| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(火) |
04:04 | 12:04 | 18:39 | 21:14 |
| 115cm | 9cm | 51cm | 48cm | |
|
||||
コイセボイ（北海道）2030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 | 71.4 | ↑2.2 | |
| 5/21 00:10 | 73.8 | ↑2.4 | |
| 5/21 00:20 | 76.1 | ↑2.3 | |
| 5/21 00:30 | 78.5 | ↑2.4 | |
| 5/21 00:40 | 80.9 | ↑2.4 | |
| 5/21 00:50 | 83.4 | ↑2.5 | |
| 5/21 01:00 | 85.9 | ↑2.5 | |
| 5/21 01:10 | 88.3 | ↑2.4 | |
| 5/21 01:20 | 90.7 | ↑2.4 | |
| 5/21 01:30 | 93.1 | ↑2.4 | |
| 5/21 01:40 | 95.4 | ↑2.3 | |
| 5/21 01:50 | 97.6 | ↑2.2 | |
| 5/21 02:00 | 99.8 | ↑2.2 | |
| 5/21 02:10 | 101.8 | ↑2.0 | |
| 5/21 02:20 | 103.8 | ↑2.0 | |
| 5/21 02:30 | 105.6 | ↑1.8 | |
| 5/21 02:40 | 107.3 | ↑1.7 | |
| 5/21 02:50 | 108.8 | ↑1.5 | |
| 5/21 03:00 | 110.2 | ↑1.4 | |
| 5/21 03:10 | 111.3 | ↑1.1 | |
| 5/21 03:20 | 112.3 | ↑1.0 | |
| 5/21 03:30 | 113.1 | ↑0.8 | |
| 5/21 03:40 | 113.7 | ↑0.6 | |
| 5/21 03:50 | 114.1 | ↑0.4 | |
| 5/21 04:00 | 114.3 | ↑0.2 | 満潮 |
| 5/21 04:10 | 114.2 | ↓-0.1 | |
| 5/21 04:20 | 114.0 | ↓-0.2 | |
| 5/21 04:30 | 113.5 | ↓-0.5 | |
| 5/21 04:40 | 112.7 | ↓-0.8 | |
| 5/21 04:50 | 111.8 | ↓-0.9 | |
| 5/21 05:00 | 110.6 | ↓-1.2 | |
| 5/21 05:10 | 109.3 | ↓-1.3 | |
| 5/21 05:20 | 107.6 | ↓-1.7 | |
| 5/21 05:30 | 105.8 | ↓-1.8 | |
| 5/21 05:40 | 103.8 | ↓-2.0 | |
| 5/21 05:50 | 101.6 | ↓-2.2 | |
| 5/21 06:00 | 99.2 | ↓-2.4 | |
| 5/21 06:10 | 96.7 | ↓-2.5 | |
| 5/21 06:20 | 93.9 | ↓-2.8 | |
| 5/21 06:30 | 91.1 | ↓-2.8 | |
| 5/21 06:40 | 88.0 | ↓-3.1 | |
| 5/21 06:50 | 84.9 | ↓-3.1 | |
| 5/21 07:00 | 81.6 | ↓-3.3 | |
| 5/21 07:10 | 78.3 | ↓-3.3 | |
| 5/21 07:20 | 74.9 | ↓-3.4 | |
| 5/21 07:30 | 71.4 | ↓-3.5 | |
| 5/21 07:40 | 67.9 | ↓-3.5 | |
| 5/21 07:50 | 64.3 | ↓-3.6 | 最大潮位差 |
| 5/21 08:00 | 60.8 | ↓-3.5 | |
| 5/21 08:10 | 57.2 | ↓-3.6 | 最大潮位差 |
| 5/21 08:20 | 53.7 | ↓-3.5 | |
| 5/21 08:30 | 50.2 | ↓-3.5 | |
| 5/21 08:40 | 46.8 | ↓-3.4 | |
| 5/21 08:50 | 43.4 | ↓-3.4 | |
| 5/21 09:00 | 40.1 | ↓-3.3 | |
| 5/21 09:10 | 36.9 | ↓-3.2 | |
| 5/21 09:20 | 33.9 | ↓-3.0 | |
| 5/21 09:30 | 30.9 | ↓-3.0 | |
| 5/21 09:40 | 28.1 | ↓-2.8 | |
| 5/21 09:50 | 25.5 | ↓-2.6 | |
| 5/21 10:00 | 23.0 | ↓-2.5 | |
| 5/21 10:10 | 20.7 | ↓-2.3 | |
| 5/21 10:20 | 18.6 | ↓-2.1 | |
| 5/21 10:30 | 16.6 | ↓-2.0 | |
| 5/21 10:40 | 14.9 | ↓-1.7 | |
| 5/21 10:50 | 13.3 | ↓-1.6 | |
| 5/21 11:00 | 12.0 | ↓-1.3 | |
| 5/21 11:10 | 10.8 | ↓-1.2 | |
