| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(日) |
03:40 | 11:24 | 17:53 | 21:16 |
| 112cm | 7cm | 57cm | 49cm | |
|
||||
コイセボイ（北海道）2034年05月21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 |
|---|---|---|---|
| 5/21 00:00 | 73.4 | ↑2.4 | |
| 5/21 00:10 | 75.8 | ↑2.4 | |
| 5/21 00:20 | 78.2 | ↑2.4 | |
| 5/21 00:30 | 80.6 | ↑2.4 | |
| 5/21 00:40 | 83.1 | ↑2.5 | |
| 5/21 00:50 | 85.5 | ↑2.4 | |
| 5/21 01:00 | 88.0 | ↑2.5 | |
| 5/21 01:10 | 90.4 | ↑2.4 | |
| 5/21 01:20 | 92.7 | ↑2.3 | |
| 5/21 01:30 | 94.9 | ↑2.2 | |
| 5/21 01:40 | 97.1 | ↑2.2 | |
| 5/21 01:50 | 99.2 | ↑2.1 | |
| 5/21 02:00 | 101.1 | ↑1.9 | |
| 5/21 02:10 | 102.9 | ↑1.8 | |
| 5/21 02:20 | 104.6 | ↑1.7 | |
| 5/21 02:30 | 106.1 | ↑1.5 | |
| 5/21 02:40 | 107.4 | ↑1.3 | |
| 5/21 02:50 | 108.6 | ↑1.2 | |
| 5/21 03:00 | 109.5 | ↑0.9 | |
| 5/21 03:10 | 110.3 | ↑0.8 | |
| 5/21 03:20 | 110.8 | ↑0.5 | |
| 5/21 03:30 | 111.2 | ↑0.4 | 満潮 |
| 5/21 03:40 | 111.2 | 0 | 満潮 |
| 5/21 03:50 | 111.1 | ↓-0.1 | |
| 5/21 04:00 | 110.7 | ↓-0.4 | |
| 5/21 04:10 | 110.2 | ↓-0.5 | |
| 5/21 04:20 | 109.3 | ↓-0.9 | |
| 5/21 04:30 | 108.3 | ↓-1.0 | |
| 5/21 04:40 | 107.0 | ↓-1.3 | |
| 5/21 04:50 | 105.4 | ↓-1.6 | |
| 5/21 05:00 | 103.7 | ↓-1.7 | |
| 5/21 05:10 | 101.8 | ↓-1.9 | |
| 5/21 05:20 | 99.6 | ↓-2.2 | |
| 5/21 05:30 | 97.2 | ↓-2.4 | |
| 5/21 05:40 | 94.7 | ↓-2.5 | |
| 5/21 05:50 | 92.0 | ↓-2.7 | |
| 5/21 06:00 | 89.1 | ↓-2.9 | |
| 5/21 06:10 | 86.1 | ↓-3.0 | |
| 5/21 06:20 | 82.9 | ↓-3.2 | |
| 5/21 06:30 | 79.7 | ↓-3.2 | |
| 5/21 06:40 | 76.3 | ↓-3.4 | |
| 5/21 06:50 | 72.8 | ↓-3.5 | |
| 5/21 07:00 | 69.3 | ↓-3.5 | |
| 5/21 07:10 | 65.7 | ↓-3.6 | 最大潮位差 |
| 5/21 07:20 | 62.1 | ↓-3.6 | 最大潮位差 |
| 5/21 07:30 | 58.5 | ↓-3.6 | 最大潮位差 |
| 5/21 07:40 | 54.9 | ↓-3.6 | 最大潮位差 |
| 5/21 07:50 | 51.3 | ↓-3.6 | 最大潮位差 |
| 5/21 08:00 | 47.7 | ↓-3.6 | 最大潮位差 |
| 5/21 08:10 | 44.2 | ↓-3.5 | |
| 5/21 08:20 | 40.8 | ↓-3.4 | |
| 5/21 08:30 | 37.5 | ↓-3.3 | |
| 5/21 08:40 | 34.3 | ↓-3.2 | |
| 5/21 08:50 | 31.2 | ↓-3.1 | |
| 5/21 09:00 | 28.2 | ↓-3.0 | |
| 5/21 09:10 | 25.4 | ↓-2.8 | |
| 5/21 09:20 | 22.7 | ↓-2.7 | |
| 5/21 09:30 | 20.3 | ↓-2.4 | |
| 5/21 09:40 | 18.0 | ↓-2.3 | |
| 5/21 09:50 | 15.9 | ↓-2.1 | |
| 5/21 10:00 | 14.0 | ↓-1.9 | |
| 5/21 10:10 | 12.3 | ↓-1.7 | |
| 5/21 10:20 | 10.8 | ↓-1.5 | |
| 5/21 10:30 | 9.6 | ↓-1.2 | |
| 5/21 10:40 | 8.5 | ↓-1.1 | |
| 5/21 10:50 | 7.7 | ↓-0.8 | |
| 5/21 11:00 | 7.1 | ↓-0.6 | |
