| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(月) |
03:25 | 11:23 | 18:02 | 20:37 |
| 117cm | 4cm | 52cm | 48cm | |
|
||||
コイセボイ（北海道）2030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 | 81.5 | ↑2.4 | |
| 5/20 00:10 | 84.1 | ↑2.6 | |
| 5/20 00:20 | 86.6 | ↑2.5 | |
| 5/20 00:30 | 89.1 | ↑2.5 | |
| 5/20 00:40 | 91.6 | ↑2.5 | |
| 5/20 00:50 | 94.0 | ↑2.4 | |
| 5/20 01:00 | 96.4 | ↑2.4 | |
| 5/20 01:10 | 98.7 | ↑2.3 | |
| 5/20 01:20 | 101.0 | ↑2.3 | |
| 5/20 01:30 | 103.1 | ↑2.1 | |
| 5/20 01:40 | 105.1 | ↑2.0 | |
| 5/20 01:50 | 107.0 | ↑1.9 | |
| 5/20 02:00 | 108.8 | ↑1.8 | |
| 5/20 02:10 | 110.4 | ↑1.6 | |
| 5/20 02:20 | 111.8 | ↑1.4 | |
| 5/20 02:30 | 113.0 | ↑1.2 | |
| 5/20 02:40 | 114.1 | ↑1.1 | |
| 5/20 02:50 | 114.9 | ↑0.8 | |
| 5/20 03:00 | 115.6 | ↑0.7 | |
| 5/20 03:10 | 116.0 | ↑0.4 | |
| 5/20 03:20 | 116.2 | ↑0.2 | 満潮 |
| 5/20 03:30 | 116.2 | 0 | |
| 5/20 03:40 | 115.9 | ↓-0.3 | |
| 5/20 03:50 | 115.4 | ↓-0.5 | |
| 5/20 04:00 | 114.6 | ↓-0.8 | |
| 5/20 04:10 | 113.7 | ↓-0.9 | |
| 5/20 04:20 | 112.5 | ↓-1.2 | |
| 5/20 04:30 | 111.0 | ↓-1.5 | |
| 5/20 04:40 | 109.3 | ↓-1.7 | |
| 5/20 04:50 | 107.4 | ↓-1.9 | |
| 5/20 05:00 | 105.3 | ↓-2.1 | |
| 5/20 05:10 | 103.0 | ↓-2.3 | |
| 5/20 05:20 | 100.5 | ↓-2.5 | |
| 5/20 05:30 | 97.8 | ↓-2.7 | |
| 5/20 05:40 | 94.9 | ↓-2.9 | |
| 5/20 05:50 | 91.9 | ↓-3.0 | |
| 5/20 06:00 | 88.7 | ↓-3.2 | |
| 5/20 06:10 | 85.4 | ↓-3.3 | |
| 5/20 06:20 | 82.0 | ↓-3.4 | |
| 5/20 06:30 | 78.4 | ↓-3.6 | |
| 5/20 06:40 | 74.8 | ↓-3.6 | |
| 5/20 06:50 | 71.1 | ↓-3.7 | |
| 5/20 07:00 | 67.4 | ↓-3.7 | |
| 5/20 07:10 | 63.6 | ↓-3.8 | 最大潮位差 |
| 5/20 07:20 | 59.8 | ↓-3.8 | 最大潮位差 |
| 5/20 07:30 | 56.1 | ↓-3.7 | |
| 5/20 07:40 | 52.3 | ↓-3.8 | 最大潮位差 |
| 5/20 07:50 | 48.6 | ↓-3.7 | |
| 5/20 08:00 | 44.9 | ↓-3.7 | |
| 5/20 08:10 | 41.3 | ↓-3.6 | |
| 5/20 08:20 | 37.8 | ↓-3.5 | |
| 5/20 08:30 | 34.4 | ↓-3.4 | |
| 5/20 08:40 | 31.2 | ↓-3.2 | |
| 5/20 08:50 | 28.1 | ↓-3.1 | |
| 5/20 09:00 | 25.1 | ↓-3.0 | |
| 5/20 09:10 | 22.2 | ↓-2.9 | |
| 5/20 09:20 | 19.6 | ↓-2.6 | |
| 5/20 09:30 | 17.1 | ↓-2.5 | |
| 5/20 09:40 | 14.9 | ↓-2.2 | |
| 5/20 09:50 | 12.8 | ↓-2.1 | |
| 5/20 10:00 | 10.9 | ↓-1.9 | |
| 5/20 10:10 | 9.3 | ↓-1.6 | |
| 5/20 10:20 | 7.8 | ↓-1.5 | |
| 5/20 10:30 | 6.6 | ↓-1.2 | |
| 5/20 10:40 | 5.6 | ↓-1.0 | |
| 5/20 10:50 | 4.8 | ↓-0.8 | |
| 5/20 11:00 | 4.3 | ↓-0.5 | |
| 5/20 11:10 | 3.9 | ↓-0.4 | |