| 5/21 11:20 | 9.9 | ↓-0.9 | |
| 5/21 11:30 | 9.1 | ↓-0.8 | |
| 5/21 11:40 | 8.6 | ↓-0.5 | |
| 5/21 11:50 | 8.2 | ↓-0.4 | |
| 5/21 12:00 | 8.1 | ↓-0.1 | 干潮 |
| 5/21 12:10 | 8.1 | 0 | |
| 5/21 12:20 | 8.3 | ↑0.2 | |
| 5/21 12:30 | 8.7 | ↑0.4 | |
| 5/21 12:40 | 9.3 | ↑0.6 | |
| 5/21 12:50 | 10.1 | ↑0.8 | |
| 5/21 13:00 | 10.9 | ↑0.8 | |
| 5/21 13:10 | 12.0 | ↑1.1 | |
| 5/21 13:20 | 13.1 | ↑1.1 | |
| 5/21 13:30 | 14.4 | ↑1.3 | |
| 5/21 13:40 | 15.7 | ↑1.3 | |
| 5/21 13:50 | 17.2 | ↑1.5 | |
| 5/21 14:00 | 18.7 | ↑1.5 | |
| 5/21 14:10 | 20.3 | ↑1.6 | |
| 5/21 14:20 | 22.0 | ↑1.7 | |
| 5/21 14:30 | 23.7 | ↑1.7 | |
| 5/21 14:40 | 25.4 | ↑1.7 | |
| 5/21 14:50 | 27.1 | ↑1.7 | |
| 5/21 15:00 | 28.9 | ↑1.8 | |
| 5/21 15:10 | 30.6 | ↑1.7 | |
| 5/21 15:20 | 32.3 | ↑1.7 | |
| 5/21 15:30 | 34.0 | ↑1.7 | |
| 5/21 15:40 | 35.6 | ↑1.6 | |
| 5/21 15:50 | 37.2 | ↑1.6 | |
| 5/21 16:00 | 38.7 | ↑1.5 | |
| 5/21 16:10 | 40.1 | ↑1.4 | |
| 5/21 16:20 | 41.5 | ↑1.4 | |
| 5/21 16:30 | 42.7 | ↑1.2 | |
| 5/21 16:40 | 43.9 | ↑1.2 | |
| 5/21 16:50 | 45.0 | ↑1.1 | |
| 5/21 17:00 | 46.0 | ↑1.0 | |
| 5/21 17:10 | 46.8 | ↑0.8 | |
| 5/21 17:20 | 47.6 | ↑0.8 | |
| 5/21 17:30 | 48.3 | ↑0.7 | |
| 5/21 17:40 | 48.9 | ↑0.6 | |
| 5/21 17:50 | 49.3 | ↑0.4 | |
| 5/21 18:00 | 49.7 | ↑0.4 | |
| 5/21 18:10 | 50.0 | ↑0.3 | |
| 5/21 18:20 | 50.2 | ↑0.2 | |
| 5/21 18:30 | 50.3 | ↑0.1 | 満潮 |
| 5/21 18:40 | 50.3 | 0 | |
| 5/21 18:50 | 50.2 | ↓-0.1 | |
| 5/21 19:00 | 50.1 | ↓-0.1 | |
| 5/21 19:10 | 50.0 | ↓-0.1 | |
| 5/21 19:20 | 49.8 | ↓-0.2 | |
| 5/21 19:30 | 49.5 | ↓-0.3 | |
| 5/21 19:40 | 49.2 | ↓-0.3 | |
| 5/21 19:50 | 48.9 | ↓-0.3 | |
| 5/21 20:00 | 48.7 | ↓-0.2 | |
| 5/21 20:10 | 48.4 | ↓-0.3 | |
| 5/21 20:20 | 48.1 | ↓-0.3 | |
| 5/21 20:30 | 47.8 | ↓-0.3 | |
| 5/21 20:40 | 47.6 | ↓-0.2 | |
| 5/21 20:50 | 47.4 | ↓-0.2 | |
| 5/21 21:00 | 47.3 | ↓-0.1 | |
| 5/21 21:10 | 47.3 | 0 | 干潮 |
| 5/21 21:20 | 47.3 | 0 | |
| 5/21 21:30 | 47.4 | ↑0.1 | |
| 5/21 21:40 | 47.6 | ↑0.2 | |
| 5/21 21:50 | 47.8 | ↑0.2 | |
| 5/21 22:00 | 48.2 | ↑0.4 | |
| 5/21 22:10 | 48.7 | ↑0.5 | |
| 5/21 22:20 | 49.3 | ↑0.6 | |
| 5/21 22:30 | 50.0 | ↑0.7 | |
| 5/21 22:40 | 50.9 | ↑0.9 | |
| 5/21 22:50 | 51.8 | ↑0.9 | |
| 5/21 23:00 | 52.9 | ↑1.1 | |
| 5/21 23:10 | 54.1 | ↑1.2 | |
| 5/21 23:20 | 55.4 | ↑1.3 | |
| 5/21 23:30 | 56.9 | ↑1.5 | |
| 5/21 23:40 | 58.4 | ↑1.5 | |
| 5/21 23:50 | 60.0 | ↑1.6 |