20 (日)	11:15	05:18	23:04	16:13
	66cm	46cm	88cm	53cm
若潮 出 03:38 入 19:08 出 13:34 入 00:27

コイセボイ（北海道）2021年06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
6/20 00:00	74.0	↓-0.8
6/20 00:10	73.1	↓-0.9
6/20 00:20	72.2	↓-0.9
6/20 00:30	71.1	↓-1.1
6/20 00:40	70.1	↓-1.0
6/20 00:50	69.0	↓-1.1
6/20 01:00	67.8	↓-1.2
6/20 01:10	66.6	↓-1.2
6/20 01:20	65.4	↓-1.2
6/20 01:30	64.2	↓-1.2
6/20 01:40	62.9	↓-1.3
6/20 01:50	61.7	↓-1.2
6/20 02:00	60.4	↓-1.3
6/20 02:10	59.2	↓-1.2
6/20 02:20	57.9	↓-1.3
6/20 02:30	56.8	↓-1.1
6/20 02:40	55.6	↓-1.2
6/20 02:50	54.5	↓-1.1
6/20 03:00	53.4	↓-1.1
6/20 03:10	52.4	↓-1.0
6/20 03:20	51.4	↓-1.0
6/20 03:30	50.5	↓-0.9
6/20 03:40	49.6	↓-0.9
6/20 03:50	48.9	↓-0.7
6/20 04:00	48.2	↓-0.7
6/20 04:10	47.6	↓-0.6
6/20 04:20	47.0	↓-0.6
6/20 04:30	46.6	↓-0.4
6/20 04:40	46.2	↓-0.4
6/20 04:50	45.9	↓-0.3
6/20 05:00	45.8	↓-0.1
6/20 05:10	45.6	↓-0.2	干潮
6/20 05:20	45.6	0
6/20 05:30	45.7	↑0.1
6/20 05:40	45.8	↑0.1
6/20 05:50	46.1	↑0.3
6/20 06:00	46.4	↑0.3
6/20 06:10	46.8	↑0.4
6/20 06:20	47.2	↑0.4
6/20 06:30	47.7	↑0.5
6/20 06:40	48.3	↑0.6
6/20 06:50	48.9	↑0.6
6/20 07:00	49.6	↑0.7
6/20 07:10	50.3	↑0.7
6/20 07:20	51.1	↑0.8
6/20 07:30	51.9	↑0.8
6/20 07:40	52.7	↑0.8
6/20 07:50	53.6	↑0.9
6/20 08:00	54.4	↑0.8
6/20 08:10	55.3	↑0.9
6/20 08:20	56.1	↑0.8
6/20 08:30	57.0	↑0.9
6/20 08:40	57.8	↑0.8
6/20 08:50	58.6	↑0.8
6/20 09:00	59.4	↑0.8
6/20 09:10	60.2	↑0.8
6/20 09:20	60.9	↑0.7
6/20 09:30	61.6	↑0.7
6/20 09:40	62.2	↑0.6
6/20 09:50	62.8	↑0.6
6/20 10:00	63.3	↑0.5
6/20 10:10	63.8	↑0.5
6/20 10:20	64.2	↑0.4
6/20 10:30	64.5	↑0.3
6/20 10:40	64.7	↑0.2
6/20 10:50	64.9	↑0.2
6/20 11:00	65.1	↑0.2
6/20 11:10	65.1	0	満潮
6/20 11:20	65.1	0
6/20 11:30	65.1	0
6/20 11:40	64.9	↓-0.2
6/20 11:50	64.7	↓-0.2
6/20 12:00	64.4	↓-0.3
6/20 12:10	64.1	↓-0.3
6/20 12:20	63.7	↓-0.4
6/20 12:30	63.3	↓-0.4
6/20 12:40	62.8	↓-0.5
6/20 12:50	62.3	↓-0.5
6/20 13:00	61.7	↓-0.6
6/20 13:10	61.2	↓-0.5
6/20 13:20	60.6	↓-0.6
6/20 13:30	59.9	↓-0.7
6/20 13:40	59.3	↓-0.6
6/20 13:50	58.6	↓-0.7
6/20 14:00	58.0	↓-0.6
6/20 14:10	57.4	↓-0.6
6/20 14:20	56.8	↓-0.6
6/20 14:30	56.2	↓-0.6
6/20 14:40	55.6	↓-0.6
6/20 14:50	55.1	↓-0.5
6/20 15:00	54.6	↓-0.5
6/20 15:10	54.1	↓-0.5
6/20 15:20	53.7	↓-0.4
6/20 15:30	53.4	↓-0.3
6/20 15:40	53.1	↓-0.3
6/20 15:50	52.9	↓-0.2
6/20 16:00	52.8	↓-0.1
6/20 16:10	52.7	↓-0.1	干潮
6/20 16:20	52.8	↑0.1
6/20 16:30	52.9	↑0.1
6/20 16:40	53.1	↑0.2
6/20 16:50	53.3	↑0.2
6/20 17:00	53.7	↑0.4
6/20 17:10	54.2	↑0.5
6/20 17:20	54.7	↑0.5
6/20 17:30	55.3	↑0.6
6/20 17:40	56.0	↑0.7
6/20 17:50	56.8	↑0.8
6/20 18:00	57.6	↑0.8
6/20 18:10	58.6	↑1.0
6/20 18:20	59.6	↑1.0
6/20 18:30	60.6	↑1.0
6/20 18:40	61.8	↑1.2
6/20 18:50	62.9	↑1.1
6/20 19:00	64.2	↑1.3
6/20 19:10	65.4	↑1.2
6/20 19:20	66.7	↑1.3
6/20 19:30	68.0	↑1.3
6/20 19:40	69.4	↑1.4	最大潮位差
6/20 19:50	70.7	↑1.3
6/20 20:00	72.1	↑1.4	最大潮位差
6/20 20:10	73.4	↑1.3
6/20 20:20	74.8	↑1.4	最大潮位差
6/20 20:30	76.1	↑1.3
6/20 20:40	77.4	↑1.3
6/20 20:50	78.6	↑1.2
6/20 21:00	79.8	↑1.2
6/20 21:10	81.0	↑1.2
6/20 21:20	82.0	↑1.0
6/20 21:30	83.0	↑1.0
6/20 21:40	84.0	↑1.0
6/20 21:50	84.8	↑0.8
6/20 22:00	85.5	↑0.7
6/20 22:10	86.2	↑0.7
6/20 22:20	86.7	↑0.5
6/20 22:30	87.2	↑0.5
6/20 22:40	87.5	↑0.3
6/20 22:50	87.7	↑0.2
6/20 23:00	87.8	↑0.1	満潮
6/20 23:10	87.8	0
6/20 23:20	87.6	↓-0.2
6/20 23:30	87.4	↓-0.2
6/20 23:40	87.0	↓-0.4
6/20 23:50	86.5	↓-0.5