| 満潮 | 干潮 | 満潮 | 干潮 |
|
4
(火) |
06:20 | 15:28 | - | - |
| 101cm | 21cm | - | - | |
|
||||
コイセボイ（北海道）2021年05月4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 |
|---|---|---|---|
| 5/4 00:00 | 52.9 | ↑0.9 | |
| 5/4 00:10 | 53.9 | ↑1.0 | |
| 5/4 00:20 | 55.0 | ↑1.1 | |
| 5/4 00:30 | 56.1 | ↑1.1 | |
| 5/4 00:40 | 57.3 | ↑1.2 | |
| 5/4 00:50 | 58.6 | ↑1.3 | |
| 5/4 01:00 | 59.9 | ↑1.3 | |
| 5/4 01:10 | 61.3 | ↑1.4 | |
| 5/4 01:20 | 62.7 | ↑1.4 | |
| 5/4 01:30 | 64.2 | ↑1.5 | |
| 5/4 01:40 | 65.7 | ↑1.5 | |
| 5/4 01:50 | 67.3 | ↑1.6 | |
| 5/4 02:00 | 68.9 | ↑1.6 | |
| 5/4 02:10 | 70.5 | ↑1.6 | |
| 5/4 02:20 | 72.2 | ↑1.7 | |
| 5/4 02:30 | 73.9 | ↑1.7 | |
| 5/4 02:40 | 75.6 | ↑1.7 | |
| 5/4 02:50 | 77.2 | ↑1.6 | |
| 5/4 03:00 | 78.9 | ↑1.7 | |
| 5/4 03:10 | 80.6 | ↑1.7 | |
| 5/4 03:20 | 82.3 | ↑1.7 | |
| 5/4 03:30 | 83.9 | ↑1.6 | |
| 5/4 03:40 | 85.5 | ↑1.6 | |
| 5/4 03:50 | 87.0 | ↑1.5 | |
| 5/4 04:00 | 88.5 | ↑1.5 | |
| 5/4 04:10 | 90.0 | ↑1.5 | |
| 5/4 04:20 | 91.3 | ↑1.3 | |
| 5/4 04:30 | 92.6 | ↑1.3 | |
| 5/4 04:40 | 93.8 | ↑1.2 | |
| 5/4 04:50 | 95.0 | ↑1.2 | |
| 5/4 05:00 | 96.0 | ↑1.0 | |
| 5/4 05:10 | 96.9 | ↑0.9 | |
| 5/4 05:20 | 97.7 | ↑0.8 | |
| 5/4 05:30 | 98.4 | ↑0.7 | |
| 5/4 05:40 | 99.0 | ↑0.6 | |
| 5/4 05:50 | 99.4 | ↑0.4 | |
| 5/4 06:00 | 99.8 | ↑0.4 | |
| 5/4 06:10 | 100.0 | ↑0.2 | 満潮 |
| 5/4 06:20 | 100.0 | 0 | 満潮 |
| 5/4 06:30 | 99.9 | ↓-0.1 | |
| 5/4 06:40 | 99.7 | ↓-0.2 | |
| 5/4 06:50 | 99.4 | ↓-0.3 | |
| 5/4 07:00 | 98.9 | ↓-0.5 | |
| 5/4 07:10 | 98.3 | ↓-0.6 | |
| 5/4 07:20 | 97.5 | ↓-0.8 | |
| 5/4 07:30 | 96.6 | ↓-0.9 | |
| 5/4 07:40 | 95.6 | ↓-1.0 | |
| 5/4 07:50 | 94.4 | ↓-1.2 | |
| 5/4 08:00 | 93.1 | ↓-1.3 | |
| 5/4 08:10 | 91.7 | ↓-1.4 | |
| 5/4 08:20 | 90.2 | ↓-1.5 | |
| 5/4 08:30 | 88.5 | ↓-1.7 | |
| 5/4 08:40 | 86.8 | ↓-1.7 | |
| 5/4 08:50 | 85.0 | ↓-1.8 | |
| 5/4 09:00 | 83.0 | ↓-2.0 | |
| 5/4 09:10 | 81.0 | ↓-2.0 | |
| 5/4 09:20 | 78.9 | ↓-2.1 | |
| 5/4 09:30 | 76.8 | ↓-2.1 | |
| 5/4 09:40 | 74.6 | ↓-2.2 | |
| 5/4 09:50 | 72.3 | ↓-2.3 | |
| 5/4 10:00 | 70.0 | ↓-2.3 | |
| 5/4 10:10 | 67.7 | ↓-2.3 | |
| 5/4 10:20 | 65.4 | ↓-2.3 | |
| 5/4 10:30 | 63.0 | ↓-2.4 | 最大潮位差 |
| 5/4 10:40 | 60.6 | ↓-2.4 | 最大潮位差 |
| 5/4 10:50 | 58.3 | ↓-2.3 | |
| 5/4 11:00 | 55.9 | ↓-2.4 | 最大潮位差 |
| 5/4 11:10 | 53.6 | ↓-2.3 | |
