| 満潮 | 干潮 | 満潮 | 干潮 |
|
18
(日) |
09:46 | 03:04 | 23:31 | 17:06 |
| 31cm | 20cm | 28cm | 17cm | |
|
||||
留萌（北海道）2021年07月18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 |
|---|---|---|---|
| 7/18 00:00 | 23.7 | ↓-0.4 | |
| 7/18 00:10 | 23.4 | ↓-0.3 | |
| 7/18 00:20 | 23.0 | ↓-0.4 | |
| 7/18 00:30 | 22.7 | ↓-0.3 | |
| 7/18 00:40 | 22.3 | ↓-0.4 | |
| 7/18 00:50 | 22.0 | ↓-0.3 | |
| 7/18 01:00 | 21.7 | ↓-0.3 | |
| 7/18 01:10 | 21.4 | ↓-0.3 | |
| 7/18 01:20 | 21.2 | ↓-0.2 | |
| 7/18 01:30 | 20.9 | ↓-0.3 | |
| 7/18 01:40 | 20.7 | ↓-0.2 | |
| 7/18 01:50 | 20.5 | ↓-0.2 | |
| 7/18 02:00 | 20.3 | ↓-0.2 | |
| 7/18 02:10 | 20.2 | ↓-0.1 | |
| 7/18 02:20 | 20.1 | ↓-0.1 | |
| 7/18 02:30 | 20.0 | ↓-0.1 | |
| 7/18 02:40 | 19.9 | ↓-0.1 | |
| 7/18 02:50 | 19.9 | 0 | |
| 7/18 03:00 | 19.8 | ↓-0.1 | 干潮 |
| 7/18 03:10 | 19.8 | 0 | |
| 7/18 03:20 | 19.9 | ↑0.1 | |
| 7/18 03:30 | 19.9 | 0 | |
| 7/18 03:40 | 20.0 | ↑0.1 | |
| 7/18 03:50 | 20.1 | ↑0.1 | |
| 7/18 04:00 | 20.2 | ↑0.1 | |
| 7/18 04:10 | 20.4 | ↑0.2 | |
| 7/18 04:20 | 20.6 | ↑0.2 | |
| 7/18 04:30 | 20.8 | ↑0.2 | |
| 7/18 04:40 | 21.0 | ↑0.2 | |
| 7/18 04:50 | 21.3 | ↑0.3 | |
| 7/18 05:00 | 21.6 | ↑0.3 | |
| 7/18 05:10 | 21.9 | ↑0.3 | |
| 7/18 05:20 | 22.2 | ↑0.3 | |
| 7/18 05:30 | 22.6 | ↑0.4 | |
| 7/18 05:40 | 22.9 | ↑0.3 | |
| 7/18 05:50 | 23.3 | ↑0.4 | |
| 7/18 06:00 | 23.7 | ↑0.4 | |
| 7/18 06:10 | 24.1 | ↑0.4 | |
| 7/18 06:20 | 24.5 | ↑0.4 | |
| 7/18 06:30 | 24.9 | ↑0.4 | |
| 7/18 06:40 | 25.4 | ↑0.5 | 最大潮位差 |
| 7/18 06:50 | 25.8 | ↑0.4 | |
| 7/18 07:00 | 26.2 | ↑0.4 | |
| 7/18 07:10 | 26.6 | ↑0.4 | |
| 7/18 07:20 | 27.0 | ↑0.4 | |
| 7/18 07:30 | 27.4 | ↑0.4 | |
| 7/18 07:40 | 27.7 | ↑0.3 | |
| 7/18 07:50 | 28.1 | ↑0.4 | |
| 7/18 08:00 | 28.4 | ↑0.3 | |
| 7/18 08:10 | 28.7 | ↑0.3 | |
| 7/18 08:20 | 29.0 | ↑0.3 | |
| 7/18 08:30 | 29.2 | ↑0.2 | |
| 7/18 08:40 | 29.5 | ↑0.3 | |
| 7/18 08:50 | 29.7 | ↑0.2 | |
| 7/18 09:00 | 29.8 | ↑0.1 | |
| 7/18 09:10 | 30.0 | ↑0.2 | |
| 7/18 09:20 | 30.1 | ↑0.1 | |
| 7/18 09:30 | 30.1 | 0 | |
| 7/18 09:40 | 30.2 | ↑0.1 | 満潮 |
| 7/18 09:50 | 30.2 | 0 | |
| 7/18 10:00 | 30.1 | ↓-0.1 | |
| 7/18 10:10 | 30.1 | 0 | |
| 7/18 10:20 | 29.9 | ↓-0.2 | |
| 7/18 10:30 | 29.8 | ↓-0.1 | |
| 7/18 10:40 | 29.6 | ↓-0.2 | |
| 7/18 10:50 | 29.4 | ↓-0.2 | |
| 7/18 11:00 | 29.1 | ↓-0.3 | |
| 7/18 11:10 | 28.8 | ↓-0.3 | |
| 7/18 11:20 | 28.5 | ↓-0.3 | |
| 7/18 11:30 | 28.1 | ↓-0.4 | |
