2.4 | ↓-0.5 | |
| 4/20 06:50 | 2.0 | ↓-0.4 | |
| 4/20 07:00 | 1.5 | ↓-0.5 | |
| 4/20 07:10 | 1.1 | ↓-0.4 | |
| 4/20 07:20 | 0.8 | ↓-0.3 | |
| 4/20 07:30 | 0.4 | ↓-0.4 | |
| 4/20 07:40 | 0.1 | ↓-0.3 | |
| 4/20 07:50 | -0.2 | ↓-0.3 | |
| 4/20 08:00 | -0.5 | ↓-0.3 | |
| 4/20 08:10 | -0.7 | ↓-0.2 | |
| 4/20 08:20 | -0.9 | ↓-0.2 | |
| 4/20 08:30 | -1.0 | ↓-0.1 | |
| 4/20 08:40 | -1.1 | ↓-0.1 | |
| 4/20 08:50 | -1.2 | ↓-0.1 | |
| 4/20 09:00 | -1.2 | 0 | 干潮 |
| 4/20 09:10 | -1.2 | 0 | |
| 4/20 09:20 | -1.1 | ↑0.1 | |
| 4/20 09:30 | -1.0 | ↑0.1 | |
| 4/20 09:40 | -0.9 | ↑0.1 | |
| 4/20 09:50 | -0.7 | ↑0.2 | |
| 4/20 10:00 | -0.5 | ↑0.2 | |
| 4/20 10:10 | -0.3 | ↑0.2 | |
| 4/20 10:20 | 0.0 | ↑0.3 | |
| 4/20 10:30 | 0.3 | 0 | |
| 4/20 10:40 | 0.7 | ↑0.4 | |
| 4/20 10:50 | 1.1 | ↑0.4 | |
| 4/20 11:00 | 1.6 | ↑0.5 | |
| 4/20 11:10 | 2.0 | ↑0.4 | |
| 4/20 11:20 | 2.6 | ↑0.6 | 最大潮位差 |
| 4/20 11:30 | 3.1 | ↑0.5 | |
| 4/20 11:40 | 3.6 | ↑0.5 | |
| 4/20 11:50 | 4.2 | ↑0.6 | 最大潮位差 |
| 4/20 12:00 | 4.8 | ↑0.6 | 最大潮位差 |
| 4/20 12:10 | 5.4 | ↑0.6 | 最大潮位差 |
| 4/20 12:20 | 5.9 | ↑0.5 | |
| 4/20 12:30 | 6.5 | ↑0.6 | 最大潮位差 |
| 4/20 12:40 | 7.0 | ↑0.5 | |
| 4/20 12:50 | 7.6 | ↑0.6 | 最大潮位差 |
| 4/20 13:00 | 8.1 | ↑0.5 | |
| 4/20 13:10 | 8.6 | ↑0.5 | |
| 4/20 13:20 | 9.0 | ↑0.4 | |
| 4/20 13:30 | 9.4 | ↑0.4 | |
| 4/20 13:40 | 9.8 | ↑0.4 | |
| 4/20 13:50 | 10.1 | ↑0.3 | |
| 4/20 14:00 | 10.3 | ↑0.2 | |
| 4/20 14:10 | 10.6 | ↑0.3 | |
| 4/20 14:20 | 10.7 | ↑0.1 | |
| 4/20 14:30 | 10.9 | ↑0.2 | |
| 4/20 14:40 | 11.0 | ↑0.1 | |
| 4/20 14:50 | 11.0 | 0 | 満潮 |
| 4/20 15:00 | 11.0 | 0 | |
| 4/20 15:10 | 11.0 | 0 | |
| 4/20 15:20 | 10.9 | ↓-0.1 | |
| 4/20 15:30 | 10.8 | ↓-0.1 | |
| 4/20 15:40 | 10.7 | ↓-0.1 | |
| 4/20 15:50 | 10.5 | ↓-0.2 | |
| 4/20 16:00 | 10.3 | ↓-0.2 | |
| 4/20 16:10 | 10.0 | ↓-0.3 | |
| 4/20 16:20 | 9.8 | ↓-0.2 | |
| 4/20 16:30 | 9.5 | ↓-0.3 | |
| 4/20 16:40 | 9.1 | ↓-0.4 | |
| 4/20 16:50 | 8.8 | ↓-0.3 | |
| 4/20 17:00 | 8.4 | ↓-0.4 | |
| 4/20 17:10 | 8.0 | ↓-0.4 | |
| 4/20 17:20 | 7.6 | ↓-0.4 | |
| 4/20 17:30 | 7.1 | ↓-0.5 | |
| 4/20 17:40 | 6.7 | ↓-0.4 | |
| 4/20 17:50 | 6.2 | ↓-0.5 | |
| 4/20 18:00 | 5.7 | ↓-0.5 | |
| 4/20 18:10 | 5.2 | ↓-0.5 | |
| 4/20 18:20 | 4.8 | ↓-0.4 | |
| 4/20 18:30 | 4.3 | ↓-0.5 | |
| 4/20 18:40 | 3.8 | ↓-0.5 | |
| 4/20 18:50 | 3.3 | ↓-0.5 | |
| 4/20 19:00 | 2.9 | ↓-0.4 | |
| 4/20 19:10 | 2.5 | ↓-0.4 | |
| 4/20 19:20 | 2.0 | ↓-0.5 | |
| 4/20 19:30 | 1.7 | ↓-0.3 | |
| 4/20 19:40 | 1.3 | ↓-0.4 | |
| 4/20 19:50 | 1.0 | ↓-0.3 | |
| 4/20 20:00 | 0.7 | ↓-0.3 | |
| 4/20 20:10 | 0.5 | ↓-0.2 | |
| 4/20 20:20 | 0.3 | ↓-0.2 | |
| 4/20 20:30 | 0.1 | ↓-0.2 | |
| 4/20 20:40 | -0.1 | ↓-0.2 | |
| 4/20 20:50 | -0.2 | ↓-0.1 | |
| 4/20 21:00 | -0.3 | ↓-0.1 | |
| 4/20 21:10 | -0.3 | 0 | |
| 4/20 21:20 | -0.3 | 0 | 干潮 |
| 4/20 21:30 | -0.3 | 0 | |
| 4/20 21:40 | -0.3 | 0 | |
| 4/20 21:50 | -0.2 | ↑0.1 | |
| 4/20 22:00 | -0.1 | ↑0.1 | |
| 4/20 22:10 | 0.1 | ↑0.2 | |
| 4/20 22:20 | 0.2 | ↑0.1 | |
| 4/20 22:30 | 0.4 | ↑0.2 | |
| 4/20 22:40 | 0.7 | ↑0.3 | |
| 4/20 22:50 | 1.0 | ↑0.3 | |
| 4/20 23:00 | 1.3 | ↑0.3 | |
| 4/20 23:10 | 1.6 | ↑0.3 | |
| 4/20 23:20 | 2.0 | ↑0.4 | |
| 4/20 23:30 | 2.4 | ↑0.4 | |
| 4/20 23:40 | 2.8 | ↑0.4 | |
| 4/20 23:50 | 3.2 | ↑0.4 |