| 5/4 11:20 | 51.3 | ↓-2.3 | |
| 5/4 11:30 | 49.0 | ↓-2.3 | |
| 5/4 11:40 | 46.8 | ↓-2.2 | |
| 5/4 11:50 | 44.6 | ↓-2.2 | |
| 5/4 12:00 | 42.5 | ↓-2.1 | |
| 5/4 12:10 | 40.5 | ↓-2.0 | |
| 5/4 12:20 | 38.6 | ↓-1.9 | |
| 5/4 12:30 | 36.7 | ↓-1.9 | |
| 5/4 12:40 | 34.9 | ↓-1.8 | |
| 5/4 12:50 | 33.2 | ↓-1.7 | |
| 5/4 13:00 | 31.6 | ↓-1.6 | |
| 5/4 13:10 | 30.1 | ↓-1.5 | |
| 5/4 13:20 | 28.7 | ↓-1.4 | |
| 5/4 13:30 | 27.4 | ↓-1.3 | |
| 5/4 13:40 | 26.3 | ↓-1.1 | |
| 5/4 13:50 | 25.2 | ↓-1.1 | |
| 5/4 14:00 | 24.2 | ↓-1.0 | |
| 5/4 14:10 | 23.4 | ↓-0.8 | |
| 5/4 14:20 | 22.6 | ↓-0.8 | |
| 5/4 14:30 | 22.0 | ↓-0.6 | |
| 5/4 14:40 | 21.5 | ↓-0.5 | |
| 5/4 14:50 | 21.1 | ↓-0.4 | |
| 5/4 15:00 | 20.8 | ↓-0.3 | |
| 5/4 15:10 | 20.5 | ↓-0.3 | |
| 5/4 15:20 | 20.4 | ↓-0.1 | 干潮 |
| 5/4 15:30 | 20.4 | 0 | |
| 5/4 15:40 | 20.5 | ↑0.1 | |
| 5/4 15:50 | 20.7 | ↑0.2 | |
| 5/4 16:00 | 20.9 | ↑0.2 | |
| 5/4 16:10 | 21.2 | ↑0.3 | |
| 5/4 16:20 | 21.6 | ↑0.4 | |
| 5/4 16:30 | 22.1 | ↑0.5 | |
| 5/4 16:40 | 22.6 | ↑0.5 | |
| 5/4 16:50 | 23.2 | ↑0.6 | |
| 5/4 17:00 | 23.8 | ↑0.6 | |
| 5/4 17:10 | 24.5 | ↑0.7 | |
| 5/4 17:20 | 25.2 | ↑0.7 | |
| 5/4 17:30 | 26.0 | ↑0.8 | |
| 5/4 17:40 | 26.7 | ↑0.7 | |
| 5/4 17:50 | 27.5 | ↑0.8 | |
| 5/4 18:00 | 28.4 | ↑0.9 | |
| 5/4 18:10 | 29.2 | ↑0.8 | |
| 5/4 18:20 | 30.0 | ↑0.8 | |
| 5/4 18:30 | 30.9 | ↑0.9 | |
| 5/4 18:40 | 31.7 | ↑0.8 | |
| 5/4 18:50 | 32.6 | ↑0.9 | |
| 5/4 19:00 | 33.4 | ↑0.8 | |
| 5/4 19:10 | 34.2 | ↑0.8 | |
| 5/4 19:20 | 35.0 | ↑0.8 | |
| 5/4 19:30 | 35.8 | ↑0.8 | |
| 5/4 19:40 | 36.6 | ↑0.8 | |
| 5/4 19:50 | 37.4 | ↑0.8 | |
| 5/4 20:00 | 38.1 | ↑0.7 | |
| 5/4 20:10 | 38.8 | ↑0.7 | |
| 5/4 20:20 | 39.5 | ↑0.7 | |
| 5/4 20:30 | 40.2 | ↑0.7 | |
| 5/4 20:40 | 40.8 | ↑0.6 | |
| 5/4 20:50 | 41.4 | ↑0.6 | |
| 5/4 21:00 | 42.0 | ↑0.6 | |
| 5/4 21:10 | 42.6 | ↑0.6 | |
| 5/4 21:20 | 43.2 | ↑0.6 | |
| 5/4 21:30 | 43.7 | ↑0.5 | |
| 5/4 21:40 | 44.2 | ↑0.5 | |
| 5/4 21:50 | 44.7 | ↑0.5 | |
| 5/4 22:00 | 45.3 | ↑0.6 | |
| 5/4 22:10 | 45.8 | ↑0.5 | |
| 5/4 22:20 | 46.2 | ↑0.4 | |
| 5/4 22:30 | 46.7 | ↑0.5 | |
| 5/4 22:40 | 47.2 | ↑0.5 | |
| 5/4 22:50 | 47.7 | ↑0.5 | |
| 5/4 23:00 | 48.2 | ↑0.5 | |
| 5/4 23:10 | 48.7 | ↑0.5 | |
| 5/4 23:20 | 49.3 | ↑0.6 | |
| 5/4 23:30 | 49.8 | ↑0.5 | |
| 5/4 23:40 | 50.4 | ↑0.6 | |
| 5/4 23:50 | 51.0 | ↑0.6 |