| 7/18 11:40 | 27.8 | ↓-0.3 | |
| 7/18 11:50 | 27.4 | ↓-0.4 | |
| 7/18 12:00 | 26.9 | ↓-0.5 | 最大潮位差 |
| 7/18 12:10 | 26.5 | ↓-0.4 | |
| 7/18 12:20 | 26.0 | ↓-0.5 | 最大潮位差 |
| 7/18 12:30 | 25.6 | ↓-0.4 | |
| 7/18 12:40 | 25.1 | ↓-0.5 | 最大潮位差 |
| 7/18 12:50 | 24.7 | ↓-0.4 | |
| 7/18 13:00 | 24.2 | ↓-0.5 | 最大潮位差 |
| 7/18 13:10 | 23.7 | ↓-0.5 | 最大潮位差 |
| 7/18 13:20 | 23.3 | ↓-0.4 | |
| 7/18 13:30 | 22.8 | ↓-0.5 | 最大潮位差 |
| 7/18 13:40 | 22.4 | ↓-0.4 | |
| 7/18 13:50 | 21.9 | ↓-0.5 | 最大潮位差 |
| 7/18 14:00 | 21.5 | ↓-0.4 | |
| 7/18 14:10 | 21.1 | ↓-0.4 | |
| 7/18 14:20 | 20.7 | ↓-0.4 | |
| 7/18 14:30 | 20.3 | ↓-0.4 | |
| 7/18 14:40 | 19.9 | ↓-0.4 | |
| 7/18 14:50 | 19.6 | ↓-0.3 | |
| 7/18 15:00 | 19.3 | ↓-0.3 | |
| 7/18 15:10 | 18.9 | ↓-0.4 | |
| 7/18 15:20 | 18.6 | ↓-0.3 | |
| 7/18 15:30 | 18.4 | ↓-0.2 | |
| 7/18 15:40 | 18.1 | ↓-0.3 | |
| 7/18 15:50 | 17.9 | ↓-0.2 | |
| 7/18 16:00 | 17.6 | ↓-0.3 | |
| 7/18 16:10 | 17.5 | ↓-0.1 | |
| 7/18 16:20 | 17.3 | ↓-0.2 | |
| 7/18 16:30 | 17.2 | ↓-0.1 | |
| 7/18 16:40 | 17.1 | ↓-0.1 | |
| 7/18 16:50 | 17.0 | ↓-0.1 | |
| 7/18 17:00 | 17.0 | 0 | 干潮 |
| 7/18 17:10 | 17.0 | 0 | |
| 7/18 17:20 | 17.0 | 0 | |
| 7/18 17:30 | 17.1 | ↑0.1 | |
| 7/18 17:40 | 17.2 | ↑0.1 | |
| 7/18 17:50 | 17.3 | ↑0.1 | |
| 7/18 18:00 | 17.5 | ↑0.2 | |
| 7/18 18:10 | 17.7 | ↑0.2 | |
| 7/18 18:20 | 17.9 | ↑0.2 | |
| 7/18 18:30 | 18.2 | ↑0.3 | |
| 7/18 18:40 | 18.5 | ↑0.3 | |
| 7/18 18:50 | 18.8 | ↑0.3 | |
| 7/18 19:00 | 19.1 | ↑0.3 | |
| 7/18 19:10 | 19.5 | ↑0.4 | |
| 7/18 19:20 | 19.9 | ↑0.4 | |
| 7/18 19:30 | 20.2 | ↑0.3 | |
| 7/18 19:40 | 20.6 | ↑0.4 | |
| 7/18 19:50 | 21.0 | ↑0.4 | |
| 7/18 20:00 | 21.4 | ↑0.4 | |
| 7/18 20:10 | 21.9 | ↑0.5 | 最大潮位差 |
| 7/18 20:20 | 22.3 | ↑0.4 | |
| 7/18 20:30 | 22.7 | ↑0.4 | |
| 7/18 20:40 | 23.1 | ↑0.4 | |
| 7/18 20:50 | 23.5 | ↑0.4 | |
| 7/18 21:00 | 23.9 | ↑0.4 | |
| 7/18 21:10 | 24.3 | ↑0.4 | |
| 7/18 21:20 | 24.6 | ↑0.3 | |
| 7/18 21:30 | 25.0 | ↑0.4 | |
| 7/18 21:40 | 25.3 | ↑0.3 | |
| 7/18 21:50 | 25.6 | ↑0.3 | |
| 7/18 22:00 | 25.9 | ↑0.3 | |
| 7/18 22:10 | 26.2 | ↑0.3 | |
| 7/18 22:20 | 26.4 | ↑0.2 | |
| 7/18 22:30 | 26.6 | ↑0.2 | |
| 7/18 22:40 | 26.8 | ↑0.2 | |
| 7/18 22:50 | 26.9 | ↑0.1 | |
| 7/18 23:00 | 27.0 | ↑0.1 | |
| 7/18 23:10 | 27.1 | ↑0.1 | |
| 7/18 23:20 | 27.2 | ↑0.1 | |
| 7/18 23:30 | 27.2 | 0 | 満潮 |
| 7/18 23:40 | 27.2 | 0 | |
| 7/18 23:50 | 27.1 | ↓-0.1 |