12 (日)	01:34	08:03	14:34	20:06
	78cm	25cm	79cm	44cm
出 04:43 入 18:03 出 03:48 入 17:14

コイセボイ（北海道）2048年04月12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
4/12 00:00	71.4	↑1.4
4/12 00:10	72.6	↑1.2
4/12 00:20	73.7	↑1.1
4/12 00:30	74.7	↑1.0
4/12 00:40	75.5	↑0.8
4/12 00:50	76.2	↑0.7
4/12 01:00	76.8	↑0.6
4/12 01:10	77.3	↑0.5
4/12 01:20	77.5	↑0.2
4/12 01:30	77.7	↑0.2	満潮
4/12 01:40	77.6	↓-0.1
4/12 01:50	77.4	↓-0.2
4/12 02:00	77.0	↓-0.4
4/12 02:10	76.5	↓-0.5
4/12 02:20	75.8	↓-0.7
4/12 02:30	75.0	↓-0.8
4/12 02:40	74.0	↓-1.0
4/12 02:50	72.8	↓-1.2
4/12 03:00	71.6	↓-1.2
4/12 03:10	70.1	↓-1.5
4/12 03:20	68.6	↓-1.5
4/12 03:30	66.9	↓-1.7
4/12 03:40	65.2	↓-1.7
4/12 03:50	63.3	↓-1.9
4/12 04:00	61.3	↓-2.0
4/12 04:10	59.3	↓-2.0
4/12 04:20	57.2	↓-2.1
4/12 04:30	55.1	↓-2.1
4/12 04:40	53.0	↓-2.1
4/12 04:50	50.8	↓-2.2	最大潮位差
4/12 05:00	48.6	↓-2.2	最大潮位差
4/12 05:10	46.5	↓-2.1
4/12 05:20	44.3	↓-2.2	最大潮位差
4/12 05:30	42.2	↓-2.1
4/12 05:40	40.2	↓-2.0
4/12 05:50	38.2	↓-2.0
4/12 06:00	36.4	↓-1.8
4/12 06:10	34.6	↓-1.8
4/12 06:20	32.9	↓-1.7
4/12 06:30	31.3	↓-1.6
4/12 06:40	29.9	↓-1.4
4/12 06:50	28.6	↓-1.3
4/12 07:00	27.4	↓-1.2
4/12 07:10	26.5	↓-0.9
4/12 07:20	25.6	↓-0.9
4/12 07:30	25.0	↓-0.6
4/12 07:40	24.5	↓-0.5
4/12 07:50	24.2	↓-0.3
4/12 08:00	24.0	↓-0.2	干潮
4/12 08:10	24.1	↑0.1
4/12 08:20	24.3	↑0.2
4/12 08:30	24.7	↑0.4
4/12 08:40	25.3	↑0.6
4/12 08:50	26.1	↑0.8
4/12 09:00	27.0	↑0.9
4/12 09:10	28.1	↑1.1
4/12 09:20	29.3	↑1.2
4/12 09:30	30.7	↑1.4
4/12 09:40	32.2	↑1.5
4/12 09:50	33.9	↑1.7
4/12 10:00	35.6	↑1.7
4/12 10:10	37.5	↑1.9
4/12 10:20	39.4	↑1.9
4/12 10:30	41.5	↑2.1
4/12 10:40	43.6	↑2.1
4/12 10:50	45.7	↑2.1
4/12 11:00	47.9	↑2.2	最大潮位差
4/12 11:10	50.1	↑2.2	最大潮位差
4/12 11:20	52.3	↑2.2	最大潮位差
4/12 11:30	54.5	↑2.2	最大潮位差
4/12 11:40	56.7	↑2.2	最大潮位差
4/12 11:50	58.8	↑2.1
4/12 12:00	60.9	↑2.1
4/12 12:10	62.9	↑2.0
4/12 12:20	64.9	↑2.0
4/12 12:30	66.7	↑1.8
4/12 12:40	68.5	↑1.8
4/12 12:50	70.1	↑1.6
4/12 13:00	71.7	↑1.6
4/12 13:10	73.0	↑1.3
4/12 13:20	74.3	↑1.3
4/12 13:30	75.4	↑1.1
4/12 13:40	76.3	↑0.9
4/12 13:50	77.1	↑0.8
4/12 14:00	77.7	↑0.6
4/12 14:10	78.2	↑0.5
4/12 14:20	78.5	↑0.3
4/12 14:30	78.6	↑0.1	満潮
4/12 14:40	78.6	0
4/12 14:50	78.4	↓-0.2
4/12 15:00	78.0	↓-0.4
4/12 15:10	77.5	↓-0.5
4/12 15:20	76.9	↓-0.6
4/12 15:30	76.1	↓-0.8
4/12 15:40	75.2	↓-0.9
4/12 15:50	74.1	↓-1.1
4/12 16:00	72.9	↓-1.2
4/12 16:10	71.7	↓-1.2
4/12 16:20	70.3	↓-1.4
4/12 16:30	68.9	↓-1.4
4/12 16:40	67.4	↓-1.5
4/12 16:50	65.8	↓-1.6
4/12 17:00	64.2	↓-1.6
4/12 17:10	62.6	↓-1.6
4/12 17:20	61.0	↓-1.6
4/12 17:30	59.4	↓-1.6
4/12 17:40	57.8	↓-1.6
4/12 17:50	56.2	↓-1.6
4/12 18:00	54.7	↓-1.5
4/12 18:10	53.2	↓-1.5
4/12 18:20	51.8	↓-1.4
4/12 18:30	50.5	↓-1.3
4/12 18:40	49.2	↓-1.3
4/12 18:50	48.1	↓-1.1
4/12 19:00	47.1	↓-1.0
4/12 19:10	46.3	↓-0.8
4/12 19:20	45.5	↓-0.8
4/12 19:30	44.9	↓-0.6
4/12 19:40	44.4	↓-0.5
4/12 19:50	44.1	↓-0.3
4/12 20:00	44.0	↓-0.1	干潮
4/12 20:10	44.0	0
4/12 20:20	44.2	↑0.2
4/12 20:30	44.5	↑0.3
4/12 20:40	45.0	↑0.5
4/12 20:50	45.6	↑0.6
4/12 21:00	46.4	↑0.8
4/12 21:10	47.3	↑0.9
4/12 21:20	48.4	↑1.1
4/12 21:30	49.6	↑1.2
4/12 21:40	50.9	↑1.3
4/12 21:50	52.3	↑1.4
4/12 22:00	53.9	↑1.6
4/12 22:10	55.5	↑1.6
4/12 22:20	57.2	↑1.7
4/12 22:30	59.0	↑1.8
4/12 22:40	60.8	↑1.8
4/12 22:50	62.7	↑1.9
4/12 23:00	64.6	↑1.9
4/12 23:10	66.5	↑1.9
4/12 23:20	68.4	↑1.9
4/12 23:30	70.3	↑1.9
4/12 23:40	72.2	↑1.9
4/12 23:50	74.0	↑1.8