18 (日)	08:45	03:03	21:01	13:53
	69cm	50cm	93cm	55cm
小潮 出 03:55 入 19:01 出 12:36 入 23:21

コイセボイ（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	63.8	↓-1.3
7/18 00:10	62.5	↓-1.3
7/18 00:20	61.2	↓-1.3
7/18 00:30	59.9	↓-1.3
7/18 00:40	58.7	↓-1.2
7/18 00:50	57.6	↓-1.1
7/18 01:00	56.5	↓-1.1
7/18 01:10	55.5	↓-1.0
7/18 01:20	54.5	↓-1.0
7/18 01:30	53.7	↓-0.8
7/18 01:40	52.9	↓-0.8
7/18 01:50	52.2	↓-0.7
7/18 02:00	51.6	↓-0.6
7/18 02:10	51.0	↓-0.6
7/18 02:20	50.6	↓-0.4
7/18 02:30	50.3	↓-0.3
7/18 02:40	50.0	↓-0.3
7/18 02:50	49.9	↓-0.1
7/18 03:00	49.8	↓-0.1	干潮
7/18 03:10	49.8	0
7/18 03:20	49.9	↑0.1
7/18 03:30	50.1	↑0.2
7/18 03:40	50.4	↑0.3
7/18 03:50	50.8	↑0.4
7/18 04:00	51.2	↑0.4
7/18 04:10	51.7	↑0.5
7/18 04:20	52.3	↑0.6
7/18 04:30	52.9	↑0.6
7/18 04:40	53.6	↑0.7
7/18 04:50	54.4	↑0.8
7/18 05:00	55.1	↑0.7
7/18 05:10	55.9	↑0.8
7/18 05:20	56.7	↑0.8
7/18 05:30	57.6	↑0.9
7/18 05:40	58.4	↑0.8
7/18 05:50	59.3	↑0.9
7/18 06:00	60.1	↑0.8
7/18 06:10	61.0	↑0.9
7/18 06:20	61.8	↑0.8
7/18 06:30	62.6	↑0.8
7/18 06:40	63.4	↑0.8
7/18 06:50	64.1	↑0.7
7/18 07:00	64.8	↑0.7
7/18 07:10	65.5	↑0.7
7/18 07:20	66.0	↑0.5
7/18 07:30	66.6	↑0.6
7/18 07:40	67.1	↑0.5
7/18 07:50	67.5	↑0.4
7/18 08:00	67.8	↑0.3
7/18 08:10	68.1	↑0.3
7/18 08:20	68.3	↑0.2
7/18 08:30	68.5	↑0.2
7/18 08:40	68.5	0	満潮
7/18 08:50	68.5	0
7/18 09:00	68.4	↓-0.1
7/18 09:10	68.3	↓-0.1
7/18 09:20	68.1	↓-0.2
7/18 09:30	67.8	↓-0.3
7/18 09:40	67.5	↓-0.3
7/18 09:50	67.1	↓-0.4
7/18 10:00	66.6	↓-0.5
7/18 10:10	66.1	↓-0.5
7/18 10:20	65.6	↓-0.5
7/18 10:30	65.0	↓-0.6
7/18 10:40	64.4	↓-0.6
7/18 10:50	63.7	↓-0.7
7/18 11:00	63.0	↓-0.7
7/18 11:10	62.4	↓-0.6
7/18 11:20	61.7	↓-0.7
7/18 11:30	61.0	↓-0.7
7/18 11:40	60.3	↓-0.7
7/18 11:50	59.6	↓-0.7
7/18 12:00	58.9	↓-0.7
7/18 12:10	58.3	↓-0.6
7/18 12:20	57.7	↓-0.6
7/18 12:30	57.1	↓-0.6
7/18 12:40	56.6	↓-0.5
7/18 12:50	56.1	↓-0.5
7/18 13:00	55.7	↓-0.4
7/18 13:10	55.4	↓-0.3
7/18 13:20	55.1	↓-0.3
7/18 13:30	54.9	↓-0.2
7/18 13:40	54.7	↓-0.2
7/18 13:50	54.7	0	干潮
7/18 14:00	54.7	0
7/18 14:10	54.8	↑0.1
7/18 14:20	55.0	↑0.2
7/18 14:30	55.3	↑0.3
7/18 14:40	55.7	↑0.4
7/18 14:50	56.1	↑0.4
7/18 15:00	56.7	↑0.6
7/18 15:10	57.3	↑0.6
7/18 15:20	58.0	↑0.7
7/18 15:30	58.8	↑0.8
7/18 15:40	59.7	↑0.9
7/18 15:50	60.7	↑1.0
7/18 16:00	61.7	↑1.0
7/18 16:10	62.8	↑1.1
7/18 16:20	63.9	↑1.1
7/18 16:30	65.2	↑1.3
7/18 16:40	66.4	↑1.2
7/18 16:50	67.7	↑1.3
7/18 17:00	69.1	↑1.4
7/18 17:10	70.4	↑1.3
7/18 17:20	71.8	↑1.4
7/18 17:30	73.2	↑1.4
7/18 17:40	74.6	↑1.4
7/18 17:50	76.0	↑1.4
7/18 18:00	77.4	↑1.4
7/18 18:10	78.8	↑1.4
7/18 18:20	80.2	↑1.4
7/18 18:30	81.5	↑1.3
7/18 18:40	82.8	↑1.3
7/18 18:50	84.0	↑1.2
7/18 19:00	85.2	↑1.2
7/18 19:10	86.3	↑1.1
7/18 19:20	87.3	↑1.0
7/18 19:30	88.3	↑1.0
7/18 19:40	89.1	↑0.8
7/18 19:50	89.9	↑0.8
7/18 20:00	90.6	↑0.7
7/18 20:10	91.2	↑0.6
7/18 20:20	91.7	↑0.5
7/18 20:30	92.1	↑0.4
7/18 20:40	92.4	↑0.3
7/18 20:50	92.5	↑0.1
7/18 21:00	92.6	↑0.1	満潮
7/18 21:10	92.5	↓-0.1
7/18 21:20	92.4	↓-0.1
7/18 21:30	92.1	↓-0.3
7/18 21:40	91.7	↓-0.4
7/18 21:50	91.2	↓-0.5
7/18 22:00	90.6	↓-0.6
7/18 22:10	89.9	↓-0.7
7/18 22:20	89.0	↓-0.9
7/18 22:30	88.1	↓-0.9
7/18 22:40	87.1	↓-1.0
7/18 22:50	86.0	↓-1.1
7/18 23:00	84.8	↓-1.2
7/18 23:10	83.6	↓-1.2
7/18 23:20	82.2	↓-1.4
7/18 23:30	80.8	↓-1.4
7/18 23:40	79.4	↓-1.4
7/18 23:50	77.9	↓-1.5	最大潮位差