18 (木)	08:47	02:06	19:52	13:56
	79cm	44cm	86cm	64cm
小潮 出 06:51 入 15:45 出 11:27 入 23:24

コイセボイ（北海道）2053年12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
12/18 00:00	53.3	↓-1.5	最大潮位差
12/18 00:10	51.9	↓-1.4
12/18 00:20	50.6	↓-1.3
12/18 00:30	49.4	↓-1.2
12/18 00:40	48.3	↓-1.1
12/18 00:50	47.3	↓-1.0
12/18 01:00	46.4	↓-0.9
12/18 01:10	45.6	↓-0.8
12/18 01:20	45.0	↓-0.6
12/18 01:30	44.5	↓-0.5
12/18 01:40	44.1	↓-0.4
12/18 01:50	43.8	↓-0.3
12/18 02:00	43.7	↓-0.1	干潮
12/18 02:10	43.7	0
12/18 02:20	43.8	↑0.1
12/18 02:30	44.1	↑0.3
12/18 02:40	44.4	↑0.3
12/18 02:50	44.9	↑0.5
12/18 03:00	45.5	↑0.6
12/18 03:10	46.2	↑0.7
12/18 03:20	46.9	↑0.7
12/18 03:30	47.8	↑0.9
12/18 03:40	48.8	↑1.0
12/18 03:50	49.9	↑1.1
12/18 04:00	51.0	↑1.1
12/18 04:10	52.2	↑1.2
12/18 04:20	53.4	↑1.2
12/18 04:30	54.7	↑1.3
12/18 04:40	56.0	↑1.3
12/18 04:50	57.4	↑1.4
12/18 05:00	58.7	↑1.3
12/18 05:10	60.1	↑1.4
12/18 05:20	61.5	↑1.4
12/18 05:30	62.9	↑1.4
12/18 05:40	64.2	↑1.3
12/18 05:50	65.6	↑1.4
12/18 06:00	66.9	↑1.3
12/18 06:10	68.2	↑1.3
12/18 06:20	69.4	↑1.2
12/18 06:30	70.5	↑1.1
12/18 06:40	71.7	↑1.2
12/18 06:50	72.7	↑1.0
12/18 07:00	73.7	↑1.0
12/18 07:10	74.6	↑0.9
12/18 07:20	75.4	↑0.8
12/18 07:30	76.1	↑0.7
12/18 07:40	76.7	↑0.6
12/18 07:50	77.3	↑0.6
12/18 08:00	77.7	↑0.4
12/18 08:10	78.1	↑0.4
12/18 08:20	78.4	↑0.3
12/18 08:30	78.6	↑0.2
12/18 08:40	78.7	↑0.1	満潮
12/18 08:50	78.7	0
12/18 09:00	78.6	↓-0.1
12/18 09:10	78.4	↓-0.2
12/18 09:20	78.2	↓-0.2
12/18 09:30	77.9	↓-0.3
12/18 09:40	77.5	↓-0.4
12/18 09:50	77.0	↓-0.5
12/18 10:00	76.5	↓-0.5
12/18 10:10	76.0	↓-0.5
12/18 10:20	75.4	↓-0.6
12/18 10:30	74.7	↓-0.7
12/18 10:40	74.0	↓-0.7
12/18 10:50	73.3	↓-0.7
12/18 11:00	72.6	↓-0.7
12/18 11:10	71.8	↓-0.8
12/18 11:20	71.1	↓-0.7
12/18 11:30	70.4	↓-0.7
12/18 11:40	69.6	↓-0.8
12/18 11:50	68.9	↓-0.7
12/18 12:00	68.2	↓-0.7
12/18 12:10	67.6	↓-0.6
12/18 12:20	66.9	↓-0.7
12/18 12:30	66.4	↓-0.5
12/18 12:40	65.8	↓-0.6
12/18 12:50	65.3	↓-0.5
12/18 13:00	64.9	↓-0.4
12/18 13:10	64.6	↓-0.3
12/18 13:20	64.3	↓-0.3
12/18 13:30	64.1	↓-0.2
12/18 13:40	63.9	↓-0.2
12/18 13:50	63.8	↓-0.1	干潮
12/18 14:00	63.8	0
12/18 14:10	63.9	↑0.1
12/18 14:20	64.1	↑0.2
12/18 14:30	64.3	↑0.2
12/18 14:40	64.6	↑0.3
12/18 14:50	65.0	↑0.4
12/18 15:00	65.4	↑0.4
12/18 15:10	66.0	↑0.6
12/18 15:20	66.5	↑0.5
12/18 15:30	67.2	↑0.7
12/18 15:40	67.9	↑0.7
12/18 15:50	68.6	↑0.7
12/18 16:00	69.4	↑0.8
12/18 16:10	70.2	↑0.8
12/18 16:20	71.1	↑0.9
12/18 16:30	72.0	↑0.9
12/18 16:40	72.9	↑0.9
12/18 16:50	73.8	↑0.9
12/18 17:00	74.8	↑1.0
12/18 17:10	75.7	↑0.9
12/18 17:20	76.6	↑0.9
12/18 17:30	77.5	↑0.9
12/18 17:40	78.4	↑0.9
12/18 17:50	79.3	↑0.9
12/18 18:00	80.1	↑0.8
12/18 18:10	80.9	↑0.8
12/18 18:20	81.6	↑0.7
12/18 18:30	82.3	↑0.7
12/18 18:40	82.9	↑0.6
12/18 18:50	83.4	↑0.5
12/18 19:00	83.9	↑0.5
12/18 19:10	84.3	↑0.4
12/18 19:20	84.6	↑0.3
12/18 19:30	84.8	↑0.2
12/18 19:40	85.0	↑0.2
12/18 19:50	85.0	0	満潮
12/18 20:00	85.0	0
12/18 20:10	84.9	↓-0.1
12/18 20:20	84.6	↓-0.3
12/18 20:30	84.3	↓-0.3
12/18 20:40	83.9	↓-0.4
12/18 20:50	83.4	↓-0.5
12/18 21:00	82.8	↓-0.6
12/18 21:10	82.1	↓-0.7
12/18 21:20	81.4	↓-0.7
12/18 21:30	80.5	↓-0.9
12/18 21:40	79.6	↓-0.9
12/18 21:50	78.6	↓-1.0
12/18 22:00	77.6	↓-1.0
12/18 22:10	76.4	↓-1.2
12/18 22:20	75.3	↓-1.1
12/18 22:30	74.1	↓-1.2
12/18 22:40	72.8	↓-1.3
12/18 22:50	71.5	↓-1.3
12/18 23:00	70.2	↓-1.3
12/18 23:10	68.9	↓-1.3
12/18 23:20	67.5	↓-1.4
12/18 23:30	66.2	↓-1.3
12/18 23:40	64.9	↓-1.3
12/18 23:50	63.5	↓-1.4