| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(木) |
04:27 | 12:51 | - | - |
| 117cm | 9cm | - | - | |
|
||||
コイセボイ（北海道）2026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 | 70.0 | ↑2.1 | |
| 5/21 00:10 | 72.1 | ↑2.1 | |
| 5/21 00:20 | 74.4 | ↑2.3 | |
| 5/21 00:30 | 76.7 | ↑2.3 | |
| 5/21 00:40 | 79.0 | ↑2.3 | |
| 5/21 00:50 | 81.3 | ↑2.3 | |
| 5/21 01:00 | 83.7 | ↑2.4 | |
| 5/21 01:10 | 86.1 | ↑2.4 | |
| 5/21 01:20 | 88.5 | ↑2.4 | |
| 5/21 01:30 | 90.8 | ↑2.3 | |
| 5/21 01:40 | 93.2 | ↑2.4 | |
| 5/21 01:50 | 95.5 | ↑2.3 | |
| 5/21 02:00 | 97.7 | ↑2.2 | |
| 5/21 02:10 | 99.9 | ↑2.2 | |
| 5/21 02:20 | 101.9 | ↑2.0 | |
| 5/21 02:30 | 103.9 | ↑2.0 | |
| 5/21 02:40 | 105.8 | ↑1.9 | |
| 5/21 02:50 | 107.6 | ↑1.8 | |
| 5/21 03:00 | 109.2 | ↑1.6 | |
| 5/21 03:10 | 110.7 | ↑1.5 | |
| 5/21 03:20 | 112.0 | ↑1.3 | |
| 5/21 03:30 | 113.2 | ↑1.2 | |
| 5/21 03:40 | 114.1 | ↑0.9 | |
| 5/21 03:50 | 115.0 | ↑0.9 | |
| 5/21 04:00 | 115.6 | ↑0.6 | |
| 5/21 04:10 | 116.0 | ↑0.4 | |
| 5/21 04:20 | 116.2 | ↑0.2 | 満潮 |
| 5/21 04:30 | 116.2 | 0 | |
| 5/21 04:40 | 116.1 | ↓-0.1 | |
| 5/21 04:50 | 115.7 | ↓-0.4 | |
| 5/21 05:00 | 115.0 | ↓-0.7 | |
| 5/21 05:10 | 114.2 | ↓-0.8 | |
| 5/21 05:20 | 113.2 | ↓-1.0 | |
| 5/21 05:30 | 112.0 | ↓-1.2 | |
| 5/21 05:40 | 110.5 | ↓-1.5 | |
| 5/21 05:50 | 108.9 | ↓-1.6 | |
| 5/21 06:00 | 107.0 | ↓-1.9 | |
| 5/21 06:10 | 105.0 | ↓-2.0 | |
| 5/21 06:20 | 102.8 | ↓-2.2 | |
| 5/21 06:30 | 100.4 | ↓-2.4 | |
| 5/21 06:40 | 97.9 | ↓-2.5 | |
| 5/21 06:50 | 95.2 | ↓-2.7 | |
| 5/21 07:00 | 92.4 | ↓-2.8 | |
| 5/21 07:10 | 89.5 | ↓-2.9 | |
| 5/21 07:20 | 86.4 | ↓-3.1 | |
| 5/21 07:30 | 83.3 | ↓-3.1 | |
| 5/21 07:40 | 80.0 | ↓-3.3 | |
| 5/21 07:50 | 76.7 | ↓-3.3 | |
| 5/21 08:00 | 73.3 | ↓-3.4 | |
| 5/21 08:10 | 69.9 | ↓-3.4 | |
| 5/21 08:20 | 66.5 | ↓-3.4 | |
| 5/21 08:30 | 63.1 | ↓-3.4 | |
| 5/21 08:40 | 59.6 | ↓-3.5 | 最大潮位差 |
| 5/21 08:50 | 56.2 | ↓-3.4 | |
| 5/21 09:00 | 52.8 | ↓-3.4 | |
| 5/21 09:10 | 49.5 | ↓-3.3 | |
| 5/21 09:20 | 46.2 | ↓-3.3 | |
| 5/21 09:30 | 43.0 | ↓-3.2 | |
| 5/21 09:40 | 39.9 | ↓-3.1 | |
| 5/21 09:50 | 36.8 | ↓-3.1 | |
| 5/21 10:00 | 33.9 | ↓-2.9 | |
| 5/21 10:10 | 31.2 | ↓-2.7 | |
| 5/21 10:20 | 28.5 | ↓-2.7 | |
| 5/21 10:30 | 26.0 | ↓-2.5 | |
| 5/21 10:40 | 23.7 | ↓-2.3 | |
| 5/21 10:50 | 21.5 | ↓-2.2 | |
| 5/21 11:00 | 19.5 | ↓-2.0 | |
| 5/21 11:10 | 17.6 | ↓-1.9 | |