| 5/20 11:20 | 3.8 | ↓-0.1 | 干潮 |
| 5/20 11:30 | 3.8 | 0 | |
| 5/20 11:40 | 4.1 | ↑0.3 | |
| 5/20 11:50 | 4.6 | ↑0.5 | |
| 5/20 12:00 | 5.2 | ↑0.6 | |
| 5/20 12:10 | 6.0 | ↑0.8 | |
| 5/20 12:20 | 7.0 | ↑1.0 | |
| 5/20 12:30 | 8.1 | ↑1.1 | |
| 5/20 12:40 | 9.4 | ↑1.3 | |
| 5/20 12:50 | 10.8 | ↑1.4 | |
| 5/20 13:00 | 12.3 | ↑1.5 | |
| 5/20 13:10 | 14.0 | ↑1.7 | |
| 5/20 13:20 | 15.7 | ↑1.7 | |
| 5/20 13:30 | 17.4 | ↑1.7 | |
| 5/20 13:40 | 19.3 | ↑1.9 | |
| 5/20 13:50 | 21.2 | ↑1.9 | |
| 5/20 14:00 | 23.1 | ↑1.9 | |
| 5/20 14:10 | 25.0 | ↑1.9 | |
| 5/20 14:20 | 26.9 | ↑1.9 | |
| 5/20 14:30 | 28.8 | ↑1.9 | |
| 5/20 14:40 | 30.7 | ↑1.9 | |
| 5/20 14:50 | 32.6 | ↑1.9 | |
| 5/20 15:00 | 34.4 | ↑1.8 | |
| 5/20 15:10 | 36.1 | ↑1.7 | |
| 5/20 15:20 | 37.8 | ↑1.7 | |
| 5/20 15:30 | 39.4 | ↑1.6 | |
| 5/20 15:40 | 40.9 | ↑1.5 | |
| 5/20 15:50 | 42.4 | ↑1.5 | |
| 5/20 16:00 | 43.7 | ↑1.3 | |
| 5/20 16:10 | 44.9 | ↑1.2 | |
| 5/20 16:20 | 46.0 | ↑1.1 | |
| 5/20 16:30 | 47.0 | ↑1.0 | |
| 5/20 16:40 | 47.9 | ↑0.9 | |
| 5/20 16:50 | 48.7 | ↑0.8 | |
| 5/20 17:00 | 49.3 | ↑0.6 | |
| 5/20 17:10 | 49.9 | ↑0.6 | |
| 5/20 17:20 | 50.3 | ↑0.4 | |
| 5/20 17:30 | 50.7 | ↑0.4 | |
| 5/20 17:40 | 50.9 | ↑0.2 | |
| 5/20 17:50 | 51.0 | ↑0.1 | |
| 5/20 18:00 | 51.1 | ↑0.1 | 満潮 |
| 5/20 18:10 | 51.1 | 0 | |
| 5/20 18:20 | 51.0 | ↓-0.1 | |
| 5/20 18:30 | 50.8 | ↓-0.2 | |
| 5/20 18:40 | 50.6 | ↓-0.2 | |
| 5/20 18:50 | 50.3 | ↓-0.3 | |
| 5/20 19:00 | 50.0 | ↓-0.3 | |
| 5/20 19:10 | 49.7 | ↓-0.3 | |
| 5/20 19:20 | 49.4 | ↓-0.3 | |
| 5/20 19:30 | 49.0 | ↓-0.4 | |
| 5/20 19:40 | 48.7 | ↓-0.3 | |
| 5/20 19:50 | 48.4 | ↓-0.3 | |
| 5/20 20:00 | 48.2 | ↓-0.2 | |
| 5/20 20:10 | 48.0 | ↓-0.2 | |
| 5/20 20:20 | 47.8 | ↓-0.2 | |
| 5/20 20:30 | 47.7 | ↓-0.1 | 干潮 |
| 5/20 20:40 | 47.7 | 0 | |
| 5/20 20:50 | 47.8 | ↑0.1 | |
| 5/20 21:00 | 48.0 | ↑0.2 | |
| 5/20 21:10 | 48.3 | ↑0.3 | |
| 5/20 21:20 | 48.6 | ↑0.3 | |
| 5/20 21:30 | 49.1 | ↑0.5 | |
| 5/20 21:40 | 49.8 | ↑0.7 | |
| 5/20 21:50 | 50.5 | ↑0.7 | |
| 5/20 22:00 | 51.4 | ↑0.9 | |
| 5/20 22:10 | 52.4 | ↑1.0 | |
| 5/20 22:20 | 53.5 | ↑1.1 | |
| 5/20 22:30 | 54.8 | ↑1.3 | |
| 5/20 22:40 | 56.2 | ↑1.4 | |
| 5/20 22:50 | 57.7 | ↑1.5 | |
| 5/20 23:00 | 59.4 | ↑1.7 | |
| 5/20 23:10 | 61.1 | ↑1.7 | |
| 5/20 23:20 | 63.0 | ↑1.9 | |
| 5/20 23:30 | 65.0 | ↑2.0 | |
| 5/20 23:40 | 67.0 | ↑2.0 | |
| 5/20 23:50 | 69.2 | ↑2.2 |