18 (月)	00:33	06:00	12:25	18:55
	64cm	44cm	77cm	39cm
中潮 出 04:34 入 18:09 出 02:25 入 14:24

コイセボイ（北海道）2050年04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
4/18 00:00	62.8	↑0.3
4/18 00:10	63.0	↑0.2
4/18 00:20	63.2	↑0.2
4/18 00:30	63.2	0	満潮
4/18 00:40	63.2	0
4/18 00:50	63.1	↓-0.1
4/18 01:00	62.9	↓-0.2
4/18 01:10	62.6	↓-0.3
4/18 01:20	62.2	↓-0.4
4/18 01:30	61.8	↓-0.4
4/18 01:40	61.3	↓-0.5
4/18 01:50	60.7	↓-0.6
4/18 02:00	60.0	↓-0.7
4/18 02:10	59.3	↓-0.7
4/18 02:20	58.5	↓-0.8
4/18 02:30	57.7	↓-0.8
4/18 02:40	56.9	↓-0.8
4/18 02:50	56.0	↓-0.9
4/18 03:00	55.1	↓-0.9
4/18 03:10	54.2	↓-0.9
4/18 03:20	53.3	↓-0.9
4/18 03:30	52.4	↓-0.9
4/18 03:40	51.5	↓-0.9
4/18 03:50	50.6	↓-0.9
4/18 04:00	49.7	↓-0.9
4/18 04:10	48.9	↓-0.8
4/18 04:20	48.1	↓-0.8
4/18 04:30	47.4	↓-0.7
4/18 04:40	46.7	↓-0.7
4/18 04:50	46.1	↓-0.6
4/18 05:00	45.5	↓-0.6
4/18 05:10	45.1	↓-0.4
4/18 05:20	44.7	↓-0.4
4/18 05:30	44.4	↓-0.3
4/18 05:40	44.1	↓-0.3
4/18 05:50	44.0	↓-0.1	干潮
4/18 06:00	44.0	0	干潮
4/18 06:10	44.0	0
4/18 06:20	44.2	↑0.2
4/18 06:30	44.4	↑0.2
4/18 06:40	44.8	↑0.4
4/18 06:50	45.2	↑0.4
4/18 07:00	45.7	↑0.5
4/18 07:10	46.4	↑0.7
4/18 07:20	47.1	↑0.7
4/18 07:30	47.9	↑0.8
4/18 07:40	48.8	↑0.9
4/18 07:50	49.7	↑0.9
4/18 08:00	50.8	↑1.1
4/18 08:10	51.9	↑1.1
4/18 08:20	53.0	↑1.1
4/18 08:30	54.2	↑1.2
4/18 08:40	55.5	↑1.3
4/18 08:50	56.7	↑1.2
4/18 09:00	58.0	↑1.3
4/18 09:10	59.4	↑1.4
4/18 09:20	60.7	↑1.3
4/18 09:30	62.0	↑1.3
4/18 09:40	63.3	↑1.3
4/18 09:50	64.6	↑1.3
4/18 10:00	65.9	↑1.3
4/18 10:10	67.1	↑1.2
4/18 10:20	68.3	↑1.2
4/18 10:30	69.4	↑1.1
4/18 10:40	70.5	↑1.1
4/18 10:50	71.5	↑1.0
4/18 11:00	72.4	↑0.9
4/18 11:10	73.3	↑0.9
4/18 11:20	74.0	↑0.7
4/18 11:30	74.7	↑0.7
4/18 11:40	75.2	↑0.5
4/18 11:50	75.7	↑0.5
4/18 12:00	76.0	↑0.3
4/18 12:10	76.2	↑0.2
4/18 12:20	76.3	↑0.1	満潮
4/18 12:30	76.3	0
4/18 12:40	76.2	↓-0.1
4/18 12:50	75.9	↓-0.3
4/18 13:00	75.6	↓-0.3
4/18 13:10	75.1	↓-0.5
4/18 13:20	74.5	↓-0.6
4/18 13:30	73.8	↓-0.7
4/18 13:40	73.0	↓-0.8
4/18 13:50	72.1	↓-0.9
4/18 14:00	71.1	↓-1.0
4/18 14:10	70.0	↓-1.1
4/18 14:20	68.9	↓-1.1
4/18 14:30	67.6	↓-1.3
4/18 14:40	66.3	↓-1.3
4/18 14:50	64.9	↓-1.4
4/18 15:00	63.5	↓-1.4
4/18 15:10	62.0	↓-1.5
4/18 15:20	60.6	↓-1.4
4/18 15:30	59.0	↓-1.6	最大潮位差
4/18 15:40	57.5	↓-1.5
4/18 15:50	56.0	↓-1.5
4/18 16:00	54.5	↓-1.5
4/18 16:10	53.0	↓-1.5
4/18 16:20	51.5	↓-1.5
4/18 16:30	50.1	↓-1.4
4/18 16:40	48.7	↓-1.4
4/18 16:50	47.4	↓-1.3
4/18 17:00	46.1	↓-1.3
4/18 17:10	45.0	↓-1.1
4/18 17:20	43.9	↓-1.1
4/18 17:30	42.9	↓-1.0
4/18 17:40	42.0	↓-0.9
4/18 17:50	41.1	↓-0.9
4/18 18:00	40.4	↓-0.7
4/18 18:10	39.9	↓-0.5
4/18 18:20	39.4	↓-0.5
4/18 18:30	39.0	↓-0.4
4/18 18:40	38.8	↓-0.2
4/18 18:50	38.7	↓-0.1	干潮
4/18 19:00	38.7	0
4/18 19:10	38.9	↑0.2
4/18 19:20	39.1	↑0.2
4/18 19:30	39.5	↑0.4
4/18 19:40	40.0	↑0.5
4/18 19:50	40.6	↑0.6
4/18 20:00	41.3	↑0.7
4/18 20:10	42.1	↑0.8
4/18 20:20	43.1	↑1.0
4/18 20:30	44.1	↑1.0
4/18 20:40	45.1	↑1.0
4/18 20:50	46.3	↑1.2
4/18 21:00	47.5	↑1.2
4/18 21:10	48.8	↑1.3
4/18 21:20	50.1	↑1.3
4/18 21:30	51.5	↑1.4
4/18 21:40	52.9	↑1.4
4/18 21:50	54.3	↑1.4
4/18 22:00	55.7	↑1.4
4/18 22:10	57.1	↑1.4
4/18 22:20	58.5	↑1.4
4/18 22:30	59.8	↑1.3
4/18 22:40	61.1	↑1.3
4/18 22:50	62.4	↑1.3
4/18 23:00	63.6	↑1.2
4/18 23:10	64.8	↑1.2
4/18 23:20	65.9	↑1.1
4/18 23:30	66.9	↑1.0
4/18 23:40	67.8	↑0.9
4/18 23:50	68.6	↑0.8