| 5/21 11:20 | 15.9 | ↓-1.7 | |
| 5/21 11:30 | 14.4 | ↓-1.5 | |
| 5/21 11:40 | 13.1 | ↓-1.3 | |
| 5/21 11:50 | 12.0 | ↓-1.1 | |
| 5/21 12:00 | 11.0 | ↓-1.0 | |
| 5/21 12:10 | 10.2 | ↓-0.8 | |
| 5/21 12:20 | 9.6 | ↓-0.6 | |
| 5/21 12:30 | 9.2 | ↓-0.4 | |
| 5/21 12:40 | 8.9 | ↓-0.3 | |
| 5/21 12:50 | 8.9 | 0 | 干潮 |
| 5/21 13:00 | 8.9 | 0 | |
| 5/21 13:10 | 9.2 | ↑0.3 | |
| 5/21 13:20 | 9.5 | ↑0.3 | |
| 5/21 13:30 | 10.1 | ↑0.6 | |
| 5/21 13:40 | 10.7 | ↑0.6 | |
| 5/21 13:50 | 11.5 | ↑0.8 | |
| 5/21 14:00 | 12.3 | ↑0.8 | |
| 5/21 14:10 | 13.3 | ↑1.0 | |
| 5/21 14:20 | 14.4 | ↑1.1 | |
| 5/21 14:30 | 15.5 | ↑1.1 | |
| 5/21 14:40 | 16.8 | ↑1.3 | |
| 5/21 14:50 | 18.0 | ↑1.2 | |
| 5/21 15:00 | 19.4 | ↑1.4 | |
| 5/21 15:10 | 20.7 | ↑1.3 | |
| 5/21 15:20 | 22.1 | ↑1.4 | |
| 5/21 15:30 | 23.5 | ↑1.4 | |
| 5/21 15:40 | 24.9 | ↑1.4 | |
| 5/21 15:50 | 26.3 | ↑1.4 | |
| 5/21 16:00 | 27.7 | ↑1.4 | |
| 5/21 16:10 | 29.1 | ↑1.4 | |
| 5/21 16:20 | 30.4 | ↑1.3 | |
| 5/21 16:30 | 31.7 | ↑1.3 | |
| 5/21 16:40 | 33.0 | ↑1.3 | |
| 5/21 16:50 | 34.2 | ↑1.2 | |
| 5/21 17:00 | 35.3 | ↑1.1 | |
| 5/21 17:10 | 36.4 | ↑1.1 | |
| 5/21 17:20 | 37.5 | ↑1.1 | |
| 5/21 17:30 | 38.4 | ↑0.9 | |
| 5/21 17:40 | 39.3 | ↑0.9 | |
| 5/21 17:50 | 40.1 | ↑0.8 | |
| 5/21 18:00 | 40.9 | ↑0.8 | |
| 5/21 18:10 | 41.5 | ↑0.6 | |
| 5/21 18:20 | 42.1 | ↑0.6 | |
| 5/21 18:30 | 42.7 | ↑0.6 | |
| 5/21 18:40 | 43.2 | ↑0.5 | |
| 5/21 18:50 | 43.6 | ↑0.4 | |
| 5/21 19:00 | 43.9 | ↑0.3 | |
| 5/21 19:10 | 44.2 | ↑0.3 | |
| 5/21 19:20 | 44.5 | ↑0.3 | |
| 5/21 19:30 | 44.7 | ↑0.2 | |
| 5/21 19:40 | 44.9 | ↑0.2 | |
| 5/21 19:50 | 45.0 | ↑0.1 | |
| 5/21 20:00 | 45.2 | ↑0.2 | |
| 5/21 20:10 | 45.3 | ↑0.1 | |
| 5/21 20:20 | 45.4 | ↑0.1 | |
| 5/21 20:30 | 45.5 | ↑0.1 | |
| 5/21 20:40 | 45.7 | ↑0.2 | |
| 5/21 20:50 | 45.8 | ↑0.1 | |
| 5/21 21:00 | 46.0 | ↑0.2 | |
| 5/21 21:10 | 46.2 | ↑0.2 | |
| 5/21 21:20 | 46.5 | ↑0.3 | |
| 5/21 21:30 | 46.8 | ↑0.3 | |
| 5/21 21:40 | 47.1 | ↑0.3 | |
| 5/21 21:50 | 47.6 | ↑0.5 | |
| 5/21 22:00 | 48.1 | ↑0.5 | |
| 5/21 22:10 | 48.6 | ↑0.5 | |
| 5/21 22:20 | 49.3 | ↑0.7 | |
| 5/21 22:30 | 50.0 | ↑0.7 | |
| 5/21 22:40 | 50.8 | ↑0.8 | |
| 5/21 22:50 | 51.8 | ↑1.0 | |
| 5/21 23:00 | 52.8 | ↑1.0 | |
| 5/21 23:10 | 53.9 | ↑1.1 | |
| 5/21 23:20 | 55.1 | ↑1.2 | |
| 5/21 23:30 | 56.4 | ↑1.3 | |
| 5/21 23:40 | 57.7 | ↑1.3 | |
| 5/21 23:50 | 59.2 | ↑1.5 |