| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(水) |
03:46 | 12:04 | - | - |
| 120cm | 4cm | - | - | |
|
||||
コイセボイ（北海道）2026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 | 80.1 | ↑2.4 | |
| 5/20 00:10 | 82.6 | ↑2.5 | |
| 5/20 00:20 | 85.1 | ↑2.5 | |
| 5/20 00:30 | 87.6 | ↑2.5 | |
| 5/20 00:40 | 90.1 | ↑2.5 | |
| 5/20 00:50 | 92.6 | ↑2.5 | |
| 5/20 01:00 | 95.1 | ↑2.5 | |
| 5/20 01:10 | 97.5 | ↑2.4 | |
| 5/20 01:20 | 99.9 | ↑2.4 | |
| 5/20 01:30 | 102.2 | ↑2.3 | |
| 5/20 01:40 | 104.4 | ↑2.2 | |
| 5/20 01:50 | 106.6 | ↑2.2 | |
| 5/20 02:00 | 108.6 | ↑2.0 | |
| 5/20 02:10 | 110.4 | ↑1.8 | |
| 5/20 02:20 | 112.2 | ↑1.8 | |
| 5/20 02:30 | 113.8 | ↑1.6 | |
| 5/20 02:40 | 115.2 | ↑1.4 | |
| 5/20 02:50 | 116.4 | ↑1.2 | |
| 5/20 03:00 | 117.5 | ↑1.1 | |
| 5/20 03:10 | 118.3 | ↑0.8 | |
| 5/20 03:20 | 119.0 | ↑0.7 | |
| 5/20 03:30 | 119.4 | ↑0.4 | |
| 5/20 03:40 | 119.7 | ↑0.3 | 満潮 |
| 5/20 03:50 | 119.7 | 0 | |
| 5/20 04:00 | 119.4 | ↓-0.3 | |
| 5/20 04:10 | 119.0 | ↓-0.4 | |
| 5/20 04:20 | 118.3 | ↓-0.7 | |
| 5/20 04:30 | 117.4 | ↓-0.9 | |
| 5/20 04:40 | 116.3 | ↓-1.1 | |
| 5/20 04:50 | 114.9 | ↓-1.4 | |
| 5/20 05:00 | 113.3 | ↓-1.6 | |
| 5/20 05:10 | 111.5 | ↓-1.8 | |
| 5/20 05:20 | 109.5 | ↓-2.0 | |
| 5/20 05:30 | 107.2 | ↓-2.3 | |
| 5/20 05:40 | 104.8 | ↓-2.4 | |
| 5/20 05:50 | 102.2 | ↓-2.6 | |
| 5/20 06:00 | 99.4 | ↓-2.8 | |
| 5/20 06:10 | 96.5 | ↓-2.9 | |
| 5/20 06:20 | 93.4 | ↓-3.1 | |
| 5/20 06:30 | 90.1 | ↓-3.3 | |
| 5/20 06:40 | 86.8 | ↓-3.3 | |
| 5/20 06:50 | 83.3 | ↓-3.5 | |
| 5/20 07:00 | 79.7 | ↓-3.6 | |
| 5/20 07:10 | 76.1 | ↓-3.6 | |
| 5/20 07:20 | 72.4 | ↓-3.7 | |
| 5/20 07:30 | 68.6 | ↓-3.8 | 最大潮位差 |
| 5/20 07:40 | 64.9 | ↓-3.7 | |
| 5/20 07:50 | 61.1 | ↓-3.8 | 最大潮位差 |
| 5/20 08:00 | 57.3 | ↓-3.8 | 最大潮位差 |
| 5/20 08:10 | 53.6 | ↓-3.7 | |
| 5/20 08:20 | 49.9 | ↓-3.7 | |
| 5/20 08:30 | 46.2 | ↓-3.7 | |
| 5/20 08:40 | 42.6 | ↓-3.6 | |
| 5/20 08:50 | 39.1 | ↓-3.5 | |
| 5/20 09:00 | 35.8 | ↓-3.3 | |
| 5/20 09:10 | 32.5 | ↓-3.3 | |
| 5/20 09:20 | 29.3 | ↓-3.2 | |
| 5/20 09:30 | 26.3 | ↓-3.0 | |
| 5/20 09:40 | 23.5 | ↓-2.8 | |
| 5/20 09:50 | 20.8 | ↓-2.7 | |
| 5/20 10:00 | 18.3 | ↓-2.5 | |
| 5/20 10:10 | 15.9 | ↓-2.4 | |
| 5/20 10:20 | 13.8 | ↓-2.1 | |
| 5/20 10:30 | 11.8 | ↓-2.0 | |
| 5/20 10:40 | 10.0 | ↓-1.8 | |
| 5/20 10:50 | 8.5 | ↓-1.5 | |
| 5/20 11:00 | 7.1 | ↓-1.4 | |
| 5/20 11:10 | 6.0 | ↓-1.1 | |
