20 (火)	00:02	03:04	10:12	17:51
	56cm	54cm	78cm	36cm
若潮 出 04:30 入 18:12 出 12:53 入 01:35

コイセボイ（北海道）2032年04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
4/20 00:00	55.5	0	満潮
4/20 00:10	55.5	0
4/20 00:20	55.5	0
4/20 00:30	55.4	↓-0.1
4/20 00:40	55.3	↓-0.1
4/20 00:50	55.2	↓-0.1
4/20 01:00	55.0	↓-0.2
4/20 01:10	54.9	↓-0.1
4/20 01:20	54.7	↓-0.2
4/20 01:30	54.6	↓-0.1
4/20 01:40	54.4	↓-0.2
4/20 01:50	54.2	↓-0.2
4/20 02:00	54.1	↓-0.1
4/20 02:10	53.9	↓-0.2
4/20 02:20	53.8	↓-0.1
4/20 02:30	53.7	↓-0.1
4/20 02:40	53.6	↓-0.1
4/20 02:50	53.5	↓-0.1
4/20 03:00	53.5	0	干潮
4/20 03:10	53.5	0
4/20 03:20	53.5	0
4/20 03:30	53.6	↑0.1
4/20 03:40	53.8	↑0.2
4/20 03:50	53.9	↑0.1
4/20 04:00	54.2	↑0.3
4/20 04:10	54.4	↑0.2
4/20 04:20	54.8	↑0.4
4/20 04:30	55.1	↑0.3
4/20 04:40	55.5	↑0.4
4/20 04:50	56.0	↑0.5
4/20 05:00	56.5	↑0.5
4/20 05:10	57.1	↑0.6
4/20 05:20	57.7	↑0.6
4/20 05:30	58.4	↑0.7
4/20 05:40	59.1	↑0.7
4/20 05:50	59.8	↑0.7
4/20 06:00	60.6	↑0.8
4/20 06:10	61.4	↑0.8
4/20 06:20	62.2	↑0.8
4/20 06:30	63.0	↑0.8
4/20 06:40	63.9	↑0.9
4/20 06:50	64.8	↑0.9
4/20 07:00	65.7	↑0.9
4/20 07:10	66.6	↑0.9
4/20 07:20	67.5	↑0.9
4/20 07:30	68.4	↑0.9
4/20 07:40	69.2	↑0.8
4/20 07:50	70.1	↑0.9
4/20 08:00	70.9	↑0.8
4/20 08:10	71.7	↑0.8
4/20 08:20	72.5	↑0.8
4/20 08:30	73.2	↑0.7
4/20 08:40	73.9	↑0.7
4/20 08:50	74.5	↑0.6
4/20 09:00	75.1	↑0.6
4/20 09:10	75.6	↑0.5
4/20 09:20	76.0	↑0.4
4/20 09:30	76.4	↑0.4
4/20 09:40	76.7	↑0.3
4/20 09:50	76.9	↑0.2
4/20 10:00	77.0	↑0.1
4/20 10:10	77.1	↑0.1	満潮
4/20 10:20	77.0	↓-0.1
4/20 10:30	76.9	↓-0.1
4/20 10:40	76.7	↓-0.2
4/20 10:50	76.4	↓-0.3
4/20 11:00	76.0	↓-0.4
4/20 11:10	75.5	↓-0.5
4/20 11:20	75.0	↓-0.5
4/20 11:30	74.3	↓-0.7
4/20 11:40	73.6	↓-0.7
4/20 11:50	72.8	↓-0.8
4/20 12:00	71.9	↓-0.9
4/20 12:10	70.9	↓-1.0
4/20 12:20	69.9	↓-1.0
4/20 12:30	68.8	↓-1.1
4/20 12:40	67.6	↓-1.2
4/20 12:50	66.4	↓-1.2
4/20 13:00	65.1	↓-1.3
4/20 13:10	63.8	↓-1.3
4/20 13:20	62.4	↓-1.4
4/20 13:30	61.0	↓-1.4
4/20 13:40	59.6	↓-1.4
4/20 13:50	58.2	↓-1.4
4/20 14:00	56.7	↓-1.5	最大潮位差
4/20 14:10	55.3	↓-1.4
4/20 14:20	53.8	↓-1.5	最大潮位差
4/20 14:30	52.4	↓-1.4
4/20 14:40	51.0	↓-1.4
4/20 14:50	49.6	↓-1.4
4/20 15:00	48.2	↓-1.4
4/20 15:10	46.9	↓-1.3
4/20 15:20	45.6	↓-1.3
4/20 15:30	44.4	↓-1.2
4/20 15:40	43.2	↓-1.2
4/20 15:50	42.1	↓-1.1
4/20 16:00	41.1	↓-1.0
4/20 16:10	40.1	↓-1.0
4/20 16:20	39.2	↓-0.9
4/20 16:30	38.4	↓-0.8
4/20 16:40	37.7	↓-0.7
4/20 16:50	37.1	↓-0.6
4/20 17:00	36.5	↓-0.6
4/20 17:10	36.1	↓-0.4
4/20 17:20	35.8	↓-0.3
4/20 17:30	35.5	↓-0.3
4/20 17:40	35.4	↓-0.1
4/20 17:50	35.3	↓-0.1	干潮
4/20 18:00	35.4	↑0.1
4/20 18:10	35.5	↑0.1
4/20 18:20	35.8	↑0.3
4/20 18:30	36.1	↑0.3
4/20 18:40	36.5	↑0.4
4/20 18:50	37.0	↑0.5
4/20 19:00	37.6	↑0.6
4/20 19:10	38.2	↑0.6
4/20 19:20	38.9	↑0.7
4/20 19:30	39.7	↑0.8
4/20 19:40	40.6	↑0.9
4/20 19:50	41.5	↑0.9
4/20 20:00	42.4	↑0.9
4/20 20:10	43.4	↑1.0
4/20 20:20	44.4	↑1.0
4/20 20:30	45.5	↑1.1
4/20 20:40	46.5	↑1.0
4/20 20:50	47.6	↑1.1
4/20 21:00	48.7	↑1.1
4/20 21:10	49.7	↑1.0
4/20 21:20	50.8	↑1.1
4/20 21:30	51.8	↑1.0
4/20 21:40	52.8	↑1.0
4/20 21:50	53.8	↑1.0
4/20 22:00	54.8	↑1.0
4/20 22:10	55.7	↑0.9
4/20 22:20	56.6	↑0.9
4/20 22:30	57.4	↑0.8
4/20 22:40	58.1	↑0.7
4/20 22:50	58.8	↑0.7
4/20 23:00	59.4	↑0.6
4/20 23:10	59.9	↑0.5
4/20 23:20	60.4	↑0.5
4/20 23:30	60.8	↑0.4
4/20 23:40	61.1	↑0.3
4/20 23:50	61.4	↑0.3