| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(水) |
01:31 | 09:14 | 15:55 | 19:14 |
| 105cm | 7cm | 59cm | 52cm | |
|
||||
コイセボイ（北海道）2031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 | 97.3 | ↑1.6 | |
| 5/21 00:10 | 98.8 | ↑1.5 | |
| 5/21 00:20 | 100.1 | ↑1.3 | |
| 5/21 00:30 | 101.3 | ↑1.2 | |
| 5/21 00:40 | 102.3 | ↑1.0 | |
| 5/21 00:50 | 103.2 | ↑0.9 | |
| 5/21 01:00 | 103.9 | ↑0.7 | |
| 5/21 01:10 | 104.4 | ↑0.5 | |
| 5/21 01:20 | 104.6 | ↑0.2 | |
| 5/21 01:30 | 104.7 | ↑0.1 | 満潮 |
| 5/21 01:40 | 104.6 | ↓-0.1 | |
| 5/21 01:50 | 104.3 | ↓-0.3 | |
| 5/21 02:00 | 103.8 | ↓-0.5 | |
| 5/21 02:10 | 103.1 | ↓-0.7 | |
| 5/21 02:20 | 102.1 | ↓-1.0 | |
| 5/21 02:30 | 100.9 | ↓-1.2 | |
| 5/21 02:40 | 99.6 | ↓-1.3 | |
| 5/21 02:50 | 98.0 | ↓-1.6 | |
| 5/21 03:00 | 96.2 | ↓-1.8 | |
| 5/21 03:10 | 94.3 | ↓-1.9 | |
| 5/21 03:20 | 92.1 | ↓-2.2 | |
| 5/21 03:30 | 89.8 | ↓-2.3 | |
| 5/21 03:40 | 87.3 | ↓-2.5 | |
| 5/21 03:50 | 84.7 | ↓-2.6 | |
| 5/21 04:00 | 81.9 | ↓-2.8 | |
| 5/21 04:10 | 79.0 | ↓-2.9 | |
| 5/21 04:20 | 76.0 | ↓-3.0 | |
| 5/21 04:30 | 72.9 | ↓-3.1 | |
| 5/21 04:40 | 69.7 | ↓-3.2 | |
| 5/21 04:50 | 66.4 | ↓-3.3 | |
| 5/21 05:00 | 63.1 | ↓-3.3 | |
| 5/21 05:10 | 59.8 | ↓-3.3 | |
| 5/21 05:20 | 56.4 | ↓-3.4 | 最大潮位差 |
| 5/21 05:30 | 53.0 | ↓-3.4 | 最大潮位差 |
| 5/21 05:40 | 49.6 | ↓-3.4 | 最大潮位差 |
| 5/21 05:50 | 46.3 | ↓-3.3 | |
| 5/21 06:00 | 43.0 | ↓-3.3 | |
| 5/21 06:10 | 39.8 | ↓-3.2 | |
| 5/21 06:20 | 36.6 | ↓-3.2 | |
| 5/21 06:30 | 33.6 | ↓-3.0 | |
| 5/21 06:40 | 30.7 | ↓-2.9 | |
| 5/21 06:50 | 27.8 | ↓-2.9 | |
| 5/21 07:00 | 25.2 | ↓-2.6 | |
| 5/21 07:10 | 22.6 | ↓-2.6 | |
| 5/21 07:20 | 20.3 | ↓-2.3 | |
| 5/21 07:30 | 18.1 | ↓-2.2 | |
| 5/21 07:40 | 16.0 | ↓-2.1 | |
| 5/21 07:50 | 14.2 | ↓-1.8 | |
| 5/21 08:00 | 12.6 | ↓-1.6 | |
| 5/21 08:10 | 11.2 | ↓-1.4 | |
| 5/21 08:20 | 9.9 | ↓-1.3 | |
| 5/21 08:30 | 8.9 | ↓-1.0 | |
| 5/21 08:40 | 8.1 | ↓-0.8 | |
| 5/21 08:50 | 7.5 | ↓-0.6 | |
| 5/21 09:00 | 7.1 | ↓-0.4 | |
| 5/21 09:10 | 7.0 | ↓-0.1 | 干潮 |
| 5/21 09:20 | 7.0 | 0 | |
| 5/21 09:30 | 7.2 | ↑0.2 | |
| 5/21 09:40 | 7.6 | ↑0.4 | |
| 5/21 09:50 | 8.3 | ↑0.7 | |
| 5/21 10:00 | 9.1 | ↑0.8 | |
| 5/21 10:10 | 10.0 | ↑0.9 | |
| 5/21 10:20 | 11.2 | ↑1.2 | |
| 5/21 10:30 | 12.4 | ↑1.2 | |
| 5/21 10:40 | 13.9 | ↑1.5 | |
| 5/21 10:50 | 15.4 | ↑1.5 | |
| 5/21 11:00 | 17.1 | ↑1.7 | |
| 5/21 11:10 | 18.8 | ↑1.7 | |