| 5/20 11:20 | 5.0 | ↓-1.0 | |
| 5/20 11:30 | 4.3 | ↓-0.7 | |
| 5/20 11:40 | 3.7 | ↓-0.6 | |
| 5/20 11:50 | 3.4 | ↓-0.3 | |
| 5/20 12:00 | 3.2 | ↓-0.2 | 干潮 |
| 5/20 12:10 | 3.3 | ↑0.1 | |
| 5/20 12:20 | 3.5 | ↑0.2 | |
| 5/20 12:30 | 3.9 | ↑0.4 | |
| 5/20 12:40 | 4.4 | ↑0.5 | |
| 5/20 12:50 | 5.1 | ↑0.7 | |
| 5/20 13:00 | 6.0 | ↑0.9 | |
| 5/20 13:10 | 6.9 | ↑0.9 | |
| 5/20 13:20 | 8.0 | ↑1.1 | |
| 5/20 13:30 | 9.2 | ↑1.2 | |
| 5/20 13:40 | 10.6 | ↑1.4 | |
| 5/20 13:50 | 12.0 | ↑1.4 | |
| 5/20 14:00 | 13.4 | ↑1.4 | |
| 5/20 14:10 | 15.0 | ↑1.6 | |
| 5/20 14:20 | 16.5 | ↑1.5 | |
| 5/20 14:30 | 18.2 | ↑1.7 | |
| 5/20 14:40 | 19.8 | ↑1.6 | |
| 5/20 14:50 | 21.5 | ↑1.7 | |
| 5/20 15:00 | 23.1 | ↑1.6 | |
| 5/20 15:10 | 24.8 | ↑1.7 | |
| 5/20 15:20 | 26.4 | ↑1.6 | |
| 5/20 15:30 | 28.0 | ↑1.6 | |
| 5/20 15:40 | 29.5 | ↑1.5 | |
| 5/20 15:50 | 31.1 | ↑1.6 | |
| 5/20 16:00 | 32.5 | ↑1.4 | |
| 5/20 16:10 | 33.9 | ↑1.4 | |
| 5/20 16:20 | 35.2 | ↑1.3 | |
| 5/20 16:30 | 36.5 | ↑1.3 | |
| 5/20 16:40 | 37.6 | ↑1.1 | |
| 5/20 16:50 | 38.7 | ↑1.1 | |
| 5/20 17:00 | 39.7 | ↑1.0 | |
| 5/20 17:10 | 40.6 | ↑0.9 | |
| 5/20 17:20 | 41.4 | ↑0.8 | |
| 5/20 17:30 | 42.2 | ↑0.8 | |
| 5/20 17:40 | 42.8 | ↑0.6 | |
| 5/20 17:50 | 43.4 | ↑0.6 | |
| 5/20 18:00 | 43.9 | ↑0.5 | |
| 5/20 18:10 | 44.3 | ↑0.4 | |
| 5/20 18:20 | 44.7 | ↑0.4 | |
| 5/20 18:30 | 45.0 | ↑0.3 | |
| 5/20 18:40 | 45.2 | ↑0.2 | |
| 5/20 18:50 | 45.4 | ↑0.2 | |
| 5/20 19:00 | 45.6 | ↑0.2 | |
| 5/20 19:10 | 45.7 | ↑0.1 | |
| 5/20 19:20 | 45.8 | ↑0.1 | |
| 5/20 19:30 | 45.8 | 0 | |
| 5/20 19:40 | 45.9 | ↑0.1 | |
| 5/20 19:50 | 46.0 | ↑0.1 | |
| 5/20 20:00 | 46.0 | 0 | |
| 5/20 20:10 | 46.1 | ↑0.1 | |
| 5/20 20:20 | 46.3 | ↑0.2 | |
| 5/20 20:30 | 46.5 | ↑0.2 | |
| 5/20 20:40 | 46.7 | ↑0.2 | |
| 5/20 20:50 | 47.0 | ↑0.3 | |
| 5/20 21:00 | 47.3 | ↑0.3 | |
| 5/20 21:10 | 47.7 | ↑0.4 | |
| 5/20 21:20 | 48.2 | ↑0.5 | |
| 5/20 21:30 | 48.8 | ↑0.6 | |
| 5/20 21:40 | 49.5 | ↑0.7 | |
| 5/20 21:50 | 50.3 | ↑0.8 | |
| 5/20 22:00 | 51.2 | ↑0.9 | |
| 5/20 22:10 | 52.1 | ↑0.9 | |
| 5/20 22:20 | 53.2 | ↑1.1 | |
| 5/20 22:30 | 54.4 | ↑1.2 | |
| 5/20 22:40 | 55.8 | ↑1.4 | |
| 5/20 22:50 | 57.2 | ↑1.4 | |
| 5/20 23:00 | 58.7 | ↑1.5 | |
| 5/20 23:10 | 60.3 | ↑1.6 | |
| 5/20 23:20 | 62.1 | ↑1.8 | |
| 5/20 23:30 | 63.9 | ↑1.8 | |
| 5/20 23:40 | 65.9 | ↑2.0 | |
| 5/20 23:50 | 67.9 | ↑2.0 |