| 5/21 11:10 | 6.8 | ↓-0.3 | |
| 5/21 11:20 | 6.6 | ↓-0.2 | 干潮 |
| 5/21 11:30 | 6.6 | 0 | |
| 5/21 11:40 | 6.9 | ↑0.3 | |
| 5/21 11:50 | 7.4 | ↑0.5 | |
| 5/21 12:00 | 8.0 | ↑0.6 | |
| 5/21 12:10 | 8.8 | ↑0.8 | |
| 5/21 12:20 | 9.8 | ↑1.0 | |
| 5/21 12:30 | 11.0 | ↑1.2 | |
| 5/21 12:40 | 12.3 | ↑1.3 | |
| 5/21 12:50 | 13.7 | ↑1.4 | |
| 5/21 13:00 | 15.3 | ↑1.6 | |
| 5/21 13:10 | 17.0 | ↑1.7 | |
| 5/21 13:20 | 18.7 | ↑1.7 | |
| 5/21 13:30 | 20.6 | ↑1.9 | |
| 5/21 13:40 | 22.5 | ↑1.9 | |
| 5/21 13:50 | 24.5 | ↑2.0 | |
| 5/21 14:00 | 26.5 | ↑2.0 | |
| 5/21 14:10 | 28.5 | ↑2.0 | |
| 5/21 14:20 | 30.6 | ↑2.1 | |
| 5/21 14:30 | 32.6 | ↑2.0 | |
| 5/21 14:40 | 34.6 | ↑2.0 | |
| 5/21 14:50 | 36.6 | ↑2.0 | |
| 5/21 15:00 | 38.5 | ↑1.9 | |
| 5/21 15:10 | 40.4 | ↑1.9 | |
| 5/21 15:20 | 42.2 | ↑1.8 | |
| 5/21 15:30 | 43.9 | ↑1.7 | |
| 5/21 15:40 | 45.5 | ↑1.6 | |
| 5/21 15:50 | 47.0 | ↑1.5 | |
| 5/21 16:00 | 48.4 | ↑1.4 | |
| 5/21 16:10 | 49.7 | ↑1.3 | |
| 5/21 16:20 | 50.9 | ↑1.2 | |
| 5/21 16:30 | 52.0 | ↑1.1 | |
| 5/21 16:40 | 52.9 | ↑0.9 | |
| 5/21 16:50 | 53.7 | ↑0.8 | |
| 5/21 17:00 | 54.4 | ↑0.7 | |
| 5/21 17:10 | 55.0 | ↑0.6 | |
| 5/21 17:20 | 55.4 | ↑0.4 | |
| 5/21 17:30 | 55.7 | ↑0.3 | |
| 5/21 17:40 | 55.9 | ↑0.2 | |
| 5/21 17:50 | 56.0 | ↑0.1 | 満潮 |
| 5/21 18:00 | 56.0 | 0 | |
| 5/21 18:10 | 55.8 | ↓-0.2 | |
| 5/21 18:20 | 55.6 | ↓-0.2 | |
| 5/21 18:30 | 55.3 | ↓-0.3 | |
| 5/21 18:40 | 54.9 | ↓-0.4 | |
| 5/21 18:50 | 54.5 | ↓-0.4 | |
| 5/21 19:00 | 54.0 | ↓-0.5 | |
| 5/21 19:10 | 53.5 | ↓-0.5 | |
| 5/21 19:20 | 52.9 | ↓-0.6 | |
| 5/21 19:30 | 52.3 | ↓-0.6 | |
| 5/21 19:40 | 51.7 | ↓-0.6 | |
| 5/21 19:50 | 51.2 | ↓-0.5 | |
| 5/21 20:00 | 50.6 | ↓-0.6 | |
| 5/21 20:10 | 50.1 | ↓-0.5 | |
| 5/21 20:20 | 49.6 | ↓-0.5 | |
| 5/21 20:30 | 49.1 | ↓-0.5 | |
| 5/21 20:40 | 48.8 | ↓-0.3 | |
| 5/21 20:50 | 48.5 | ↓-0.3 | |
| 5/21 21:00 | 48.3 | ↓-0.2 | |
| 5/21 21:10 | 48.2 | ↓-0.1 | 干潮 |
| 5/21 21:20 | 48.2 | 0 | |
| 5/21 21:30 | 48.3 | ↑0.1 | |
| 5/21 21:40 | 48.5 | ↑0.2 | |
| 5/21 21:50 | 48.9 | ↑0.4 | |
| 5/21 22:00 | 49.3 | ↑0.4 | |
| 5/21 22:10 | 49.9 | ↑0.6 | |
| 5/21 22:20 | 50.7 | ↑0.8 | |
| 5/21 22:30 | 51.6 | ↑0.9 | |
| 5/21 22:40 | 52.6 | ↑1.0 | |
| 5/21 22:50 | 53.8 | ↑1.2 | |
| 5/21 23:00 | 55.1 | ↑1.3 | |
| 5/21 23:10 | 56.5 | ↑1.4 | |
| 5/21 23:20 | 58.0 | ↑1.5 | |
| 5/21 23:30 | 59.7 | ↑1.7 | |
| 5/21 23:40 | 61.5 | ↑1.8 | |
| 5/21 23:50 | 63.4 | ↑1.9 |