| 5/21 11:20 | 20.7 | ↑1.9 | |
| 5/21 11:30 | 22.6 | ↑1.9 | |
| 5/21 11:40 | 24.6 | ↑2.0 | |
| 5/21 11:50 | 26.6 | ↑2.0 | |
| 5/21 12:00 | 28.7 | ↑2.1 | |
| 5/21 12:10 | 30.8 | ↑2.1 | |
| 5/21 12:20 | 32.9 | ↑2.1 | |
| 5/21 12:30 | 34.9 | ↑2.0 | |
| 5/21 12:40 | 37.0 | ↑2.1 | |
| 5/21 12:50 | 39.0 | ↑2.0 | |
| 5/21 13:00 | 40.9 | ↑1.9 | |
| 5/21 13:10 | 42.8 | ↑1.9 | |
| 5/21 13:20 | 44.6 | ↑1.8 | |
| 5/21 13:30 | 46.4 | ↑1.8 | |
| 5/21 13:40 | 48.0 | ↑1.6 | |
| 5/21 13:50 | 49.5 | ↑1.5 | |
| 5/21 14:00 | 51.0 | ↑1.5 | |
| 5/21 14:10 | 52.3 | ↑1.3 | |
| 5/21 14:20 | 53.5 | ↑1.2 | |
| 5/21 14:30 | 54.6 | ↑1.1 | |
| 5/21 14:40 | 55.5 | ↑0.9 | |
| 5/21 14:50 | 56.4 | ↑0.9 | |
| 5/21 15:00 | 57.1 | ↑0.7 | |
| 5/21 15:10 | 57.6 | ↑0.5 | |
| 5/21 15:20 | 58.1 | ↑0.5 | |
| 5/21 15:30 | 58.4 | ↑0.3 | |
| 5/21 15:40 | 58.6 | ↑0.2 | |
| 5/21 15:50 | 58.7 | ↑0.1 | 満潮 |
| 5/21 16:00 | 58.7 | 0 | |
| 5/21 16:10 | 58.6 | ↓-0.1 | |
| 5/21 16:20 | 58.4 | ↓-0.2 | |
| 5/21 16:30 | 58.1 | ↓-0.3 | |
| 5/21 16:40 | 57.7 | ↓-0.4 | |
| 5/21 16:50 | 57.3 | ↓-0.4 | |
| 5/21 17:00 | 56.9 | ↓-0.4 | |
| 5/21 17:10 | 56.3 | ↓-0.6 | |
| 5/21 17:20 | 55.8 | ↓-0.5 | |
| 5/21 17:30 | 55.3 | ↓-0.5 | |
| 5/21 17:40 | 54.7 | ↓-0.6 | |
| 5/21 17:50 | 54.1 | ↓-0.6 | |
| 5/21 18:00 | 53.6 | ↓-0.5 | |
| 5/21 18:10 | 53.1 | ↓-0.5 | |
| 5/21 18:20 | 52.6 | ↓-0.5 | |
| 5/21 18:30 | 52.2 | ↓-0.4 | |
| 5/21 18:40 | 51.9 | ↓-0.3 | |
| 5/21 18:50 | 51.6 | ↓-0.3 | |
| 5/21 19:00 | 51.5 | ↓-0.1 | |
| 5/21 19:10 | 51.4 | ↓-0.1 | 干潮 |
| 5/21 19:20 | 51.4 | 0 | |
| 5/21 19:30 | 51.6 | ↑0.2 | |
| 5/21 19:40 | 51.8 | ↑0.2 | |
| 5/21 19:50 | 52.2 | ↑0.4 | |
| 5/21 20:00 | 52.7 | ↑0.5 | |
| 5/21 20:10 | 53.3 | ↑0.6 | |
| 5/21 20:20 | 54.1 | ↑0.8 | |
| 5/21 20:30 | 55.0 | ↑0.9 | |
| 5/21 20:40 | 56.1 | ↑1.1 | |
| 5/21 20:50 | 57.2 | ↑1.1 | |
| 5/21 21:00 | 58.6 | ↑1.4 | |
| 5/21 21:10 | 60.0 | ↑1.4 | |
| 5/21 21:20 | 61.6 | ↑1.6 | |
| 5/21 21:30 | 63.2 | ↑1.6 | |
| 5/21 21:40 | 65.0 | ↑1.8 | |
| 5/21 21:50 | 66.9 | ↑1.9 | |
| 5/21 22:00 | 68.9 | ↑2.0 | |
| 5/21 22:10 | 71.0 | ↑2.1 | |
| 5/21 22:20 | 73.1 | ↑2.1 | |
| 5/21 22:30 | 75.3 | ↑2.2 | |
| 5/21 22:40 | 77.6 | ↑2.3 | |
| 5/21 22:50 | 79.9 | ↑2.3 | |
| 5/21 23:00 | 82.2 | ↑2.3 | |
| 5/21 23:10 | 84.5 | ↑2.3 | |
| 5/21 23:20 | 86.8 | ↑2.3 | |
| 5/21 23:30 | 89.1 | ↑2.3 | |
| 5/21 23:40 | 91.4 | ↑2.3 | |
| 5/21 23:50 | 93.5 | ↑2.1 |